Method for temperature control of an X-ray device, X-ray device and computer program product

Abstract

The invention relates to a method for controlling the temperature of an X-ray device, comprising: - Acquiring planning information comprising at least one operating parameter of at least one component of the X-ray device for a planned operation of the X-ray device, - identifying a planning temperature of the at least one component of the X-ray device based on the at least one operating parameter, - Operating the X-ray machine according to the planning information, wherein a temperature control unit of the X-ray device is controlled before and / or during operation of the X-ray device based on the planning temperature such that the temperature control unit tempers the at least one component of the X-ray device to a predefined temperature or a predefined temperature range by providing a heating and / or cooling power. The invention further relates to an X-ray device and a computer program product.

Description

The present invention relates to a method for tempering an X-ray apparatus, an X-ray apparatus and a computer program product.Modern computed tomography (CT) devices or computed tomography devices have a gantry with a rotatable frame on which, among other things, the X-ray source and an X-ray detector for detecting X-ray radiation are arranged. An X-ray detector of this type generally comprises an X-ray converter element which has an X-ray sensor layer and, if appropriate, a layer with A / D (analog-to-digital) converters arranged beneath it. Current CT devices are often cooled by a large flow of air with cooling air. All components of the CT device are connected to a common compressed air channel and thus receive the same air flow, which is statically adjusted only by different ventilation holes. The component with the greatest cooling requirement specifies the amount of air to be provided. By connecting to a cooling water line, a temperature of the cooling air can also be regulated, for example by means of a heat exchanger, and correspondingly a constant cooling capacity can be achieved.The CT device, in particular a detector of the CT device, comprises a plurality of electronic components, for example semiconductor sensors. The electronic components, in particular the semiconductor sensors, are usually temperature-dependent. The output signals provided by the electronic components are thus also temperature-dependent. Frequently, the cooling power is controlled reactively in current CT devices, in particular in response to a requirement of a component of the CT device that more cooling, in particular a temperature reduction, is required. Thus, the adaptation of the cooling always takes place only at the moment when the leading component of the CT device is too warm, in particular a predefined maximum temperature has been reached or exceeded, and requests more cooling air. This form of cooling power control is disadvantageously retrospective and always has a control hysteresis.The document DE 10 2021 206 501 B3 discloses a method for operating a directly converting, in particular photon counting, X-ray detector, wherein the X-ray detector comprises a directly converting sensor material which is at a DC voltage and is to be kept at a working temperature.The publication DE 10 2006 049 549 A1 discloses a method for operating an X-ray tube, in which it is provided according to the invention that the temperature of a tube hood is kept at a predefinable value within a tolerance range by means of a heating device.The publication DE 10 2014 201 741 A1 discloses a method, wherein for adjusting the temperature of an X-ray detector comprising a plurality of detector elements arranged next to one another, provision is made to detect during the acquisition of the X-ray image recording a heat input quantity characteristic of the detector elements in each case for the heat input into this detector element, and to take into account the heat input quantity respectively acquired for each detector element in a temperature control of at least one other detector element.The document DE 10 2020 210 804 A1 discloses a method for generating an X-ray radiation for imaging, wherein an estimation of a thermal load of the X-ray device takes place, wherein the estimation depends on a retrieved heating characteristic curve of a component and the electrical power requirement for this component, and wherein as input parameter for the estimation a current temperature of the first component is taken into account as a load parameter influencing a release time. Furthermore, the release time is defined as a function of the estimated thermal load and X-ray radiation is generated at the release time by means of the X-ray device.It is therefore the object of the present invention to enable an improved temperature control of at least one component of an X-ray apparatus in order to avoid thermal over- and / or under-oscillations.The object is achieved according to the invention by the subject matter of the independent claims. Advantageous embodiments with expedient refinements are the subject matter of the dependent claims. Regardless of the grammatical sex of a certain term, individuals with male, female or other sex identity are included.In a first aspect, the invention relates to a method for tempering an X-ray apparatus. In a first step, planning information comprising at least one operating parameter of at least one component of the X-ray device is acquired for a planned operation of the X-ray device. In a further step, a planning temperature of the at least one component of the X-ray apparatus is identified on the basis of the at least one operating parameter. In a further step, the X-ray apparatus is operated according to the planning information. In this case, a temperature control unit of the X-ray apparatus is controlled before and / or during operation of the X-ray apparatus, in particular at least before the start of operation, on the basis of the planning temperature in such a way that the temperature control unit controls the at least one component of the X-ray apparatus to a predefined temperature or a predefined temperature range by providing a heating and / or cooling power.The acquisition of the planning information can comprise receiving the planning information and / or acquiring the planning information on the basis of a user input. The reception of the planning information can comprise, in particular, a recording and / or reading of a computer-readable data memory and / or a reception from a data memory unit, for example a database. Furthermore, the planning information can be provided by a provision unit, for example a medical device, in particular a CT device. Alternatively or additionally, the planning information can be acquired by means of an input unit for acquiring the user input, for example by means of a keyboard and / or a pointing device.The planning information can comprise at least one operating parameter relating to at least one component of the X-ray device for the planned, in particular future, operation of the X-ray device. The planned operation of the X-ray device can denote an operation of the X-ray device that has not yet begun, in particular future. In particular, the planning information can comprise a plurality of operating parameters, in particular a plurality of different operating parameters and / or a plurality of values for one or a plurality of operating parameters, of at least one component, in particular a plurality of components, of the X-ray apparatus. For example, the planning information can comprise a plurality of values for at least one operating parameter of the at least one component of the X-ray device, which values specify a temporal sequence, in particular a temporal sequence, of an operating parameter configuration of the at least one component of the X-ray device. Alternatively or additionally, the planning information can comprise at least one operating parameter for a plurality of components of the X-ray device. The at least one component of the X-ray device can comprise, for example, an X-ray source and / or an X-ray detector and / or a collimator wall and / or a motor of the X-ray device.Advantageously, a planning temperature of the at least one component, in particular a planning temperature for each of the plurality of components, of the X-ray apparatus can be identified on the basis of the at least one operating parameter, in particular on the basis of the plurality of operating parameters. The identification of the planning temperature can comprise, for example, a simulation and / or a calculation based on the at least one operating parameter and / or based on historical temperature values of the at least one component of the X-ray device and / or on, in particular measured and / or simulated, temperature values of a comparable at least one component of the X-ray device or of another X-ray device for the at least one operating parameter, for example by means of a look-up table. Advantageously, the planning temperature can denote a temperature value to be expected for the at least one component during the planned, in particular future, operation of the X-ray apparatus, in particular without taking into account a heating and / or cooling capacity that can be provided by the temperature control unit.Operating the X-ray device according to the planning information can comprise operating the at least one component of the X-ray device according to the at least one operating parameter. Advantageously, the operation of the X-ray device according to the planning information can be carried out temporally after the acquisition of the planning information and the identification of the planning temperature. In particular, the X-ray device can be in a rest-by mode ("standby") before the start of operation. The operation of the X-ray device according to the planning information can comprise, for example, a recording operation and / or a positioning operation and / or a calibration operation of the X-ray device.The temperature control unit can comprise at least one cooling element, for example a heat exchanger, and / or at least one heating element, for example a heating wire. The at least one cooling element and / or the at least one heating element can be arranged on the at least one component of the X-ray apparatus to be temperature-controlled or integrated into the at least one component of the X-ray apparatus to be temperature-controlled. Alternatively or additionally, the at least one cooling element and / or the at least one heating element can be arranged at a distance from the at least one component of the X-ray device to be temperature-controlled, wherein a heat transfer between the at least one cooling element and / or the at least one heating element and the at least one component of the X-ray device takes place by means of a heat-conducting medium, for example a fluid.Advantageously, the temperature control unit of the X-ray apparatus can be controlled based on the planning temperature temporally before the start of the operation of the X-ray apparatus in such a way that the temperature control unit controls the at least one component of the X-ray apparatus to the predefined temperature or the predefined temperature range by providing the heating and / or cooling power. Alternatively or additionally, the temperature control unit of the X-ray device can be controlled during operation of the X-ray device based on the planning temperature in such a way that the temperature control unit controls the at least one component of the X-ray device to the predefined temperature or the predefined temperature range by providing the and / or cooling power.The actuation of the temperature control unit based on the planning temperature can comprise actuation of the heating element and / or of the cooling element based on the planning temperature, in particular at least partially simultaneously or successively. The predefined temperature may denote a target temperature, in particular a target temperature value, for the at least one component of the X-ray apparatus during the planned operation. The predefined temperature range may indicate a target temperature interval for the at least one component of the x-ray device during the scheduled operation. Advantageously, the temperature control unit, in particular the at least one cooling element, can be designed to remove a cooling capacity, in particular a first defined amount of heat per unit time, from the at least one component of the X-ray apparatus. Alternatively or additionally, the temperature control unit, in particular the at least one heating element, can be designed to provide a heating power, in particular a further defined amount of heat per unit time, to the at least one component of the X-ray apparatus. The temperature control unit of the X-ray apparatus can advantageously be controlled before and / or during operation of the X-ray apparatus on the basis of the planning temperature, for example by means of a processing unit, in such a way that the temperature control unit, in particular the at least one cooling element and / or the at least one heating element, temperature control, in particular cool or heat, the at least one component of the X-ray apparatus to the predefined temperature or the predefined temperature range by providing the heating and / or cooling power.The proposed method advantageously enables a pre-balancing regulation of the temperature control unit, in particular of the heating and / or cooling power to be provided, in order to avoid thermal over- and / or under-oscillations. Furthermore, by means of the proposed method, the at least one, in particular temperature-dependent, component of the X-ray apparatus, for example a sensor and / or an electronics module, can be more uniformly tempered, in particular cooled and / or heated, and thus more uniform output signals can be provided by the at least one component. Furthermore, thermal excursions can be reduced and temperature cycles for the at least one component, in particular the plurality of components, for example assemblies and / or connections, of the X-ray apparatus can be reduced, which can have a positive effect on a service life of the at least one component. A further advantage is that there is an adjustment of thermal states of the at least one component of the X-ray device during tuning and during a measurement operation, in particular during patient operation. This can result in an improved agreement of tuning tables for later operating states of the X-ray device, for example during clinical use of the X-ray device. Furthermore, due to the proposed improved temperature control of the at least one component of the X-ray apparatus, waiting times can be shortened by overheating of the at least one component; in particular, a post-cooling phase can be omitted or shortened.In a further advantageous embodiment of the proposed method, the X-ray device can comprise an X-ray source and an X-ray detector. The planning information can comprise at least one operating parameter of the X-ray source and / or of the X-ray detector. Advantageously, the planned operation of the X-ray device can comprise emitting X-rays by means of the X-ray source for illuminating the X-ray detector.Advantageously, the X-ray device can comprise an X-ray source and an X-ray detector, for example a flat detector or line detector, in particular a multi-line detector. In this case, the X-ray source can be designed to emit X-ray radiation for illuminating an X-ray-sensitive surface of the X-ray detector. The X-ray detector can be designed for, in particular photon-counting, detection of the X-ray radiation impinging on its X-ray-sensitive surface, in particular after fluoroscopic examination of an examination object to be imaged. Advantageously, the planning information can comprise at least one operating parameter, in particular a plurality of operating parameters, of the X-ray source and / or at least one operating parameter, in particular a plurality of operating parameters, of the X-ray detector.Advantageously, the planned operation of the X-ray device can comprise emitting X-rays for illuminating the X-ray sensitive surface of the X-ray detector, in particular according to the at least one operating parameter of the X-ray source and / or of the X-ray detector. Frequently, in x-ray devices, most of the power is introduced by the x-ray source, in particular an x-ray tube. On the basis of the at least one operating parameter of the X-ray source, points in time, a power quantity and / or an action duration of a tube power of the X-ray tube can be identified before the operation of the X-ray device. Furthermore, an expected combustion path temperature can be identified on the basis of the at least one operating parameter, for example by means of a tube load computer. Based on the focal path temperature, an expected waste heat and the planning temperature of the X-ray source can be identified. Based thereon, a required cooling power for tempering the X-ray source can be determined before operating the X-ray device. The temperature control unit can advantageously be controlled before and / or during operation of the X-ray apparatus on the basis of the planning temperature in such a way that a temperature increase of the X-ray source can be avoided and thermal over-oscillations can be significantly reduced.In a further advantageous embodiment of the proposed method, the X-ray device can comprise an X-ray source and an X-ray detector. The planning information can comprise at least one operating parameter of the X-ray source and / or of the X-ray detector. Furthermore, the X-ray source and the X-ray detector can be mounted movably, in particular rotatably, in a defined arrangement. In this case, the at least one operating parameter of the X-ray source and / or of the X-ray detector can comprise positioning information and / or movement information and / or information about a trajectory of the defined arrangement. Advantageously, a positioning-induced cooling power and / or heating power for the at least one component of the X-ray apparatus can furthermore be identified on the basis of the positioning information and / or the movement information and / or the information relating to the trajectory of the defined arrangement. In this case, the temperature control unit can additionally be controlled on the basis of the positioning-induced cooling power and / or heating power.Advantageously, the X-ray source and the X-ray detector can be arranged in a defined arrangement with respect to one another, for example on a common C-arm and / or a gantry. Furthermore, the defined arrangement of X-ray source and X-ray detector can be mounted movably, in particular rotatably and / or translationally. For example, the defined arrangement of X-ray source and X-ray detector can be arranged on a movable part of the X-ray apparatus, for example a rotor of a gantry, in particular integrated into the rotor. The gantry can comprise an annular structure, in particular a stator, and the rotor. The rotor can be mounted rotatably about an axis of rotation, in particular with respect to the stator. In this case, an examination object to be imaged, for example a patient and / or a patient and / or a phantom, can be arranged within an opening of the gantry, in particular between the X-ray source and the X-ray detector, for X-ray fluoroscopic purposes. X-ray fluoroscopy refers to emitting x-ray radiation by means of the x-ray source and detecting the x-ray radiation after interaction with the examination object by means of the x-ray detector.Advantageously, the at least one operating parameter of the X-ray source and / or of the X-ray detector can comprise positioning information and / or movement information and / or a trajectory of the defined arrangement. The positioning information can describe a spatial position and / or orientation and / or pose of the X-ray source and / or of the X-ray detector, in particular of the defined arrangement of X-ray source and X-ray detector. The movement information can describe a movement direction and / or movement speed and / or acceleration of the X-ray source and / or of the X-ray detector, in particular of the defined arrangement of X-ray source and X-ray detector. The information about the trajectory of the defined arrangement can describe a spatial path of positionings of the defined arrangement which are to be taken by the X-ray source and / or the X-ray detector, in particular a defined arrangement, at different points in time, for example in chronological sequence, during the planned operation of the X-ray device. Thus, the operating parameter, in particular the positioning information and / or the movement information and / or the information about the trajectory, can characterize a rotation state and / or a change of the rotation state of the defined arrangement of X-ray source and X-ray detector, for example of a gantry of a CT apparatus.Advantageously, based on the positioning information and / or the movement information and / or the information about the trajectory of the defined arrangement, a positioning-induced cooling power and / or heating power for the at least one component of the X-ray apparatus can be identified. For example, positioning the X-ray source and / or the X-ray detector relative to at least one further component of the X-ray device and / or an object can result in a positioning-induced heat transfer of the further component of the X-ray device and / or the object with the X-ray source and / or the X-ray detector. For example, the further component and / or the object can impede a heat transfer of the X-ray source and / or the X-ray detector with the temperature control unit. Alternatively or additionally, the further component and / or the object can transmit a quantity of heat to the X-ray source and / or the X-ray detector or vice versa. Advantageously, the positioning-induced cooling power and / or heating power provided thereby for the at least one component of the X-ray apparatus can be identified on the basis of the positioning information. Analogously, the positioning of the X-ray source and / or of the X-ray detector, in particular of the defined arrangement, along the trajectory can lead to a positioning-induced cooling capacity and / or heating capacity for the at least one component of the X-ray apparatus. Advantageously, the positioning-induced cooling power and / or heating power for the at least one component of the X-ray apparatus can be identified on the basis of the information about the trajectory defined arrangement.Furthermore, the movement of the X-ray source and / or of the X-ray detector, in particular a defined arrangement of X-ray source and X-ray detector, can result in a movement-induced cooling capacity and / or heating capacity. For example, the movement of the defined arrangement relative to an air flow, for example ambient air, can provide a cooling capacity to the X-ray source and / or the X-ray detector. The movement-induced cooling capacity can be dependent on a movement direction and / or a movement speed and / or an acceleration of the defined arrangement. Thus, the cooling capacity can be higher in the case of a fast movement, in particular fast rotation, of the defined arrangement than in the case of a comparatively slower movement, in particular slow rotation, or in a static state of the defined arrangement. Alternatively or additionally, a movement-induced heating power can occur due to the movement of the X-ray source and / or the X-ray detector, in particular the defined arrangement, for example resistance forces, in particular friction, counteracting the movement. Advantageously, the positioning-induced, in particular movement-induced, cooling capacity and / or heating line for the at least one component of the X-ray apparatus can be identified on the basis of the movement information.The identification of the positioning-induced cooling capacity and / or heating capacity can comprise, for example, a simulation and / or calculation, in particular based on a look-up table, based on the position information and / or the movement information and / or the information about the trajectory of the defined arrangement, and / or based on historical data about a positioning-induced cooling capacity and / or heating capacity for the at least one component of the X-ray apparatus.Advantageously, the temperature control unit can additionally be controlled on the basis of the positioning-induced cooling power and / or heating power, for example by means of the processing unit. In particular, the positioning-induced cooling power and / or heating power can be taken into account when actuating the temperature control unit to temperature the at least one component of the X-ray apparatus to the predefined temperature and / or the predefined temperature range. The operation of the X-ray device according to the operating parameter comprising the positioning information and / or the movement information and / or the information about the trajectory of the defined arrangement can comprise positioning and / or moving the defined arrangement, in particular with or without emitting X-rays by means of the X-ray source for illuminating the X-ray detector.In a further advantageous embodiment of the proposed method, the at least one operating parameter of the X-ray source can comprise a tube voltage and / or a tube power and / or a heating parameter and / or operating duration of the X-ray source. Alternatively or additionally, the at least one operating parameter of the X-ray detector can comprise a heating parameter of the X-ray detector.The proposed embodiment can advantageously enable precise identification of the at least one planning temperature of the X-ray source and / or of the X-ray detector on the basis of the at least one operating parameter.In a further advantageous embodiment of the proposed method, identifying the planning temperature can comprise a simulation of a temperature control of the at least one component of the X-ray apparatus based on the at least one operating parameter.Advantageously, identifying the planning temperature can comprise a simulation of the temperature control, in particular an autotemperation, of the at least one component of the X-ray device during the planned operation of the X-ray device based on the at least one operating parameter. The simulation can comprise, for example, a simulation based on a physical model of the at least one component and / or a simulation based on a numerical fluid dynamics (CFD). Advantageously, the planning temperature can be identified, in particular determined, on the basis of the simulation of the temperature control of the at least one component of the X-ray apparatus on the basis of the at least one operating parameter.For example, the X-ray device, in particular the at least one component of the X-ray device, can be stored as a digital twin, in particular virtual representation, for example in software and / or a computer program product. A temporal thermal development of the at least one component, in particular of the plurality of components, of the X-ray apparatus can additionally be simulated by means of the digital twin. On the basis of this simulation, optimum control, in particular regulation, of the temperature control unit for providing the heating and / or cooling power can then take place. This optimization can also be carried out by a learning algorithm, in particular an artificial intelligence, wherein respective conditions at the individual installation location of the X-ray apparatus can be taken into account. Advantageously, the simulation can take into account technical limit values of the at least one component, for example a maximum temperature, as a boundary condition for the optimization. This can prevent overheating, in particular tube overheating at the X-ray source of the X-ray device, for example.In a further advantageous embodiment of the proposed method, the temperature control unit can comprise at least one cooling element and / or at least one heating element. In this case, the at least one cooling element can be designed to dissipate a first defined amount of heat from the at least one component as cooling power. The at least one heating element can be designed to provide a further defined amount of heat to the at least one component as heating power. The temperature control of the at least one component of the X-ray apparatus can thereby comprise a removal of a first defined amount of heat from the at least one component by means of the at least one cooling element and / or a provision of a further defined amount of heat to the at least one component by means of the at least one heating element.The at least one cooling element can comprise, for example, a fan and / or a heat exchanger and / or an electrothermal converter. The at least one cooling element can be configured to remove the first defined amount of heat, in particular a first defined amount of heat per unit time, from the at least one component of the X-ray apparatus. The temperature control unit can comprise, for example, a cooling element which is designed to dissipate the first defined amount of heat, in particular the first defined amount of heat per unit time, from a plurality of components of the X-ray apparatus as cooling power. Alternatively, the temperature control unit can comprise a plurality of cooling elements which are designed to respectively dissipate a first defined amount of heat from in each case one of the plurality of components of the X-ray apparatus as cooling power. In particular, the temperature control unit can each comprise at least one cooling element for each of the plurality of components of the X-ray apparatus.The at least one, in particular optical and / or electrical and / or electromagnetic and / or chemical and / or mechanical, heating element can comprise, for example, a heating wire and / or a light source, in particular an infrared light source. The at least one heating element can be designed to provide the further defined amount of heat, in particular a further defined amount of heat per unit time, to the at least one component of the X-ray apparatus as heating power. The temperature control unit can comprise, for example, a heating element which is designed to provide the further defined amount of heat, in particular the further defined amount of heat per unit time, to a plurality of components of the X-ray apparatus as heating power. Alternatively, the temperature control unit can comprise a plurality of heating elements which are designed to provide the further defined amount of heat to one of the plurality of components of the X-ray apparatus as heating power in each case. In particular, the temperature control unit can each comprise at least one heating element for each of the plurality of components of the X-ray apparatus.The temperature control of the at least one component of the X-ray device can advantageously comprise a removal of a first defined amount of heat from the at least one component by means of the at least one cooling element and / or a provision of a further defined amount of heat to the at least one component of the X-ray device by means of the at least one heating element. The removal of the first defined amount of heat and the provision of the further defined amount of heat can be effected at least partially in chronological succession or simultaneously.For example, the cooling element may be configured to adjust the cooling power in a range of one to several minutes, while the heating element may be configured to adjust the heating power in a range of one to several seconds. In this case, the cooling power provided by the cooling element can be used for the coarse temperature control of the at least one component of the X-ray apparatus and the heating power provided by the heating element can be used for fine adjustment of the temperature control of the at least one component of the X-ray apparatus.In this way, thermal over- and / or under-oscillations of the temperature of the at least one component of the X-ray device can be advantageously reduced or avoided.In a further advantageous embodiment of the proposed method, the temperature control unit can comprise a fluid supply unit. The temperature control of the at least one component of the X-ray apparatus can thereby comprise a provision of a fluid by means of the fluid provision unit.The fluid supply unit can be designed to supply the fluid, in particular directly to the at least one component of the X-ray device or indirectly, for example to a fluid channel adjoining the at least one component of the X-ray device. The fluid supply unit can comprise, for example, a pump and / or a fan and / or a nozzle. The fluid can comprise, for example, a liquid, in particular water and / or oil, and / or a gas and / or a gas mixture, in particular air. The at least one component of the X-ray device can advantageously be in thermally conductive contact with the fluid provided. In this case, the fluid can be tempered by means of the tempering unit, in particular the cooling element and / or the heating element, to a further predefined temperature and / or a further predefined temperature range, before being provided. As a result, the fluid temperature-controlled to the further predefined temperature and / or the further predefined temperature range can come into heat-conducting contact with the at least one component of the X-ray apparatus. Heat can be transferred between the fluid and the at least one component of the X-ray device.The proposed embodiment can enable a particularly efficient temperature control of the at least one component of the X-ray apparatus.In a further advantageous embodiment of the proposed method, a momentary temperature of the at least one component can be detected by means of a sensor. In this case, the temperature control unit of the X-ray device can additionally be controlled on the basis of the instantaneous temperature of the at least one component of the X-ray device in order to provide the heating and / or cooling power.The sensor can comprise a temperature sensor, in particular an optical and / or electromagnetic and / or mechanical and / or chemical temperature sensor. Advantageously, the temperature sensor can be designed to record the instantaneous temperature of the at least one component of the X-ray device, in particular before the operation of the X-ray device. In particular, the temperature sensor can be designed to provide a signal as a function of the detected instantaneous temperature of the at least one component of the X-ray apparatus. The temperature sensor can advantageously be arranged on the at least one component of the X-ray device or can be integrated at least partially, in particular completely, into the at least one component of the X-ray device.Advantageously, the temperature control unit of the X-ray device can be controlled additionally on the basis of the instantaneous temperature of the at least one component of the X-ray device in order to provide the heating and / or cooling power. In particular, based on the instantaneous temperature of the at least one component detected, in particular before the operation of the X-ray device, a temperature difference between the predefined temperature or the predefined temperature range and the instantaneous temperature can be identified. In this case, the temperature control unit can be designed to adapt the heating and / or cooling power to be provided as a function of the identified temperature difference. For example, the at least one component of the X-ray device may have been heated to the current temperature by a pre-procedural operation, in particular before the method begins. As a result, the temperature difference between the predefined temperature or the predefined temperature range and the instantaneous temperature can be less in comparison with a preprocedural rest state of the X-ray apparatus. Advantageously, this difference in the temperature difference can be taken into account by means of the proposed embodiment during the temperature control of the at least one component of the X-ray apparatus by means of the temperature control unit.The proposed embodiment can advantageously enable a particularly precise temperature control of the at least one component of the X-ray apparatus.In a further advantageous embodiment of the proposed method, the planning information relating to a plurality of components of the X-ray device can each comprise at least one operating parameter for the planned operation of the X-ray device. In this case, a planning temperature for each of the plurality of components of the X-ray apparatus can be identified in each case on the basis of the operating parameter. In addition, the temperature control unit can control the temperature of the plurality of components of the X-ray apparatus to a predefined temperature or a predefined temperature range in each case by providing the heating and / or cooling power.Advantageously, the planning information relating to a plurality of components, in particular a plurality of different components, of the X-ray device can each comprise at least one, in particular a plurality of, operating parameters for the planned operation of the X-ray device.Advantageously, a planning temperature for each of the plurality of components of the X-ray apparatus can be identified in each case on the basis of the respective operating parameters or the plurality of operating parameters overall. The plurality of planning temperatures for the plurality of components of the X-ray apparatus can be at least partially, in particular completely, different or identical.Advantageously, the temperature control unit can control the plurality of components of the X-ray apparatus to the predefined temperature or a respective predefined temperature range by providing the heating and / or cooling power. The plurality of components of the X-ray apparatus can have different or identical predefined temperatures or predefined temperature ranges at least partially, in particular completely. The temperature control of the plurality of components of the X-ray apparatus can advantageously be effected hierarchically by means of the temperature control unit. At least one of the plurality of components of the X-ray apparatus, in particular a selected one of the plurality of components of the X-ray apparatus, can make a request for providing the heating and / or cooling power to the temperature control unit on the basis of its predefined temperature and / or its predefined temperature range. The temperature control unit can meet this requirement in a prioritized manner by providing the heating and / or cooling power compared to the remaining ones of the plurality of components of the X-ray apparatus.The proposed embodiment can enable an improved coordination of the temperature control of the plurality of components of the X-ray apparatus, in particular taking into account individual technical limit values of the respective components.In a second aspect, the invention relates to an, in particular medical, X-ray apparatus comprising a processing unit, an X-ray source, an X-ray detector and a temperature control unit. The X-ray source is configured to emit X-ray radiation. The X-ray detector is configured to detect the X-ray radiation. The temperature control unit is designed to provide a heating and / or cooling power to at least one component of the X-ray apparatus. The processing unit is configured to acquire planning information comprising at least one operating parameter of the at least one component of the X-ray device for a planned operation of the X-ray device. The processing unit is further configured to identify a planning temperature of the at least one component of the X-ray apparatus based on the at least one operating parameter. The processing unit controls the X-ray apparatus for operation in an operating state according to the at least one operating parameter. In the operating state, the processing unit controls the temperature control unit based on the planning temperature in such a way that the temperature control unit controls the at least one component of the X-ray apparatus to a predefined temperature or a predefined temperature range by providing a heating and / or cooling power.The advantages of the proposed X-ray device substantially correspond to the advantages of the proposed method for tempering an X-ray device. Features, advantages or alternative embodiments mentioned here can likewise also be transferred to the other claimed subject matters and vice versa.The X-ray device can advantageously be designed as a computed tomography device (CT device) and / or a C-arm X-ray device and / or an O-arm X-ray device.In a further advantageous embodiment of the proposed X-ray device, the X-ray source and the X-ray detector can be movably mounted in a defined arrangement. Furthermore, the planning information can comprise at least one operating parameter of the X-ray source and / or of the X-ray detector. In addition, the at least one operating parameter of the X-ray source and / or of the X-ray detector can comprise position information and / or movement information and / or information about a trajectory of the defined arrangement. The processing unit can be configured to identify a positioning-induced cooling power and / or heating power for the at least one component of the X-ray apparatus on the basis of the positioning information and / or the movement information and / or the information relating to the trajectory and to actuate the temperature control unit in the operating state additionally on the basis of the positioning-induced cooling power.In a further advantageous embodiment of the proposed X-ray apparatus, the temperature control unit can comprise a fluid supply unit which is designed for supplying a fluid. The temperature control unit can furthermore be designed to provide the heating and / or cooling power to the at least one component of the X-ray apparatus by means of a heat transfer between the at least one component and the fluid.In a further advantageous embodiment of the proposed X-ray apparatus, the temperature control unit can comprise a cooling element and / or a heating element. In this case, the cooling element can be designed to dissipate a first defined amount of heat from the at least one component as cooling power. The heating element can be designed to provide a further defined amount of heat to the at least one component as heating power. The temperature control unit can be configured to temperature control the at least one component of the X-ray apparatus by removing a first defined amount of heat from the at least one component by means of the cooling element and / or by providing a further defined amount of heat to the at least one component by means of the heating element.In a further advantageous embodiment of the proposed X-ray apparatus, the X-ray apparatus can furthermore comprise a sensor which is designed to record a momentary temperature of the at least one component of the X-ray apparatus. The processing unit can advantageously be designed to additionally actuate the temperature control unit in the operating state on the basis of the instantaneous temperature of the at least one component.In a third aspect, the invention relates to a computer program product having a computer program which can be loaded directly into a memory of a processing unit, having program sections in order to carry out all steps of a proposed method for tempering an X-ray apparatus when the program sections are executed by the processing unit.The computer program product can comprise software with source code that still has to be compiled and bound or only interpreted, or executable software code that only has to be loaded into the processing unit for execution. The computer program product enables the method for tempering an X-ray apparatus to be carried out quickly, identically repeatably and robust by means of a processing unit. The computer program product is configured such that it can carry out the method steps according to the invention by means of the processing unit.The computer program product is stored, for example, on a computer-readable storage medium or is stored on a network or server, from where it can be loaded into the processor of a processing unit, which can be directly connected to the processing unit or can be embodied as part of the processing unit. Furthermore, control information of the computer program product can be stored on an electronically readable data carrier. The control information of the electronically readable data carrier can be designed such that it carries out a method according to the invention when the data carrier is used in a processing unit. Examples of electronically readable data carriers are a DVD, a magnetic tape or a USB stick on which electronically readable control information, in particular software, is stored. When this control information is read from the data carrier and stored in a processing unit, all embodiments of the methods described above according to the invention can be carried out.A realization largely through software has the advantage that processing units already used up to now can be retrofitted in a simple manner by a software update in order to operate in the manner according to the invention. In addition to the computer program, such a computer program product can optionally include additional components such as documentation and / or additional components, as well as hardware components such as hardware keys (dongles, etc.) Use of the software may include.Exemplary embodiments of the invention are illustrated in the drawings and are described in more detail below. In different figures, the same reference numerals are used for the same features. The following are shown: FIGS. 1 to 3 are schematic representations of various advantageous embodiments of a proposed method for tempering an X-ray apparatus, FIG. 4 shows a schematic representation of an advantageous embodiment of a proposed X-ray apparatus.FIG. 1 shows a schematic representation of an advantageous embodiment of a proposed method for tempering an X-ray apparatus. In a first step, planning information CAP-PI comprising at least one operating parameter of at least one component of the X-ray device can be acquired for a planned operation of the X-ray device. In a further step, a planning temperature PT of the at least one component of the X-ray apparatus can be identified ID-PT on the basis of the at least one operating parameter. Advantageously, the identification ID-PT of the planning temperature PT can comprise a simulation of a temperature control of the at least one component of the X-ray apparatus based on the at least one operating parameter. In a further step, the X-ray apparatus can be operated OP-R according to the planning information Pl. In this case, a temperature control unit of the X-ray apparatus can be controlled CTRL-T before and / or during operation of the X-ray apparatus, in particular at least before the start of operation of the X-ray apparatus, on the basis of the planning temperature PT in such a way that the temperature control unit controls the at least one component of the X-ray apparatus to a predefined temperature or a predefined temperature range by providing a heating and / or cooling power.Advantageously, the X-ray device can comprise an X-ray source and an X-ray detector. The planning information Pl can comprise at least one operating parameter of the X-ray source and / or of the X-ray detector. Furthermore, the planned operation of the X-ray device can comprise emitting X-rays by means of the X-ray source for illuminating the X-ray detector. In this case, the at least one operating parameter of the X-ray source can comprise a tube voltage and / or tube power and / or a heating parameter and / or an operating duration of the X-ray source. Alternatively or additionally, the at least one operating parameter of the X-ray detector can comprise a heating parameter of the X-ray detector.Advantageously, the temperature control unit can comprise a cooling element and / or a heating element. In this case, the cooling element can be designed to dissipate a first defined amount of heat from the at least one component as cooling power. Furthermore, the heating element can be designed to provide a further defined amount of heat to the at least one component as heating power. In this case, the temperature control of the at least one component of the X-ray apparatus can comprise a removal of a first defined amount of heat from the at least one component by means of the cooling element and / or a provision of a further defined amount of heat to the at least one component by means of the heating element. In particular, the temperature control unit can comprise a fluid supply unit. The temperature control of the at least one component of the X-ray apparatus can thereby comprise a provision of a fluid by means of the fluid provision unit. Heat can be transferred between the at least one component and the fluid.Advantageously, the planning information relating to a plurality of components of the X-ray device can each comprise at least one operating parameter for the planned operation of the X-ray device. In this case, a planning temperature for each of the plurality of components of the X-ray apparatus can be identified ID-PT on the basis of the operating parameters. Furthermore, the temperature control unit can control the temperature of the plurality of components of the X-ray apparatus to a predefined temperature or a predefined temperature range in each case by providing the heating and / or cooling power.FIG. 2 shows a schematic representation of a further advantageous embodiment of a proposed method for tempering an X-ray apparatus. In this case, the X-ray source and the X-ray detector can be mounted movably, in particular rotatably, in a defined arrangement. In this case, the at least one operating parameter of the X-ray source and / or of the X-ray detector can comprise positioning information and / or movement information and / or information about a trajectory of the defined arrangement. Furthermore, a positioning-induced cooling power and / or heating power KL for the at least one component of the X-ray apparatus can be identified ID-KL on the basis of the positioning information and / or the movement information and / or the information relating to the trajectory. In this case, the temperature control unit can additionally be controlled CTRL-T on the basis of the positioning-induced cooling power and / or heating power KL.FIG. 3 shows a schematic representation of a further advantageous embodiment of a proposed method for tempering an X-ray apparatus. In this case, a momentary temperature T of the at least one component can be detected DET-T by means of a sensor. The temperature control unit of the X-ray device can advantageously be controlled additionally on the basis of the instantaneous temperature of the at least one component of the X-ray device in order to provide the heating and / or cooling power.FIG. 4 shows a schematic representation of an advantageous embodiment of a proposed X-ray apparatus as a medical CT apparatus 33. The CT apparatus 33 can comprise the X-ray source 37, the X-ray detector 1 and a processing unit PRVS. In this case, the X-ray source 37 and the X-ray detector 1 can be arranged opposite one another. The X-ray source 37 can be configured to emit X-ray radiation. In particular, the X-ray source 37 can be configured to expose the X-ray detector 1 to X-ray radiation along an X-ray incident direction. The X-ray detector 1 may comprise a direct-converting (semiconductor) light-emitting layer. In this case, the X-ray detector layer can have, for example, CdTe, CdCdTe, CdTeSe, CdCdTeSe or CdCdTe as semiconductor material. The X-ray detector layer can also comprise a layer with analog-to-digital converters, on which the X-ray detector layer is applied, wherein the A / D converter layer can be realized in one or more ASICs. The X-ray detector 1 can be configured to detect the X-ray radiation.The CT apparatus 33 can also comprise a gantry 32 with a rotor 35. The X-ray source 37 and the X-ray detector 1 can be arranged on the rotor 35 in a defined arrangement, in particular integrated into the rotor 35 or fastened to the rotor 35. The rotor 35 can be mounted rotatably about an axis of rotation 43. The examination object 39 to be imaged can be mounted on the patient support device 41 and can be moved along the rotational axis 43 through the gantry 32. The processing unit PRVS can be used to control the CT device 33 and to calculate sectional images or volume images of the examination object 39. Advantageously, the processing unit PRVS can be configured to acquire CAP-PI the planning information Pl comprising the at least one operating parameter of the at least one component of the CT device 33 for the planned operation of the CT device 33. The processing unit PRVS may be further configured to identify ID-PT the scheduling temperature PT of the at least one component of the CT device 33 based on the at least one operating parameter.The CT apparatus 33 can further comprise the temperature control unit TE. The temperature control unit TE can be designed to provide heating and / or cooling power to at least one component of the CT device 33. Advantageously, the processing unit PRVS can control the CT device 33 for operation OP-R in an operating state according to the at least one operating parameter. In the operating state, the processing unit PRVS can actuate the temperature control unit TE based on the planning temperature PT CTRL-T in such a way that the temperature control unit TE controls the at least one component of the X-ray apparatus to a predefined temperature or a predefined temperature range by providing a heating and / or cooling power.An input device 47, for example a keyboard, and an output device 49, for example a screen and / or display, can be connected to the processing unit PRVS, in particular coupled by signal technology. The input device 47 can advantageously be integrated into the output device 49, for example in the case of an, in particular resistive and / or capacitive, input display.Advantageously, the planning information PI can comprise at least one operating parameter of the X-ray source 37 and / or of the X-ray detector 1. In this case, the at least one operating parameter of the X-ray source 37 and / or of the X-ray detector 1 can comprise positioning information and / or movement information and / or information about a trajectory of the defined arrangement. Furthermore, the processing unit PRVS can be designed to identify an ID-KL and the temperature control unit TE in the operating state additionally based on the positioning-induced cooling power and / or heating power CTRL-T for the at least one component of the CT device 33 based on the movement information and / or the information about the trajectory.Advantageously, the temperature control unit TE can further comprise a fluid supply unit (not shown here) which is designed for supplying a fluid. In this case, the temperature control unit TE can be designed to provide the heating and / or cooling power to the at least one component of the CT apparatus 33 by means of a heat transfer between the at least one component and the fluid.The temperature control unit TE can further comprise a cooling element KE and / or a heating element HE. The cooling element KE can be designed to remove a first defined amount of heat from the at least one component as cooling power. Furthermore, the heating element HE can be designed to provide a further defined amount of heat to the at least one component as heating power. The temperature control unit TE can be configured to temperature control the at least one component of the CT device 33 by removing a first defined amount of heat from the at least one component by means of the cooling element KE and / or by providing a further defined amount of heat to the at least one component by means of the heating element HE.The CT device 33 can advantageously further comprise a sensor S which is designed to detect a current temperature T of the at least one component of the CT device CAP-T. In this case, the processing unit PRVS can furthermore be designed to additionally actuate the temperature control unit TE in the operating state based on the instantaneous temperature T of the at least one component CTRL-T.The schematic representations contained in the described figures do not depict any scale or size relationships.Finally, it is pointed out once again that the methods described in detail above and the devices illustrated are merely exemplary embodiments which can be modified in a wide variety of ways by the person skilled in the art without departing from the scope of the invention. Furthermore, the use of the indefinite article "a" or "an" does not exclude that the features in question can also be present multiple times. Likewise, the terms "unit" and "element" do not exclude that the components in question consist of a plurality of interacting part-components, which may optionally also be spatially distributed.The expression "based on" can be understood in the context of the present application in particular in the sense of the expression "using". In particular, a formulation that is created (alternatively: determined, determined, etc.) according to a first feature based on a second feature does not exclude that the first feature can be created (alternatively: determined, determined, etc.) based on a third feature.

Claims

Method for tempering an X-ray apparatus, comprising: - acquiring (CAP-PI) planning information (PI) comprising at least one operating parameter of at least one component of the X-ray apparatus for planned operation of the X-ray apparatus, - identifying (ID-PT) a planning temperature (PT) of the at least one component of the X-ray apparatus on the basis of the at least one operating parameter, - operating (OP-R) the X-ray apparatus according to the planning information (PI), wherein a tempering unit (TE) of the X-ray apparatus is controlled (CTRL-T) in such a way before and / or during operation of the X-ray apparatus on the basis of the planning temperature (PT), the temperature control unit (TE) controls the at least one component of the X-ray apparatus to a predefined temperature or a predefined temperature range by providing a heating and / or cooling power.Method according to claim 1, wherein the X-ray device comprises an X-ray source (37) and an X-ray detector (1), wherein the planning information (PI) comprises at least one operating parameter of the X-ray source (37) and / or of the X-ray detector (1), wherein the planned operation of the X-ray device comprises emitting X-rays by means of the X-ray source (37) for illuminating the X-ray detector (1).Method according to claim 1 or 2, wherein the X-ray device comprises an X-ray source (37) and an X-ray detector (1), wherein the planning information (PI) comprises at least one operating parameter of the X-ray source (37) and / or of the X-ray detector (1), wherein the X-ray source (37) and the X-ray detector (1) are mounted movably, in particular rotatably, in a defined arrangement, wherein the at least one operating parameter of the X-ray source (37) and / or of the X-ray detector (1) comprises a positioning information item and / or a movement information item and / or a trajectory of the defined arrangement, wherein furthermore a positioning-induced cooling power and / or heating power (KL) for the at least one component of the X-ray device is identified (ID-KL) on the basis of the positioning information item and / or the movement information item and / or the trajectory, wherein the temperature control unit (TE) is additionally controlled (CTRL-TE) on the basis of the positioning-induced cooling power and / or heating power (KL).Method according to one of claims 2 or 3, wherein the at least one operating parameter of the X-ray source (37) comprises a tube voltage and / or tube power and / or a heating parameter and / or an operating duration of the X-ray source (37) and / or wherein the at least one operating parameter of the X-ray detector (1) comprises a heating parameter of the X-ray detector (1).Method according to one of the preceding claims, wherein the identification (ID-PT) of the planning temperature (PT) comprises a simulation of a temperature control of the at least one component of the X-ray apparatus based on the at least one operating parameter.Method according to one of the preceding claims, wherein the temperature control unit (TE) comprises a cooling element (KE) and / or a heating element (HE), wherein the cooling element (KE) is designed to dissipate a first defined amount of heat from the at least one component as cooling power, wherein the heating element (HE) is designed to provide a further defined amount of heat to the at least one component as heating power, wherein the temperature control of the at least one component of the X-ray apparatus comprises a dissipation of a first defined amount of heat from the at least one component by means of the cooling element (KE) and / or a provision of a further defined amount of heat to the at least one component by means of the heating element (HE).Method according to one of the preceding claims, wherein the temperature control unit (TE) comprises a fluid supply unit, wherein the temperature control of the at least one component of the X-ray apparatus comprises a supply of a fluid by means of the fluid supply unit, wherein heat is transferred between the at least one component and the fluid.Method according to one of the preceding claims, wherein a current temperature (T) of the at least one component is detected (CAP-T) by means of a sensor (S), wherein the temperature control unit (TE) of the X-ray device is additionally controlled (CTRL-TE) on the basis of the current temperature (T) of the at least one component of the X-ray device in order to provide the heating and / or cooling power.Method according to one of the preceding claims, wherein the planning information (PI) relating to a plurality of components of the X-ray apparatus comprises in each case at least one operating parameter for the planned operation of the X-ray apparatus, wherein in each case a planning temperature (PT) for each of the plurality of components of the X-ray apparatus is identified (ID-PT) on the basis of the operating parameters, wherein the temperature control unit (TE) controls the plurality of components of the X-ray apparatus to a predefined temperature or a predefined temperature range in each case by providing the heating and / or cooling power.X-ray device, comprising a processing unit (PRVS), an x-ray source (37), an x-ray detector (1) and a temperature control unit (TE), wherein the x-ray source (37) is configured to emit x-ray radiation, wherein the x-ray detector (1) is configured to detect the x-ray radiation, wherein the temperature control unit (TE) is configured to provide a heating and / or cooling power to at least one component of the x-ray device, wherein the processing unit (PRVS) is configured to acquire (CAP-PI) a planning information item (PI) comprising at least one operating parameter of the at least one component of the x-ray device for a planned operation of the x-ray device, wherein the processing unit (PRVS) is further configured to identify (ID-PT) a planning temperature (PT) of the at least one component of the X-ray apparatus based on the at least one operating parameter, wherein the processing unit (PRVS) controls (OP-R) the X-ray apparatus to operate in an operating state according to the at least one operating parameter, wherein in the operating state the processing unit (PRVS) controls (CTRL-TE) the temperature control unit (TE) based on the planning temperature (PT) such that the temperature control unit (TE) controls the at least one component of the X-ray apparatus to a predefined temperature or a predefined temperature range by providing a heating and / or cooling power.X-ray apparatus according to claim 10, wherein the x-ray source (37) and the x-ray detector (1) are movably mounted in a defined arrangement, wherein the planning information (PI) comprises at least one operating parameter of the x-ray source (37) and / or of the x-ray detector (1), wherein the at least one operating parameter of the x-ray source (37) and / or of the x-ray detector (1) comprises positioning information and / or movement information and / or information about a trajectory of the defined arrangement, wherein the processing unit (PRVS) is configured to, identifying a positioning-induced cooling capacity and / or heating capacity (KL) for the at least one component of the X-ray apparatus based on the positioning information and / or the movement information and / or the information about the trajectory (ID-KL) and additionally controlling the temperature control unit (TE) in the operating state based on the positioning-induced cooling capacity and / or heating capacity (KL) (CTRL-TE).The X-ray apparatus according to claim 10 or 11, wherein the temperature control unit (TE) comprises a fluid supply unit which is configured to supply a fluid, wherein the temperature control unit (TE) is configured to supply the heating and / or cooling power to the at least one component of the X-ray apparatus by means of a heat transfer between the at least one component and the fluid.The X-ray apparatus according to any one of claims 10 to 12, wherein the temperature control unit (TE) comprises a cooling element (KE) and / or a heating element (HE), wherein the cooling element (KE) is configured to remove a first defined amount of heat from the at least one component as cooling power, wherein the heating element (HE) is configured to provide a further defined amount of heat to the at least one component as heating power, wherein the temperature control unit (TE) is configured to temperature control the at least one component of the X-ray apparatus by removing a first defined amount of heat from the at least one component by means of the cooling element (KE) and / or by providing a further defined amount of heat to the at least one component by means of the heating element (HE).The X-ray apparatus according to any one of claims 10 to 13, further comprising a sensor (S) which is configured to detect (CAP-T) a current temperature (T) of the at least one component of the X-ray apparatus, wherein the processing unit (PRVS) is configured to additionally control (CTRL-TE) the temperature control unit (TE) in the operating state based on the current temperature (T) of the at least one component.Computer program product comprising a computer program which can be loaded directly into a memory of a processing unit (PRVS), comprising program sections for executing all the steps of the method according to one of Claims 1 to 9 when the program sections are executed by the processing unit (PRVS).

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