Ion beam radiation field simulation parallel light field indication device and method

A technology of pointing device and parallel light, which is applied in the field simulation field of ion beam distribution system, can solve the problem that the light source pointing system cannot read multi-leaf grating data files in real time, and achieve good monochromaticity, small divergence, and good pointing precise and fast results

Active Publication Date: 2015-02-11
INST OF MODERN PHYSICS CHINESE ACADEMY OF SCI
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Problems solved by technology

It can also solve the technical problem that the light source indicating system in the electronic linear accelerator of conventional radiation therapy cannot read the irradiation field data file and the multi-leaf grating data file in the irradiation control system in real time

Method used

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  • Ion beam radiation field simulation parallel light field indication device and method
  • Ion beam radiation field simulation parallel light field indication device and method
  • Ion beam radiation field simulation parallel light field indication device and method

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Embodiment Construction

[0033] Below in conjunction with the best examples shown in the accompanying drawings for further details:

[0034] Such as figure 1 and 2 As shown, the parallel optical field indicating device for simulating the ion beam field is characterized in that it includes a rotating base 1, a translation base 2 is installed on the rotation base 1, and a relative movement is arranged on the translation base 2. Two groups of parallel-beam laser pointing units; the parallel-beam laser pointing unit is a matrix structure formed by a plurality of servo motor drivers 3 connected to laser light sources 4 and closely spaced and closely arranged laser pointing bars, and the laser light sources 4 are installed on the servo motor drivers 3. At the front end, a single laser light source is driven laterally by a servo motor driver to reach the intersection point of the irradiation field contour and the motion route. The laser light source 4 longitudinally emits laser lines to indicate along the b...

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Abstract

The invention relates to the technical field of radiation field simulation in ion beam distribution systems, in particular to an ion beam radiation field simulation parallel light field indication device and a an ion beam radiation field simulation parallel light field indication method. The device is characterized by comprising a rotating base, a translation pedestal and two groups of parallel beam laser indication units, wherein the parallel beam laser indication units are arranged on the translation pedestal, and can move relative to each other; each parallel beam laser indication unit is of a matrix structure formed by closely arranging a plurality of laser indication bars at an equal interval, and the laser indication bars are formed by connecting servo motor drivers with laser light sources; a single laser light source is transversely driven by the corresponding servo motor driver to reach an intersection of a radiation field outline and a movement path, and longitudinally emits a laser ray for indication along a beam direction, so that the two groups of laser indication units drive the laser light sources to simulate the radiation field outline, i.e. a light field, in a dot matrix mode according to equally-spaced sampling points of the radiation field outline. The device and the method have a radiation field laser indication and distance measurement functions, and also have a function of actively sketching a specific tumor target outline of a patient.

Description

technical field [0001] The invention relates to the technical field of field simulation in ion beam distribution systems, in particular to a parallel light field indicating device and method for simulating ion beam fields. Background technique [0002] Conventional X-ray radiation therapy needs to generate an X-ray irradiation field at a certain distance from the X-ray source in order to perform radiation therapy on tumors of a certain size and shape in the patient's body. The outline of the irradiation field defines the range of radiation. If the range specified by the machine is inconsistent with the actual range of irradiation, some parts of the target area will be missed for irradiation, and in serious cases, nearby vital organs can still be irradiated. The medical electron linear accelerator indicates the scope of the irradiation field by simulating the light field. When positioning a patient for radiation therapy, the light field is usually used to determine the irrad...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61N5/10
Inventor 戴中颖李强贺鹏博刘新国申国盛马圆圆黄奇艳闫渊林肖国青
Owner INST OF MODERN PHYSICS CHINESE ACADEMY OF SCI
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