39 results about "Readout electronics" patented technology

Collected light may be split into fields using grazing incidence mirrors to avoid illuminating gaps between the active areas for readout electronics. The grazing incidence mirrors may reduce lost field space in the integrating direction by splitting the imaging field in that direction to allow the readout electronics to be outside of the field. The fields may be split so there is space for readout circuits but no associated light on the readout circuits. The size of the illumination may then be decreased and / or the number and / or size of sensors increased to improve the photon collection efficiency. The better photon collection efficiency may reduce shot noise and / or improves tool throughput.

The application discloses a target channel selection output method and system for frequency division multiplexing superconducting detectors, and belongs to the technical field of digital signal processing and superconducting detector readout electronics. The method aims at the problems of high resolution channelization resource occupation, high full spectrum output bandwidth pressure, and obvious spectrum leakage and crosstalk under high multiplexing ratio. On the basis of high resolution channelization processing, the mapping relationship between target frequency points and channels and the target channel selection output mechanism are introduced. After the wideband digital input signal is processed by the polyphase filter bank channelization, only the complex data corresponding to the target frequency points containing effective signals are selected and output, and are further separated into I / Q data stream output. The scheme combines high resolution channelization processing with the mapping driven selection output mechanism, reduces resource occupation and data transmission bandwidth while ensuring frequency resolution, and improves real-time performance and signal fidelity in the readout scene of high multiplexing ratio detectors.

The application discloses a thin film thickness measuring device and method based on a pixel array type silicon detector, and relates to the technical field of thin film thickness detection.The thin film thickness measuring device based on the pixel array type silicon detector comprises an X-ray generator, a thin film fixing module, a pixel array type silicon detector, readout electronics and an upper computer.The thin film fixing module is used for fixing a to-be-detected thin film.The X-ray generator is used for generating X-rays.The X-rays pass through the to-be-detected thin film and irradiate on the pixel array type silicon detector.The pixel array type silicon detector is used for converting the X-rays into electric signals.The readout electronics is used for conditioning the electric signals to obtain conditioned signals.The upper computer is used for determining a corresponding X-ray energy spectrum according to the conditioned signals, and determining the thickness distribution of each thin film in the to-be-detected thin film according to the X-ray energy spectrum.The application can realize high-precision measurement of the thin film thickness in a simple and fast manner.

The invention relates to the technical field of neutron detection, in particular to a neutron detector technology based on combination of domestic 3He gas and a self-developed ceramic gas electron multiplier (GEM). Comprising a high-pressure 3He mixed gas working chamber with the inflation pressure not lower than 6 atm; the high-temperature-resistant ceramic GEM membrane is prepared by adopting a mechanical drilling technology, the hole precision uniformity is less than or equal to 10 microns, and the temperature resistance is more than or equal to 150 DEG C; the two-dimensional reading plate adopts a flexible polyimide base material, the strip width is 0.7-0.8 mm, and the number of channels is greater than or equal to 512; the cascaded GEM amplification structure comprises 2-3 layers of ceramic GEM films, and the gain of a single layer is 50-100 times; a special ASIC-FPGA mixed readout electronics system is characterized in that a high-pressure 3He gas working medium and a high-temperature-resistant ceramic GEM structure are creatively fused, and a large-area GEM preparation process, a high-pressure 3He gas sealing and purifying technology and a special high-speed readout electronics system are combined; and breakthrough improvement of core performance indexes such as detection efficiency, counting rate, spatial resolution and gamma suppression capability of the neutron detector is realized.

Neutron-induced radiation detectors (NiRDs) and radiation dosimetry systems containing the same are described. Examples of NiRDs can include numerous components based on location, function, dimension, and / or constituent materials. A NiRD can be configured to directly measure an absorbed dose (or rate) of particular ionizing reaction products induced by neutrons. The NiRD can utilize various detection schemes for measuring the deposited energy of the reaction products, such as gaseous ionization, semiconducting, scintillating, or homogenous versions of these detection schemes. The NiRD can measure the deposited energy of the reaction products in forward emission, backward emission, or both. Examples of radiation dosimetry systems can include one or more NiRDs, a gamma ray detector, and readout electronics coupled to each of the radiation detectors. Example implementations of the radiation dosimetry systems are described for determining an equivalent dose (or rate) of a neutron beam generated for boron neutron capture therapy (BNCT).

An electronic readout network topology for positron emission tomography is able to provide Time of Flight for photodetectors arranged in matrix arrays made up of a plurality of silicon photomultipliers. Each photodetector has anode and cathode terminals. The readout network topology ensures suitable polarisation of the set of photodetectors and provides a reduction diagram by creating a single connection to extract a unique time reference signal that is accurate and synched up in phase to a detection event at any position of the photodetector matrix instead of connecting to each individual photodetector. A fast amplifier with low input impedance is electrically coupled to this time reference signal, creating a path of low impedance for the rapid transition signals, reducing the total parasitic capacitance of the parallel arrangement of detectors, and improving the time response of the detector block. Moreover, the readout electronics creates a smaller number of positioning signals.

The utility model discloses a double-spacing integrated gamma detector and a logging instrument, and relates to the field of uranium exploration logging. The detector comprises a shell, a double-probe assembly and a readout electronics module, wherein the double-probe assembly is composed of a near-spacing probe and a far-spacing probe; the near source distance probe and the far source distance probe are fixedly arranged in the shell at an interval and are both arranged to be radiation-resistant scintillation crystals connected with photoelectric converters; a central cavity is defined between the near source spacing probe and the far source spacing probe as well as the inner wall surface of the shell, and the readout electronics module is integrally arranged in the central cavity; the inner wall surface of the shell is coated with a shielding layer; according to the detector, the spatial multiplexing architecture is combined with mechanical rigid fixation, so that the structure is compact, the source distance offset is eliminated, and the measurement reliability is improved.

The application discloses a kind of metal halogen perovskite-based neutron multiplicity measuring device and method, the device includes: shell, the shell is used to install and protect other components of the measuring device;Radiation detection module is arranged in the shell, and the radiation detection module is mainly composed of perovskite material and photomultiplier tube etc.;Shielding unit is arranged in the shell and located at the side and bottom of the perovskite scintillator, for reducing gamma-ray background;And, readout electronics module is arranged in the shell, and the readout electronics module is used to read the electrical signal generated by the photomultiplier tube and convert it into digital signal output.The application can realize the effective discrimination of neutron and gamma, so as to accurately deduct the influence of gamma-ray background, improve the sensitivity of fast neutron measurement.

A flexible digital radiographic detector assembly includes a flexible sleeve enclosing a photosensor array supported by a flexible substrate. Integrated circuit readout electronics are coupled to the photosensor array. The digital radiographic detector assembly communicates with a local computer system or with a cloud server to transmit image data captured in the photosensor array, to display the image data on a screen, and to analyze defects that may be present in the image.

The present application relates to a kind of readout electronics circuit system of crossing radiation detector, cooperative working method, equipment and medium, comprising: four first connectors, for receiving the analog charge signal and air temperature air pressure digital signal output by crossing radiation detector;Four ESD protection circuits are used to provide ESD protection;Four SAMPA chips are used to obtain digitized scientific data;An environmental monitoring module is used to monitor the environmental parameter value of readout electronics circuit system;A FPGA module is used to process the air temperature air pressure digital signal of crossing radiation detector, the environmental parameter value of readout electronics circuit system, the state parameter of FPGA module, digitized scientific data;A first hardware interface is used to receive serial data instruction and trigger signal;A second hardware interface is used to send the processed scientific data and clock signal to back-end summary electronics, the present application can be widely applied in high-energy particle detection technology field.

This invention belongs to the field of gamma imaging technology, specifically relating to a gamma ray localization method based on a planar scintillator. The method includes the following steps: performing multi-point calibration tests on the direction and orientation of the planar scintillator using a collimated gamma ray source; calculating a normalized ratio variable; using the least squares method to fit the normalized ratio variable to a known incident position to obtain the key parameters in the two-dimensional coordinate calculation formula; training a neural network model based on a dataset; and for the gamma ray deposition location to be measured, performing rapid position calculation using the two-dimensional coordinate calculation formula, or performing high-precision position prediction using the neural network model. This invention significantly reduces the number of photoelectric readout devices and readout electronics channels while maintaining good position and energy resolution performance, thereby effectively reducing system costs. It has promising application prospects in large-area gamma imaging, radiation monitoring, and related engineering applications.

An X-ray detector for a computed tomography (CT) imaging system is provided. The X-ray detector includes a plurality of detector modules. Each detector module of the plurality of detector modules includes a scintillator layer configured to convert X-ray photons into lower energy light photons. Each detector module of the plurality of detector modules also includes a light imager layer configured to convert the light photons into electrons, wherein the light imager layer includes a light imager panel comprising an array of photodiodes. Each detector module of the plurality of detector modules further includes a readout device that converts the electrons into digitized pixel values, wherein each photodiode of the array of photodiodes is coupled to a respective dedicated readout channel of the readout device via a respective dedicated data line, and the readout device is configured to continuously directly readout the electrons from the array of photodiodes.

A computed tomography (CT) imaging system includes a detector array configured to detect X-ray projections. The detector array includes a semiconductor sensor array having a plurality of sensors. Each sensor includes a first surface, a second surface, a substrate, and a readout electronics unit. The first surface has a high-voltage bias and includes a first dopant and can receive the X-ray projections. The second surface is opposite the first surface and includes a plurality of sensing regions of a second dopant. The second surface has a low-voltage bias and is configured to collect charges from the X-ray projections. The substrate includes a semiconductor material with a resistivity of at least five kiloohm centimeters and is positioned between the first and second surfaces. The readout electronics unit is positioned between the sensing regions. A surface area of the readout electronics unit is less than one percent of the second surface.

The application discloses a kind of extraction and error correction methods for evaluating the sampling rate of pulse waveform measurement system, to sample rate f0 The output waveform of detector is sampled, and high sampling rate original waveform is obtained;According to the target sampling rate set, select multiple extraction ratios, based on different starting points, perform multiple sets of extraction operations with the same ratio on the original waveform, and expand to obtain multiple sets of waveforms with uniformly distributed sampling phases;According to the application scenario, select and calculate the evaluation parameter σ;According to the amplitude distribution estimation error caused by the correlation between waveforms during the extraction process, introduce the correction factor p To modify the evaluation parameter;The contribution ratio of the error caused by the correlation between waveforms to the evaluation parameter is further modified to the evaluation parameter σ, to realize the accurate evaluation of waveform measurement system.The method can greatly reduce the research and development cost and cycle of multi-channel readout electronics, and the uniform sampling phase can effectively avoid random error.

A flexible digital radiography detector assembly includes a flexible sleeve enclosing an array of photosensors supported by a flexible substrate. Integrated circuit readout electronics are coupled to the array of photosensors and to a circuit board having conductive contacts. The contacts engage a handheld readout electronics cartridge to initiate reading of image data captured in the array of photosensors and to display the image data on a screen in the readout electronics cartridge.

Methods and systems are provided for repairing a defective segment of a sensor array of a photon counting detector of a photon counting computed tomography (PCCT) imaging system. In one example, a method for a PCCT imaging system comprises dividing a segment of the sensor array into a plurality of sub-segments, wherein each sub-segment of the plurality of sub-segments is electrically coupled to a readout electronics, the readout electronics configured to calculate a photon count for the segment; generating a total photon count for the divided segment based on combined electrical signals produced at each sub-segment of the divided segment; and reconstructing an image based on the total photon count at the divided segment. A defect detected in the divided segment may be traced to a defective sub-segment, which may be isolated from the readout electronics, thereby increasing a quality of the reconstructed image.

This document discloses system and method embodiments for measuring shear forces at fixation points of textile-based implants. A system for supporting tissue includes two or more sensor assemblies (110), each sensor assembly (110) including a base portion (116) configured to be anchored in tissue (120), a beam (114) extending away from the base portion (116) toward an attachment surface (112), and a sensor (130) attached to the beam (114) and configured to measure a force applied to the beam (114). The system further includes a mesh (102) configured to be disposed adjacent to the tissue (120), the mesh (102) configured to attach to the attachment surface (112) of each of the sensor assemblies (110) such that mesh tension applies a shear force to the attachment surface (112) of a sensor assembly (110). The system further includes readout electronics configured to receive force information from each sensor assembly (110).

The present application relates to the field of particle physics experiment data acquisition and processing, and specifically discloses an online AI triggering and data compression method and device for particle detector readout electronics, wherein the method realizes real-time feature extraction on the output pulse signal of the detector, uses a pre-trained fully connected neural network model to realize high-precision triggering decision, adopts a compression strategy combining adaptive quantization and entropy coding to compress effective event data, and simultaneously introduces a quality feedback mechanism based on peak signal-to-noise ratio to form a closed-loop control. The present application realizes intelligent collaborative processing of triggering decision and data compression, significantly improves the event selection efficiency and data compression quality under the premise of ensuring data physical integrity, and provides an efficient real-time data processing solution for high-count-rate particle physics experiments.

A hyperspectral infrared imaging system includes optical components, multi-color focal plane array or arrays, readout electronics, control electronics, and a computing system. The system measures a limited number of spatial and spectral points during image capture and the full dataset is computationally generated.

The application relates to the technical field of readout electronics, and discloses a phased array system readout electronics platform and method, wherein the platform comprises: a radio frequency acquisition module configured to convert spatial electromagnetic waves into radio frequency acquisition signals; a digital receiving module comprising a time-frequency management unit and at least one signal processing unit, the time-frequency management unit is configured to send a clock output signal and a timing control pulse signal to each signal processing unit respectively, so that each signal processing unit synchronously analyzes the timing control pulse signal according to the clock output signal and performs coarse channel processing on the radio frequency acquisition signals to obtain multiple channel signals; and a backend readout module configured to generate astronomical observation data according to the channel signals. The application precisely controls the clock output signal and the timing control pulse signal to ensure the consistency and synchronization of the processing processes of the signal processing units, and simultaneously reduces the data processing pressure by means of coarse channelization processing, thereby effectively reducing the system power consumption.

This invention discloses a method for generating simulated signals for a position-sensitive 3He tube neutron detector. The method obtains the random distribution function of the total pulse amplitude of a single particle impact, the random distribution function of the time interval between neutron impacts on the detector, and the random position distribution function of the neutron impact on the 3He tube. Based on these functions, the invention constructs digital waveform pulses of the signals at both ends of the 3He tube. These digital waveform pulses are then converted into two real pulse signals via two DACs. Furthermore, these two pulse signal sources are simulated signal sources capable of containing energy, time, and position distribution information for neutron detection by a position-sensitive 3He tube neutron detector. This invention will greatly contribute to the development of corresponding readout electronics, particularly in the fields of position measurement algorithm optimization and position measurement accuracy calibration.

A device for protection against electrostatic discharge in electric, electronic and optoelectronic components, in particular those which are present in the form of printed components. This relates, for example, to components from the field of flexible electronics, such as e.g. touch screens, multi-touch screens, displays and other input and output devices which are touched by the user and comprise read-out electronics, circuits, in particular printed circuits, and / or sensors. Through the provision of simple discontinuities and / or exposure of certain points or areas of the dissipative structures of an electric, electronic and / or optoelectronic component, an electrostatic discharge taking place is directed thereto, and thus a random electrostatic discharge with expected damage to the layer electrode(s) of the component can be prevented.

The application discloses a kind of orthogonal strip CZT detector module and method for particle therapy range and dose monitoring, orthogonal strip CZT detector module includes orthogonal strip CZT detector, signal front-end electronics circuit, channel compression circuit;Anode electrode and cathode electrode in orthogonal strip CZT detector are long strip and mutually orthogonal setting;Channel compression circuit reduces the channel number of signal output.According to user demand, the present application can realize the switching of single probe measurement mode and coincidence measurement mode, the method for monitoring the secondary particle intensity generated by the interaction of primary beam particles and human tissue in particle beam therapy field, the position and dose of particle primary beam irradiation target body or human body are calculated by secondary particle counting rule, so as to realize the monitoring of particle beam range and dose, the present application reduces the channel number of readout electronics and reduces the complexity of data acquisition, modular design meets the characteristics of economy and miniaturization.

The present application relates to a kind of direct coupling DC SQUID readout electronics, including gradiometer antenna and SQUID sensor, the gradiometer antenna is superconducting contact with the input coil of SQUID sensor, and form superconducting flux transformer with it, the output of the SQUID sensor is connected with the input of conversion amplifier, the output of the conversion amplifier is connected with the input of integrator, the SQUID sensor is connected with the output of bias voltage module, the output of the integrator is analog output terminal, the output of the integrator is connected with the input of feedback gain module, the output of the feedback gain module is connected with feedback coil, the feedback coil is connected with SQUID sensor inductance.The present application makes output voltage more linear.

The application discloses a kind of front-end readout electronics systems of scintillator detector based on multi-channel waveform digitization chip, belong to the technical field of data front-end reading, comprising: amplifier board, the current signal of scintillator detector is converted into voltage signal and amplifies;FEE board includes amplifier module, switch capacitor array module, sinusoidal wave module, ADC module, internal trigger module and FPGA module;Amplifier module, the voltage signal output by amplifier board is converted into differential signal;Switch capacitor array module is used for high-speed sampling and low-speed readout;Sinusoidal wave module provides time calibration signal source;ADC module quantizes the signal of low-speed readout;FPGA module is used for controlling and data acquisition to multiple modules;The application can read out multi-channel original data to the SiPM module of any scintillator detector, has very high time resolution, and can reduce circuit complexity, improve the reliability of particle discrimination.

This document discloses system and method embodiments for measuring shear forces at fixation points of textile-based implants. A system for supporting tissue includes two or more sensor assemblies (110), each sensor assembly (110) including a base portion (116) configured to be anchored in tissue (120), a beam (114) extending away from the base portion (116) toward an attachment surface (112), and a sensor (130) attached to the beam (114) and configured to measure a force applied to the beam (114). The system further includes a mesh (102) configured to be disposed adjacent to the tissue (120), the mesh (102) configured to attach to the attachment surface (112) of each of the sensor assemblies (110) such that mesh tension applies a shear force to the attachment surface (112) of a sensor assembly (110). The system further includes readout electronics configured to receive force information from each sensor assembly (110).

The application discloses a micro-channel plate detector reading system, and relates to the field of nuclear and particle detection. The detector system comprises a micro-channel plate combination, a resistive layer, a bias voltage electrode layer, a sensing reading layer and multi-channel reading electronics arranged in sequence. The sensing reading layer comprises an insulating layer and a sensing reading electrode layer. The sensing reading electrode layer is arranged in the insulating layer. The resistive layer is a diamond-like carbon film. The application can improve the working life and position resolution of the MCP detector.

A method for operating a LIDAR device by a control unit is provided. At least one beam pulse is emitted into a sampling range by a beam source, and beams that are reflected and / or back-scattered from the sampling range are received by a detector that includes multiple single-photon avalanche diode (SPAD) cells, and converted into electrical counting pulses. The at least one beam pulse is generated with a lengthened falling intensity edge, and the detector is read out by a DC-coupled readout electronics system. Moreover, a control unit and a LIDAR device are provided.

The application discloses a kind of Bragg peak detector dose depth measurement system and method based on machine learning, it is characterized in that, including: Bragg peak detector array component, front-end readout electronics module, data acquisition and synchronization module and machine learning processing module;Bragg peak detector array component is used to convert received target particle beam into ionization signal;Front-end readout electronics module is used to respectively carry out charge sensitive amplification, shaping filtering and analog-digital conversion processing to the ionization signal output by each array component to obtain digital dose sequence;Data acquisition and synchronization module are used to synchronously collect the digital dose sequence output by front-end readout electronics module, and the spatial registration is carried out to the digital dose sequence collected, to obtain initial dose-depth distribution curve;Machine learning processing module is used to extract features and physical constraints to initial dose-depth distribution curve by preset depth learning model to obtain the dose depth measurement result of target particle beam.

The invention discloses a high-sensitivity ray imaging linear array detection system and a positioning method. The high-sensitivity ray imaging linear array detection system comprises a linear array detector, a photoelectric detector array, a calibration unit and a signal analysis and processing unit, the linear array detector is of a multi-layer structure formed by I first pixels, projections of the linear array detector on the horizontal plane are not completely overlapped, the photoelectric detector array is of P * Q second pixels formed by P * Q photoelectric detectors, and the calibration unit is used for generating a system matrix. And the action position of the ray and the linear array detector is found in the signal analysis processing unit according to the positioning method in combination with the actual measurement photoelectric detector array response and the system matrix, and the deposition energy is calculated. According to the invention, only one set of photoelectric detector array and the readout electronics system are adopted, so that the action positions and deposition energy of rays and a plurality of linear array detectors can be accurately estimated. And the detection sensitivity can be greatly improved while the same spatial resolution as the original single linear array detector is maintained.