13 results about "Readout electronics" patented technology

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.

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.

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.

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.

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.

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.