A system for detecting a position of an ionizing radiation. The system includes a radiation detector including a plurality of cathode films, a plurality of anode strips sets, a plurality of insulator films, a conductive grid, and a drift region. Each set of the plurality of anode strips sets is disposed between a respective pair of adjacent cathode films of the plurality of cathode films. Each of the plurality of insulator films is disposed between a respective cathode film of the plurality of cathode films and a respective set of the plurality of anode strips sets. The conductive grid is disposed in parallel with the detection plane and exposed to the ionizing radiation. A drift region includes a region between the conductive grid and the detection plane. The radiation detector is configured to ionize a gas by generating an electric field inside the drift region.

A system for detecting a position of an ionizing radiation. The system includes a radiation detector including a plurality of cathode films, a plurality of anode strips sets, a plurality of insulator films, a conductive grid, and a drift region. Each set of the plurality of anode strips sets is disposed between a respective pair of adjacent cathode films of the plurality of cathode films. Each of the plurality of insulator films is disposed between a respective cathode film of the plurality of cathode films and a respective set of the plurality of anode strips sets. The conductive grid is disposed in parallel with the detection plane and exposed to the ionizing radiation. A drift region includes a region between the conductive grid and the detection plane. The radiation detector is configured to ionize a gas by generating an electric field inside the drift region.

Disclosed herein is a method comprising: forming one or more blobs within a footprint of a pixel of a photodetector; wherein the blobs comprise quantum dots configured to emit a pulse of visible light upon absorbing a particle of radiation; wherein the pixel is configured to detect the pulse of visible light. Also disclosed herein is a radiation detector, comprising: an array of discrete blobs with quantum dots configured to emit a pulse of visible light upon absorbing a particle of radiation; an electronic system configured to detect the particle of radiation by detecting the pulse of visible light.

Disclosed herein is a method comprising: forming one or more blobs within a footprint of a pixel of a photodetector; wherein the blobs comprise quantum dots configured to emit a pulse of visible light upon absorbing a particle of radiation; wherein the pixel is configured to detect the pulse of visible light. Also disclosed herein is a radiation detector, comprising: an array of discrete blobs with quantum dots configured to emit a pulse of visible light upon absorbing a particle of radiation; an electronic system configured to detect the particle of radiation by detecting the pulse of visible light.

A pulse detection circuit configured to detect peak pulse values from pulses contained in an input analog signal includes a control circuit to generate a peak control signal based on input from a microcontroller and/or a peak detector, and a peak track/hold circuit to produce an output peak analog signal responsive to the input analog signal and peak control signal. The peak track/hold circuit includes a peak-detect operational amplifier having first and second input terminals to receive the input analog signal and the peak control signal respectively, and a peak-hold capacitor connected to an output terminal of the operational amplifier. The pulse detection circuit includes an analog to digital converter to produce an output peak digital signal from the output peak analog signal. The peak track/hold circuit switches from a tracking mode to a hold mode upon the arrival of the peak control signal generated from the control circuit.

A pulse detection circuit configured to detect peak pulse values from pulses contained in an input analog signal includes a control circuit to generate a peak control signal based on input from a microcontroller and/or a peak detector, and a peak track/hold circuit to produce an output peak analog signal responsive to the input analog signal and peak control signal. The peak track/hold circuit includes a peak-detect operational amplifier having first and second input terminals to receive the input analog signal and the peak control signal respectively, and a peak-hold capacitor connected to an output terminal of the operational amplifier. The pulse detection circuit includes an analog to digital converter to produce an output peak digital signal from the output peak analog signal. The peak track/hold circuit switches from a tracking mode to a hold mode upon the arrival of the peak control signal generated from the control circuit.

Disclosed herein is an apparatus comprising: a radiation detector; a collimator; wherein the collimator and the radiation detector are configured to collectively translate relative to a radiation source along a direction without relative movement the collimator and the radiation detector; wherein the collimator comprises a plurality of planar plates parallel to one another; and wherein the planar plates are not parallel to the direction.

Disclosed herein is an apparatus comprising: a radiation detector; a collimator; wherein the collimator and the radiation detector are configured to collectively translate relative to a radiation source along a direction without relative movement the collimator and the radiation detector; wherein the collimator comprises a plurality of planar plates parallel to one another; and wherein the planar plates are not parallel to the direction.

Provided is a radiation detector including a radiation detecting unit, a gate module controlling a gate line, a readout module reading out charges stored in an exposure detection pixel determined by a data line and the gate line, and an auto exposure detecting unit determining whether the radiation detecting unit is exposed to a radiation.

Provided is a radiation detector including a radiation detecting unit, a gate module controlling a gate line, a readout module reading out charges stored in an exposure detection pixel determined by a data line and the gate line, and an auto exposure detecting unit determining whether the radiation detecting unit is exposed to a radiation.