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The Design of MICRO-SPECT Detector and Electronics

Author: YuanZhiJia
Tutor: JinYongJie
School: Tsinghua University
Course: Nuclear Science and Technology
Keywords: MicroSPECT Scintillation detector CdZnTe detector Programmable logic device
CLC: TL81
Type: Master's thesis
Year: 2005
Downloads: 110
Quote: 0
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Abstract


High-resolution, high detection efficiency MicroSPECT is a hot research field of nuclear medicine imaging in recent years , it is of great significance in pathology and drug research . The MicroSPECT the detector and its electronics hardware design emphasis and difficulty . Of this the detector design paper MicroSPECT the system research focus on comparative scintillation detector and two design CdZnTe ( cadmium zinc telluride ) detector . For scintillation detectors , thesis research and summarize the relevant literature , using Monte Carlo method to simulate the gamma photon detection process , and the crystal thickness resolution of the scintillation detector system . The paper presents several new methods for its supporting data acquisition circuit , fitting , such as waveform sampling to prevent peak accumulation method (PPM) to improve the count rate of the system and signal sampling accuracy . CdZnTe detector papers according to their characteristics , design package bodies , and detector 256 detection unit performance testing and statistical . Paper using a programmable logic device (PLD) to achieve its supporting data acquisition circuit logic control of the data acquisition and data transfer between the USB interface chip , shrink the system volume , improve system integration . In addition , the paper designed detector matching other modules , including high and low voltage power supply , rack structure and motor control .

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CLC: > Industrial Technology > Nuclear technology > Particle detection,radiation detection and nuclear instrumentation > Radiation detection technology and instrumentation
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