后端读取电子设计和初步结果:基于CZT的头专用PET系统
Yuli Wang1, Ryan Herbst2, Shiva Abbaszadeh1
1Department of Electrical and Computer Engineering, University of California, Santa Cruz, Santa Cruz, CA, 95064.
概括
本研究详细介绍了一种新型 Telluride (CZT) 探测器系统的电子读数设计,用于头部和部正子发射断层扫描 (PET). 最初的测试显示出出色的电子噪声性能,这对于高分辨率成像至关重要.
科学领域:
- 医学物理 医学物理
- 仪器化 仪器化 仪器化
- 核医学就是核医学.
背景情况:
- 电 (CZT) 探测器在室温性能和空间分辨率上为辐射检测提供了卓越的性能.
- 开发专门的正子发射断层扫描 (PET) 系统需要复杂的读取电子设备,以获得高质量的成像.
研究的目的:
- 介绍使用CZT探测器的双面板专用头PET系统的后端读出电子设计.
- 报告开发的读出系统的初始电子噪声测量.
主要方法:
- 读取系统集成了RENA板,风扇板和PicoZed板,用于数据采集和处理.
- 使用方形波测试脉冲量化的电子噪声进行充电注入,模拟来自511 keV光子的信号.
主要成果:
- 该系统使用150个RENA板和每个板5个风扇板,具有高数据传输能力 (RENA的50Mbps,PicoZed的6.6Gbps).
- 在511 keV时测量到的全宽半最大 (FWHM) 电子噪声小于1% (4.89 ± 0.92 keV).
结论:
- 开发的后端读取电子设备适用于基于CZT的头PET系统.
- 实现的低电子噪声对高分辨率PET成像应用具有前景.
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