A photon counting pixel chip with energy windowing
A photon counting pixel chip with energy windowing
复制标题
具有能量窗的光子计数像素芯片
DOI：
10.1109/nssmic.1999.842523
复制
发表时间：
1999
期刊：
影响因子：
--
通讯作者：
L. Blanquart
中科院分区：
文献类型：
--
作者：
P. Fischer;A. Helmich;M. Lindner;N. Wermes;L. Blanquart
提出了一种允许使用附加能量信息进行单光子计数而不增加辐射剂量的方法。在像素芯片上，通过在每个像素中引入带有单独计数器的第二鉴别器来实现能量窗口。两个鉴别器都有独立的阈值电压，并且可以单独调整。给出了噪声行为、阈值变化和阈值设置的测量结果。
A method allowing single photon counting with additional energy information without increasing the radiation dose is presented. On a pixel chip an energy window has been realised by introducing a second discriminator with a separate counter in every pixel. Both discriminators have an independent threshold voltage and can be adjusted individually. Measurements on the noise behavior, threshold variation and threshold settings are presented.