A photon counting pixel chip with energy windowing
A photon counting pixel chip with energy windowing
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DOI：
10.1109/23.856711
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发表时间：
2000-06-01
影响因子：
1.8
通讯作者：
Blanquart, L
中科院分区：
文献类型：
--
作者：
Fischer, P;Helmich, A;Blanquart, L
本文提出了一种在不增加辐射剂量的情况下，利用附加能量信息进行单光子计数的方法，在象素芯片上，通过在每个象素中引入第二个计数器，实现了一个能量窗口。两个鉴别器都有独立的阈值电压，可以单独调整。测量的噪声行为，阈值变化和阈值设置。
A method allowing single photon counting with an 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.