高电阻硅有源像素传感器及其读数

W. Chen, G. Geronimo, Zheng Li, Paul O’Connor, V. Radeka, P. Rehak, Graham C. Smith, Bin Yu
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引用次数: 32

摘要

介绍了x射线有源矩阵像素传感器(XAMPS)的概念。XAMPSs是直接照明,位置敏感的x射线探测器,大约有一百万像素。他们通过测量传感器内部转换后的x射线释放的总电荷来计算每个像素中衍射x射线的数量。读出是用相对较少的通道数来完成的,通道数等于像素数的平方根。估计读出时间约为1毫秒。读出电子器件的噪声可以很低,几乎没有增加每像素入射x射线数量的额外波动,因此XAMPS的性能非常接近x射线晶体学的理想探测器。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Active pixel sensors on high resistivity silicon and their readout
The concept of an X-ray active matrix pixel sensor (XAMPS) is introduced. XAMPSs are direct illumination, position sensitive X-ray detectors with about one million pixels. They count the number of diffracted X-rays in each pixel by measuring the total charge released by converted X-rays in the body of the sensor. Readout is accomplished with a relatively small number of channels equal to the square root of the number of pixels. The estimated readout time is about 1 ms. Noise of the readout electronics can be so low that practically no additional fluctuations in the number of incident X-rays per pixel are added and therefore the XAMPS performance is very close to that of an ideal detector for X-ray crystallography.
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