Improvement of Signal Readout in Charge Division Type Position Sensitive Proportional Counter
Improvement of Signal Readout in Charge Division Type Position Sensitive Proportional Counter
复制标题
电荷分型位置敏感正比计数器信号读出的改进
DOI：
10.3327/jnst.26.1094
复制
发表时间：
1989
影响因子：
1.2
通讯作者：
A. Miyahara
中科院分区：
文献类型：
--
作者：
A. Uritani;C. Mori;Tamaki Watanabe;A. Miyahara
传统电荷分配的位置灵敏正比计数器（PSPC）一般难以在狭小的空间内插入，也难以在特殊环境下工作，如水中或反应堆中。我们改进了位置信号读出，使其能够在这种环境下使用PSPC。通过将阳极线的另一端通过电容器接地，仅从阳极线的一端提取位置信号，并且从平行于阳极线伸展的十二根阴极线获得总电荷信号，使得两个前置放大器能够仅连接在计数器的一端。用X射线检查了具有改进的信号读出的PSPC的特性。位置分辨率为1.3 mm，有效长度为550 mm，并取决于X线注射位置。位置信号的非线性小于0.2%。
It is generally difficult to insert a position sensitive proportional counter (PSPC) with a conventional charge division in a narrow space, or to work the counter under special environments, such as in water or in a reactor. We improved the position signal readout to make it possible to use a PSPC under such environments. A position signal was extracted from only one end of an anode wire by grounding the other end through a capacitor and a total charge signal was obtained from twelve cathode wires stretched parallel to the anode wire, so that two pre-amplifiers were able to be connected at only one end of the counter. The characteristics of the PSPC with the improved signal readout were examined with X-rays. The position resolution was 1.3 mm with an effective length of 550 mm, and depended on the X-ray injection position. A non-linearity of position signals was less than 0.2%.