本工作是为制作Q3D磁谱仪焦面探测器而进行的预备实验,目的在于研究用抽头延迟线方法读出多丝正比室的位置信息,提高位置分辨能力,以满足谱仪系统对探测器的要求。 在用~(241)Amα源作检验源,多丝正比室的阴极采用抽头延迟线读出方法,电子仪器采用本单位生产的NIM插件的情况下,实验的初步结果为:位置谱的半宽度约0.9mm,线性曲线的积分非线性为±0.6％。利用这一结果可以制成一维、二维位置灵敏探测器。 This work is to prepare Q3D magnetic spectrometer focal plane detector for the preparatory experiment, the purpose is to study the use of tapped delay line method to read out the location of multi-wire proportional cell information to improve the position resolution to meet the spectrometer system on the detector Request. In the case of using the source of ~ (241) Amα as the test source and the cathode of the multi-wire proportional chamber as the tapped delay line readout method, and the electronic device uses the NIM plug-in manufactured by the unit, the preliminary results of the experiment are as follows: About 0.9mm, the integral nonlinearity of the linear curve is ± 0.6%. Using this result can be made of one-dimensional, two-dimensional position sensitive detector.