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本文介绍的是在超核生成反应（如：１２Ｃ（ｋ－，π０）１２ΛＢ）中，为确定入射粒子ｋ－在靶中停止位置而建造的一种多丝正比室，该室已应用在Ｅ９０７实验中，并在ＡＧＳ（ＢＮＬ）的π，ｋ束中进行了数据获取。该室的工作方式采用阴极感应条信号读出方式。通过对活性靶室的数据分析，给出了它的感应信号的平均输出幅度、效率以及位置分辨率。最后对ｋ－停止事例，给出如何确定其在碳靶中的停止位置，以及停止率。对ｋ－测得的位置分辨为：ｘ＝０．９３ｍｍ，ｙ＝０．３６ｍｍ和ｚ≥１．００ｍｍ。在碳靶中ｋ－的停止率约为２０％。
This paper presents a multi-filament proportional cell constructed to determine the stopping position of incident particle k-in a target in a hyper-nucleation reaction (eg, 12C (k-, π0) 12ΛB) that has been used in E907 In the experiment, data acquisition was carried out in π, k beams of AGS (BNL). The room’s working method using cathode sensing strip signal readout. Through the data analysis of active target chamber, the average output amplitude, efficiency and position resolution of its sensing signal are given. Finally, k-stop case, given how to determine its stop position in the carbon target, and the stop rate. The k-measured position resolution is: x = 0.93 mm, y = 0.36 mm and z ≧ 1.00 mm. In the carbon target k-stop rate of about 20%.