摘要
高能天体物理观测中,宇宙线带电粒子通过探测器丢失的能量常是产生探测器本底信号的重要来源。宇宙线产生的信号与它通过探测器的径迹长度和探测器大小、形状有关。因气球X射线天文观测和γ射线暴观测的需要,空间天文实验室研制了若干种正比计数器,为此我们进行了宇宙线通过正比管径迹长度的模拟计算,它是整个设计工作中的一部分。
On the basis of the emulative calculation on the pathlengths of ominidirectional cosmic ray through various gas proportional counters, we can choose the size and shape of proportional counters and the suitable gas filled so as to reduce the background counts caused by cosmic ray in a certain range of observed energy.