【摘要】 为进行空间硬X射线天文观测,研制了一个高空气球载的高压氙(Xe)多丝正比室硬X射线谱仪,采用了逃逸门技术.本文介绍逃逸门技术的原理,并描述该谱仪实现逃逸门技术的方法及实际性能.该谱仪在87年高空气球飞行观测中获得了有效的实验数据.更多还原

【Abstract】 When hard X-ray is detected by a multiwire proportional chamber filled with Xe or Xr, the intrinsic K-fluorescent photon, which of ten escapes from the original cell and is absorbed in other cell of the chamber, provides an accomtanied signal wih certain amplitude. A processing technique of such signal, called escape gating technique, can improve both the energy resolution and background rejection efficiency of the detector. In this paper, we describe this technique and its application in our balloon borne hard X-ray spectroscope successfully launched on 31 August, 1987, at an altitude of 37 km above sea level near Beijing.更多还原