多孔辐射介质探测器的研究
Investigations of porous radiation dielectric detectors
摘要：
多丝和微带多孔探测器已开发和直流操作的研究。多丝多孔探测器由阳极丝、铝阴极和填充多孔CsI的间隙组成。微带多孔探测器由金属条覆盖的绝缘板、微网阴极和填充多孔CsI的间隙组成。这些探测器在制造后的一段时间内性能不稳定，空间分辨率较差。然而，在真空中保持一定时间后，它们自发地获得优于100 $μ$ m的稳定性和空间分辨率，并且对重电离$α$ -粒子和5.9 keV X射线的探测效率分别为100%和70%。MWPDD在711 cm $^{-2}$ s $^{-1}$的重电离$α$ -颗粒强度下稳定运行。
英文摘要：
Multiwire and microstrip porous detectors have been developed and investigated for DC operation. The multiwire porous detector consists of anode wires, an Al cathode and a gap between them filled with porous CsI. The microstrip porous detector consists of an insulating plate covered with metallic strips, micromesh cathode and a gap between them filled with porous CsI. For some time after being manufactured, these detectors' performances are non-stable and they have poor spatial resolution. However, after being kept in vacuum for a certain time, they spontaneously acquire stability and spatial resolution better than 100$μ$m and have detection efficiencies of 100% and 70% for heavily ionizing $α$-particles and 5.9 keV X-rays respectively. The MWPDD performs stably at an intensity of heavily ionizing $α$ -particles of 711cm$^{-2}$s$^{-1}$.
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