SBIR Phase I: Development of a High Resolution Room Temperature Cylindrical Ionization Chamber Xenon X-Ray/GammaRadiation Detector

这个小型企业创新研究项目是一种新型辐射探测器，它有可能为商业部门和政府提供一种简单、低成本、具有极高能量分辨率的室温辐射探测器。该探测器不需要低温冷却，计划非常坚固耐用，并提供从50keV到lOMeV的x射线和伽马射线的有效和准确识别。它的内在能量分辨率将远远优于目前可用的任何闪烁探测器，并将接近低温冷却的锗。senor的研究人员一直在研究接近临界点的高纯度氙气作为室温检测介质。这种热力学状态下的氙气已被证明非常适合于室温辐射检测。一个氙电离室探测器构造在一个圆柱形几何提供了额外的机会来执行康普顿抑制通过脉冲形状判别。圆柱形电离室氙x射线/伽马射线探测器在高分辨率、室温辐射探测方面取得了重大进展，可用于条约核查、危险废物监测、深井测井、x射线和伽马射线天体物理学以及医疗诊断等多种应用。

This Small Business Innovation Research project is for a novel radiation detector which has the potential to provide the commercial sector and government with a simple, low cost, room temperature radiation detector with extremely high energy resolution. The detector requires no cryogenic cooling, is planned to be extremely rugged and provide efficient and accurate identification of x-rays and gamma-rays from 50keV to lOMeV. It will have an intrinsic energy resolution far superior to any scintillation detector currently available and will approach that of cryogenically cooled germanium. The researchers at SenTor have been investigating highly purified xenon gas near the critical point as a room temperature detection medium. Xenon gas in this thermodynamic regime has proven to be ideally suited for room temperature radiation detection. An xenon ionization chamber detector constructed in a cylindrical geometry provides the additional opportunity to perform Compton suppression through pulse shape discrimination. A cylindrical ionization chamber xenon x-ray/gamma-ray detector represents a significant advancement in high resolution, room temperature radiation detection and could be used in such diverse applications as treaty verification, hazardous waste monitoring, deep well logging, x-ray and gamma-ray astrophysics and medical diagnostics.