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

SBIR 第一阶段：开发高分辨率室温圆柱形电离室氙 X 射线/伽玛辐射探测器

• 批准号: 9561592
• 负责人: Gary Tepper
• 金额: $ 7.17万
• 依托单位: SenTor
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1996
• 资助国家: 美国
• 起止时间: 1996-04-01 至 1996-09-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9561592&HistoricalAwards=false
• 关键词: SBIR; Phase; Development; Resolution; Room

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.

该小型企业创新研究项目旨在开发一种新型辐射探测器，该探测器有潜力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，设计极其坚固，可高效、准确地识别 50keV 至 1OMeV 的 X 射线和伽马射线。 它将具有远远优于目前可用的任何闪烁探测器的固有能量分辨率，并将接近低温冷却的锗。 SenTor 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。 事实证明，这种热力学状态下的氙气非常适合室温辐射检测。 采用圆柱形几何结构构造的氙电离室检测器提供了通过脉冲形状辨别来执行康普顿抑制的额外机会。 圆柱形电离室氙 X 射线/伽马射线探测器代表了高分辨率、室温辐射探测方面的重大进步，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。