A Low-Leakage Gallium Phosphide Particle Detector

低泄漏磷化镓粒子探测器

• 批准号: 9303764
• 负责人: Sandra Collins
• 金额: $ 25万
• 依托单位: AstroPower, Incorporated
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1995
• 资助国家: 美国
• 起止时间: 1995-10-01 至 1997-03-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9303764&HistoricalAwards=false
• 关键词: Low; Leakage; Gallium; Phosphide; Particle

9303764 Collins Based on the low leakage, room temperature detector performance demonstrated in a successful Phase I program, AstroPower is proposing further development of gallium phosphide detectors for nuclear particle detection under operating conditions of room temperature or above. The Phase II program will focus on developing and integrating the Phase I findings into high performance detectors. The detectors designs that will be developed can be used in three different room temperature device configuration: (i) a single junction low energy spectrometer or high energy encounter, (ii) a single junction, thin {SYMBOL 68 \f "Symbol"}{SYMBOL 69 \f "Symbol"} detectors, and (iii) a multiple junction medium to high energy spectrometer. These devices require the development of epitaxial growth techniques that yield high resistivity, thick layers with high crystalline perfection, and the development of processing techniques that yield high diode breakdown voltages. An important objective of this is to determine the specific energy range capabilities of GaP. It is expected that gallium phosphide will be a superior replacement for silicon and germanium for a wide energy range of protons, alpha particles and photons in harsh environments.

9303764柯林斯基于一项成功的第一阶段计划所展示的低泄漏、室温探测器性能，AstroPower正在计划进一步开发用于在室温或更高工作条件下进行核粒子探测的磷化镓探测器。第二阶段计划将专注于开发第一阶段的发现，并将其整合到高性能探测器中。将开发的探测器设计可用于三种不同的室温设备配置：(I)单结低能能谱仪或高能相遇，(Ii)单结、薄{SYMBOL 68\f“SYMBOL”}{SYMBOL 69\f“SYMBOL”}探测器，以及(Iii)多结中高能谱仪。这些器件需要开发能够产生高电阻率、具有高结晶完备性的厚层的外延生长技术，以及能够产生高二极管击穿电压的加工技术。这样做的一个重要目标是确定GAP的特定能量范围能力。预计在恶劣的环境中，磷化镓将成为质子、α粒子和光子的广泛能量范围的硅和锗的优良替代品。