Mechanically Cooled Large-Volume Germanium Detector Systems for Neclear Explosion Monitoring DOENA27323-2

Hull, E.L.

PHDs Co.

关键词: Nuclear Explosions;    98 Nuclear Disarmament, Safeguards, And Physical Protection;    46 Instrumentation Related To Nuclear Science And Technology;    Monitoring;    Germanium Detector, Mechanical Cooling, Rasa;   

DOI  :  10.2172/894164
RP-ID  :  DOENA27323-2
RP-ID  :  FC52-06NA27323
RP-ID  :  894164

美国|英语

来源: UNT Digital Library

【 摘 要 】

Compact maintenance free mechanical cooling systems are being developed to operate large volume high-resolution gamma-ray detectors for field applications. To accomplish this we are utilizing a newly available generation of Stirling-cycle mechanical coolers to operate the very largest volume germanium detectors with no maintenance. The user will be able to leave these systems unplugged on the shelf until needed. The maintenance-free operating lifetime of these detector systems will exceed 5 years. Three important factors affect the operation of mechanically cooled germanium detectors: temperature, vacuum, and vibration. These factors will be studied in the laboratory at the most fundamental levels to insure a solid understanding of the physical limitations each factor places on a practical mechanically cooled germanium detector system. Using this knowledge, mechanically cooled germanium detector prototype systems will be designed and fabricated.