Scintillators and Cherenkov detectors for the registration of 10.8 MeV gamma rays

[摘要] The identification of nitrogen by neutron activation has been utilized in both explosive detection and in-vivo metabolic analysis. The 10.8 MeV gamma ray line emitted by thermal neutron capture provides a unique signature, however, due to its high energy its registration is non-trivial. Conventional approaches have used large dense inorganic scintillators which inevitably entail considerable expense. We examine the capabilities of arrays of smaller scintillation detectors and the use of glass Cherenkov detectors as an alternative.

[发布机构] Department of Physics and Astronomy, University of Sheffield, South Yorkshire, S3 7RH, Sheffield, United Kingdom^1;ETH Zürich, Institute for Particle Physics, Otto-Stern-Weg 5, Zürich; 8093, Switzerland^2

[效力级别] 工业技术 [学科分类] 工业工程学

[关键词] Cherenkov Detectors;Conventional approach;Explosive Detection;Gamma-ray line;Inorganic scintillator;Metabolic analysis;Neutron activation;Thermal neutron capture