Single detector-dual scintillator anti-Compton probes

• Дата: 2004
• Автори: Rosenfeld, A.B., Lerch, M.F.L., Takacs, G.J., Gektin, A.V., Perevertailo, V.L.
• Формат: Стаття
• Мова: English
• Опубліковано: НТК «Інститут монокристалів» НАН України 2004
• Назва видання: Functional Materials
• Онлайн доступ: http://dspace.nbuv.gov.ua/handle/123456789/135243
• Назва журналу: Digital Library of Periodicals of National Academy of Sciences of Ukraine
• Цитувати: Single detector-dual scintillator anti-Compton probes / A.B. Rosenfeld, M.F.L. Lerch, G.J. Takacs, A.V. Gektin, V.L. Perevertailo // Functional Materials. — 2004. — Т. 11, № 1. — С. 216-220. — Бібліогр.: 8 назв. — англ.

Anti-Compton spectrometers have many applications in the fields of safeguards, medicine and security. One of the most important applications is in the location of low energy gamma sources in the presence of high-energy gamma background or the location of high-energy gamma radiation sources hidden within the same spread of radiation back -ground. In most situations space constraints limit the application of large size detectors or classical anti-Compton spectrometers. We have designed a compact anti-Compton spectrometer based on a single chip, dual silicon photodetector optically coupled to isolated, annular scintillators. Preliminary room temperature testing with Csl(TI) and LYSO scintillators demonstrate the readout capabilities of the spectrometer concept. We have measured an outstandi ng energy resolution of 12 % and 8 % for the 511 keV line from a 22Na source used to excite a LYSO and Csl(TI) respectively. The other variants of Si-Csl(TI) probes is also discussed.