Title :
Temperature dependence of absolute CsI(Tl) scintillation yield
Author :
Valentine, J. ; Wehe, D. ; Knoll, G. ; Moss, C.
Author_Institution :
Dept. of Nucl. Eng., Michigan Univ., Ann Arbor, MI, USA
Abstract :
A 1 cm*1 cm right cylindrical CsI(Tl) crystal was mounted on a 1 cm*1 cm square photodiode to measure the absolute scintillation yield of CsI(Tl) between -80 degrees C and 50 degrees C. A maximum yield of 65900+or-3300 photons/MeV was measured at 36 degrees C. While the scintillation yield at -80 degrees C is about 57% of the maximum, the yield is approximately constant in the range of -15 to 40 degrees C, at an average of 64600+or-3200 photons/MeV. Consideration is also given to the temperature dependence of the scintillation decay time, the scintillation emission spectrum, and the wavelength-dependent photodiode quantum efficiency.<>
Keywords :
caesium compounds; luminescence of inorganic solids; photoluminescence; scintillation; tellurium; 1 cm; 193 to 323 K; 309 K; CsI:Tl; absolute scintillation yield; decay time; emission spectrum; photodiode quantum efficiency; scintillation yield; temperature dependence; Energy measurement; Gamma ray detection; Laboratories; Nuclear measurements; Photodetectors; Photodiodes; Photonic crystals; Solid scintillation detectors; Temperature dependence; Temperature distribution;
Conference_Titel :
Nuclear Science Symposium and Medical Imaging Conference, 1991., Conference Record of the 1991 IEEE
Conference_Location :
Santa Fe, NM, USA
Print_ISBN :
0-7803-0513-2
DOI :
10.1109/NSSMIC.1991.258897
