Title :
Study of large area avalanche photodiode for detecting liquid xenon scintillation
Author :
Solovov, V.N. ; Chepel, V. ; Lopes, M.I. ; Marques, R. Ferreira ; Policarpo, A.J.P.L.
Author_Institution :
Dept. de Fisica, Coimbra Univ., Portugal
fDate :
8/1/2000 12:00:00 AM
Abstract :
A large area avalanche photodiode (LAAPD) has been investigated as a possible photosensor for detecting liquid xenon scintillation. The LAAPD proved to be operational at the temperature of liquid xenon (down to -105°C) with the dark current significantly reduced with respect to that at room temperature (less than 1 pA versus 30 nA at 20°C). The bias voltage needed to achieve a certain gain is found to decrease linearly with decreasing temperature at a rate of 2.3 V/°C
Keywords :
amplification; avalanche photodiodes; liquid scintillation detectors; 1 pA; 168 K; LAAPD; Xe; bias voltage; dark current; gain; large area avalanche photodiode; liquid Xe scintillation; Avalanche photodiodes; Copper; Dark current; Deuterium; Lamps; Solid scintillation detectors; Temperature; Testing; Voltage; Xenon;
Journal_Title :
Nuclear Science, IEEE Transactions on
