LSO/photodiode and LSO avalanche photodiode detectors

The performance of Lu/sub 2(1-x)/Ce/sub 2x/(SiO/sub 4/)O (LSO) detectors was assessed under laboratory conditions. The PMT (photomultiplier tube) and the APD (avalanche photodiode) gave the same energy resolution when used with LSO, although the APD displayed a thermal noise threshold of 30 keV compared to >