In order to improve the efficiency of the scintillation crystal testing,
we present a crystal testing device that has 1) list-mode data output
for the random radiation events, and 2) richer spatial information than
the single channel recording devices to achieve multiple crystal
measurement, and 3) good practicability, stability and expansibility.
The device consists of position-sensitive PMT, events trigger
electronics and 50MSps ADC. The goal of this study is to describe the
device and evaluate the utility it provides. It suggests that the device
can be used effectively to examine the scintillation crystal and
measure the environmental radiation dose rapidly with standard
scintillation crystal. The testing result demonstrates the high
efficiency of the device, and shows the potential advantage of digital
electronics design in scintillation crystal testing.