A multi-channel device for scintillation crystal testing

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.