[2G01-07] Medical Data, Neutron Capture Reaction, Resonance Scattering, Measurement Technique

[2G07] A new kind of radiation-detector dead-time

Brian Hales¹, *Atsushi Kimura¹, Shoji Nakamura¹, Osamu Iwamoto¹ (1. Japan Atomic Energy Agency)

Keywords:Dead-time, Time-dependent radiation measurement, Time-of-flight, Data Acquisition

It is necessary to account for detector and data acquisition system dead-time in time-dependent radiation detection experiments. Until now, the paralyzable and non-paralyzable models have been applied, in which an event occurring in the detector causes the detector to be unable to detect another event for a short period of time. (That is to say, deadtime occurs after an event). However, during a time-of-flight experiment with the DAQ system for the Ge detector at J-PARC/MLF/ANNRI, we have found a dead-time phenomenon which is entirely unexplainable by these models. In this talk, we will discuss this new type of dead-time, its causes, and how to correct for it.