Validation of Measuring Decay Time of Liquid Scintillator on Use of Photomultiplier Tubes; 광전증폭관을 통한 액체섬광물질의 감쇠시간 측정의 유효성 검증

초록

In this research, a simulation was performed to verify the effectiveness of using a photomultiplier tube (PMT) to measure the decay time of a liquid scintillator. When a radioactive particle interacts with the liquid scintillator, it produces scintillation light, which can be analyzed by examining its decay time characteristics. However, when observing scintillation through a PMT, the signal is often distorted due to various factors. This study developed a simulation to model such distortions and assessed whether the decay time could still be accurately measured using the PMT by fitting the distorted signal and comparing it to the input decay constant. The simulation results demonstrated that fitting the waveform in a region sufficiently distant from the peak produced values consistent with the input decay constant. This confirms the feasibility of using a PMT to accurately measure the decay time of liquid scintillators.

키워드