Characterization of Germanium Detectors for the Measurement of the Angular Distribution of Prompt gamma-rays at the ANNRI in the MLF of the J-PARC

Shusuke Takada; Takuya Okudaira; Fumiya Goto; Katsuya Hirota; Atsushi Kimura; Masaaki Kitaguchi; Jun Koga; Taro Nakao; Kenji Sakai; Hirohiko M. Shimizu; Tomoki Yamamoto; Tamaki Yoshioka

doi:10.1088/1748-0221/13/02/P02018

paper

Characterization of Germanium Detectors for the Measurement of the Angular Distribution of Prompt gamma-rays at the ANNRI in the MLF of the J-PARC

arXiv:1712.02503 · doi:10.1088/1748-0221/13/02/P02018

Abstract

In this study, the germanium detector assembly, installed at the Accurate Neutron-Nuclear Reaction measurement Instruments (ANNRI) in the Material and Life Science Facility (MLF) operated by the Japan Proton Accelerator Research Complex (J-PARC), has been characterized for extension to the measurement of the angular distribution of individual gamma-ray transitions from neutron-induced compound states. We have developed a Monte Carlo simulation code using the GEANT4 toolkit, which can reproduce the pulse-height spectra of gamma-rays from radioactive sources and (n,gamma) reactions. The simulation is applicable to the measurement of gamma-rays in the energy region of 0.5-11.0 MeV.