20-23 October 2019
MLZ Garching
Europe/Berlin timezone

Fast Neutron Imaging Capability at NOBORU and RADEN of J-PARC

23 Oct 2019, 09:30
30m
Radiochemie München RCM

Radiochemie München RCM

Talk Applications Detectors

Speaker

Dr Yusuke Tsuchikawa (Japan Atomic Energy Agency)

Description

Neutron beamlines of the Materials and Life science experimental Facility (MLF) utilizes short-pulsed neutrons produced by 3-GeV proton beam irradiation at the Japan Proton Accelerator Research Complex (J-PARC). The most probable energy of neutrons produced in spallation reactions is around ~ MeV although high energy neutrons up to ~ GeV are also produced. Two beamlines, NOBORU and RADEN, are available to utilize such fast neutrons for imaging experiments. Massive steel collimators, filters to reduce the prompt gamma-ray produced at the moment of proton pulse injection, and thick shields of sample room are equipped to utilize wide neutron-energy-range. The neutron’s penetration power, generally increases with its energy, is expected to provide a unique capability for non-destructive inspection of large objects or high neutron absorbing materials: architectural and civil engineering structures, simulated melted core material containing boron, etc.

In this presentation the characteristics of NOBORU and RADEN are discussed from a viewpoint of neutron imaging with higher energy neutrons. Then some results of imaging with neutrons between 0.5 eV and ~MeV are presented. The authors also introduce an activity of developing a neutron imaging detector based on a lithium glass scintillator and a multi-anode photomultiplier tube to obtain a high efficiency at higher energies.

Primary authors

Dr Yusuke Tsuchikawa (Japan Atomic Energy Agency) Dr Tetsuya Kai (Japan Atomic Energy Agency) Dr Takenao Shinohara (Japan Atomic Energy Agency) Dr Joseph D. Parker (Comprehensive Research Organization for Science and Society) Dr Kenichi Oikawa (Japan Atomic Energy Agency)

Presentation Materials