Materials and Life Science Experimental Facility at the Japan Proton Accelerator Research Complex III: Neutron Devices and Computational and Sample Environments

Abstract

Neutron devices such as neutron detectors, optical devices including supermirror devices and 3 He neutron spin filters, and choppers are successfully developed and installed at the Materials Life Science Facility (MLF) of the Japan Proton Accelerator Research Complex (J-PARC), Tokai, Japan. Four software components of MLF computational environment, instrument control, data acquisition, data analysis, and a database, have been developed and equipped at MLF. MLF also provides a wide variety of sample environment options including high and low temperatures, high magnetic fields, and high pressures. This paper describes the current status of neutron devices, computational and sample environments at MLF.

High stereographic resolution texture and residual stress evaluation using time-of-flight neutron diffraction

“…TAKUMI (Moriai et al, 2006;Harjo et al, 2011) is an engineering materials TOF neutron diffractometer at the Materials and Life Science Experimental Facility (MLF), J-PARC (Takada et al, 2017;Nakajima et al, 2017;Sakasai et al, 2017), dedicated to in situ microstructure and stress evaluation during hot (or warm or cryogenic) deformation and ex situ microstructure and residual stress measurements of large engineering components ( Fig. 2a).…”

Materials and Life Science with Quantum Beams at the Japan Proton Accelerator Research Complex

“…The book has been separated into four review articles, as published in the journal Quantum Beam Science [8][9][10][11]. Central to all J-PARC experimental divisions is the landmark accelerator complex (Figure 1), composed of a linear accelerator (LINAC) feeding H − ions by stripping them to protons into the Rapid Cycle Synchrotron.…”

“…The four sections are divided into descriptions of the Pulsed Spallation Neutron Source [8], the Neutron Scattering Instruments [9], the Neutron Devices and Computational and Sample Environments [10], and the Muon Facility [11]. The four sections are divided into descriptions of the Pulsed Spallation Neutron Source [8], the Neutron Scattering Instruments [9], the Neutron Devices and Computational and Sample Environments [10], and the Muon Facility [11].…”

Development of Optical-fiber-based Neutron Detector Using Li-glass Scintillator for an Intense Neutron Field

“…Neutrons are widely used in various fields, such as homeland security, material science, and medical applications. (1)(2)(3) The neutron intensity or neutron flux is one of the most fundamental characteristics examined in neutron experiments. We are developing a quartz optical-fiberbased neutron detector as a real-time neutron monitor.…”