17-18 November 2023
Asia/Tokyo timezone

Status of the µPIC-based Neutron Imaging Detector (µNID) at J-PARC

18 Nov 2023, 09:25


Joseph Parker (CROSS Neutron Science and Technology Center)


The µPIC-based Neutron Imaging Detector (µNID) is one of the main imaging detectors in use at the energy-resolved neutron imaging instrument RADEN at the J-PARC Materials and Life Science Experiment Facility (MLF). The µNID takes advantage of the pulsed neutron beam of the MLF for accurate determination of neutron energy via time-of-flight to measure the energy-dependent neutron transmission of samples. This allows the extraction of quantitative information on the microscopic structure of the sample, such as crystal structure and strain, internal temperature, or magnetic field information. In this presentation, we will discuss our ongoing development efforts, including studies of µPIC aging under intense neutron irradiation and recent on-beam tests of the triaxial µPIC (for improved rate) and a 5.5 cm x 5.5 cm area, 215µm-pitch µPIC (for improved spatial resolution).

Presentation Materials