Development status of position-sensitive neutron detectors for J-PARC in JAERI—a comprehensive overview

We have developed various kinds of position-sensitive neutron detectors in JAERI for the J-PARC project. The neutron imaging detectors using scintillators have been developed aiming for high counting rate, high spatial resolution, high neutron gamma-rays discrimination, and high detection efficiency. The development included various kinds of phosphors, scintillators, and read-out methods. Another is a two-dimensional gaseous neutron detector, which is based on a microstrip technology. The development of the microstrip gas chamber that has individual strip read-out and of the instrument system with a capability of secondary-particle discrimination is underway for a high spatial resolution and high detection efficiency with moderate area coverage.