Development of energy-resolved neutron imaging at RADEN in J-PARC MLF

Shinohara, Takenao   ; Kai, Tetsuya   ; Oikawa, Kenichi   ; Hiroi, Kosuke  ; Su, Y. H.  ; Nakatani, Takeshi ; Seki, Yoshichika; Tsuchikawa, Yusuke ; Hayashida, Hirotoshi*; Parker, J. D.*; Matsumoto, Yoshihiro*; Kiyanagi, Yoshiaki*

The Energy-Resolved Neutron Imaging System, RADEN, in the Materials and Life Science Experimental Facility (MLF) of J-PARC, has been constructed as the world's first dedicated instrument to the pulsed neutron imaging. RADEN is designed to conduct energy-resolved neutron imaging experiments like Bragg edge, resonance absorption and pulsed polarized neutron imaging by fully utilizing the short-pulsed neutron's nature, together with the conventional neutron radiography and tomography. The construction of RADEN was completed in 2014, and user operation was started from April 2015 after commissioning studies using the neutron beam. In addition to the user programs, the instrument group continues further technical developments for advanced energy-resolved neutron imaging and improving the performance of devices, especially the counting type imaging detectors.