6-year experiences of neutron imaging at NOBORU at J-PARC MLF

Oikawa, Kenichi; Kai, Tetsuya; Shinohara, Takenao; Harada, Masahide; Oi, Motoki; Sakai, Kenji; Maekawa, Fujio; Kiyanagi, Yoshiaki*

no journal, , 

Neutron imaging using a time-of-flight (TOF) method at spallation neutron source has very unique capability. Conventional neutron radiography, including computed tomography, can be carried out by use of camera type detector. In contrast, two dimensional counter with a time analyzer provides 3D data; x, y, and TOF which corresponds to the wavelength (energy) of neutrons. Since 2008, test experiments for TOF imaging has been started at NOBORU at J-PARC. TOF imaging applying resonance peak, Bragg edge, and polarized neutron have been carried out extensively. Our experiences of neutron imaging at NOBORU were fully applied to the novel imaging instrument at BL-22 of MLF now under construction.