Current status of the development of a novel 2D detector system for iBIX (IBARAKI biological crystal diffractometer) in J-PARC

Katagiri, Masaki; Nakamura, Tatsuya; Ebine, Masumi; Birumachi, Atsushi; Soyama, Kazuhiko; Hosoya, Takaaki

IBARAKI Biological Crystal Diffractometer "iBIX" in J-PARC/MLF is a new single-crystal pulsed-neutron diffractometor using TOF Laue method, and is used for both organic-small molecules and bio-macromolecules. The detector for iBIX requires high position and time resolution, and large sensitive area in order to cover the large scattering angle. We has developed a new 2D-scintillator detector (wavelength-shifting fiber-readout) system and TOF data acquisition system. This detector has about 70% of sensitive area (133133 mm), 1 s of time resolution and 1 mm of position resolution (0.52 mm/pixel).