3-8 September 2017
The Open University, Milton Keynes, UK.
Europe/London timezone

Development of position-sensitive scintillation neutron detector for a new protein crystal diffractometer at J-PARC MLF

7 Sep 2017, 12:40
1h 50m
Hub Theatre (OU) ()

Hub Theatre (OU)

The Open University, Walton Hall, Milton Keynes, MK7 6AA


Dr Tatsuya Nakamura (Japan Atomic Energy Agency, J-PARC, MLF)


A high spatial resolution, a large-area position-sensitive scintillation neutron detector module has been developed for a new time-of-flight Laue single crystal diffractometer to be constructed in the J-PARC MLF. We have developed a prototype detector that has a spatial resolution of 2.5 mm with a neutron-sensitive area of 320 x 320 mm2 based on a scintillator / wavelength shifting fiber technology.
The new neutron diffractometer, tentatively called jBIX, aims at collecting diffraction data from biomolecular samples that have large unit cell lengths more than 200 Å. The instrument requires a large number of detector modules that surround the sample, where each detector module should have a spatial resolution of 1-3 mm, a large detection area of 50 x 50 cm2, and high detection efficiency more than 50% for thermal neutrons. We have successfully produced a first prototype detector for this purpose and its detector performances are evaluated. In this paper we present recent experimental results obtained with these prototype detectors.

Primary authors

Dr Tatsuya Nakamura (Japan Atomic Energy Agency, J-PARC, MLF) Dr Kentaro Toh (Japan Atomic Energy Agency, J-PARC) Mr Noriaki Tsutsui (Japan Atomic Energy Agency) Mr Masumi Ebine (Japan Atomic Energy Agency) Mr Atsushi Birumachi (Japan Atomic Energy Agency) Dr Kaoru Sakasai (Japan Atomic Energy Agency, J-PARC)

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