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Tanaka, Ichiro*; Ohara, Takashi; Kurihara, Kazuo; Kusaka, Katsuhiro; Ozeki, Tomoji*; Niimura, Nobuo*
no journal, ,
Ibaraki Prefectural Government in Japan has started to construct a neutron diffractometer for biological macromolecules for industrial use at J-PARC. The diffractometer is designed to cover the sample crystals which have their cell edges less than 135 . It is expected to measure 100 samples per year if they have 2mm in crystal volume. The efficiency is more than 50 times larger than the present high performance diffractometers, BIX-3 and BIX-4 in JRR-3 reactor, in JAERI. To realize this performance, three important and key items should be developed; an detector, neutron optics, and a software in data reduction. The current status of these developments will be reported with the latest parameters of this diffractometer.