抄録
Ibaraki Biological Crystal Diffractometer is under construction at J-PARC as a pulsed-neutron diffractometerfor biological macromolecules. This diffractometer is designed to measure crystals up to 150 Å in unitcell dimensions with the measurement efficiency of 100 times better than that of the present diffractometer BIX-4 at JRR-3 in JAEA. The complementarity to the ultra-high resolution X-ray analysis will bereferred to after showing the recent development of neutron and X-ray protein crystallography.
