Current status of the Si crystal analyzer near backscattering TOF spectrometer DNA in a spallation neutron source at J-PARC

Takahashi, Nobuaki; Shibata, Kaoru*; Yamada, Takeshi*; Kamazawa, Kazuya*; Kawakita, Yukinobu  ; Nakajima, Kenji  ; Kambara, Wataru; Inamura, Yasuhiro  ; Nakatani, Takeshi ; Aizawa, Kazuya  ; Arai, Masatoshi; Soyama, Kazuhiko  ; Oikawa, Kenichi   ; Tanaka, Hiromichi; Iwahashi, Takaaki; Ito, Yukihiro; Hosoya, Tomonori; Yamauchi, Yasuhiro; Fujiwara, Satoru; Sato, Taku*; Mezei, F.*; Mutka, H.*; Neumann, D. A.*

A Si crystal analyzer near backscattering spectrometer DNA which covers the area of the micro-eV energy range in the Q-E space, where it is expected to explore sciences on atomic, molecular and spin dynamics in the nanosecond time range has been installed at BL02 of the Materials and Life Science Experimental Facility (MLF) of the Japan Proton Accelerator Research Complex (J-PARC) until at the end of February 2012. Then, various on-beam commissioning has been done for about a year with handling continuing user program. In this report, we will introduce specifications, current status of the instrument.