Status and future perspectives of nuclear data measurements at J-PARC MLF BL04

Harada, Hideo   ; Oshima, Masumi; Kimura, Atsushi   ; Goko, Shinji*; Ota, Masayuki*; Furutaka, Kazuyoshi  ; Kin, Tadahiro; Kitatani, Fumito  ; Koizumi, Mitsuo ; Nakamura, Shoji  ; Toh, Yosuke   ; Igashira, Masayuki*; Katabuchi, Tatsuya*; Mizumoto, Motoharu*; Kiyanagi, Yoshiaki*; Kino, Koichi*; Furusaka, Michihiro*; Hiraga, Fujio*; Kamiyama, Takashi*; Hori, Junichi*; Fujii, Toshiyuki*; Takamiya, Koichi*

The neutron-nucleus reaction instrument (NNRI) was installed at the J-PARC MLF BL04, which was designed for measuring neutron cross sections with a neutron time-of-flight technique. This includes two kinds of capture -ray spectrometers: the 4 Ge spectrometer and the NaI spectrometers. The measurements of neutron capture cross sections for minor actinides and fission products have been started at the NNRI using these spectrometers since 2009. In this paper, the preliminary results and future perspectives are discussed.