title: Progress in development of neutron energy spectrometer for deuterium plasma operation in KSTAR.
abstract: Two types of DD neutron energy spectrometer (NES) are under development for deuterium plasma operation in KSTAR to understand behavior of beam ions in the plasma. One is based on the state-of-the-art nuclear emulsion technique. The other is based on a coincidence detection of a recoiled proton and a scattered neutron caused by an elastic scattering of an incident DD neutron, which is called an associated particle coincidence counting-NES. The prototype NES systems were installed at J-port in KSTAR in 2012. During the 2012 and 2013 experimental campaigns, multiple shots-integrated neutron spectra were preliminarily obtained by the nuclear emulsion-based NES system.
authors.affiliation: Nagoya University, Furo-cho, Chikusa-ku, Nagoya 464-8603, Japan.
authors.forename: H
authors.initials: H
authors.lastname: Tomita
authors.affiliation: Nagoya University, Furo-cho, Chikusa-ku, Nagoya 464-8603, Japan.
authors.forename: F
authors.initials: F
authors.lastname: Yamashita
authors.affiliation: Nagoya University, Furo-cho, Chikusa-ku, Nagoya 464-8603, Japan.
authors.forename: Y
authors.initials: Y
authors.lastname: Nakayama
authors.affiliation: Nagoya University, Furo-cho, Chikusa-ku, Nagoya 464-8603, Japan.
authors.forename: K
authors.initials: K
authors.lastname: Morishima
authors.affiliation: Nagoya University, Furo-cho, Chikusa-ku, Nagoya 464-8603, Japan.
authors.forename: Y
authors.initials: Y
authors.lastname: Yamamoto
authors.affiliation: Nagoya University, Furo-cho, Chikusa-ku, Nagoya 464-8603, Japan.
authors.forename: Y
authors.initials: Y
authors.lastname: Sakai
authors.affiliation: Diagnostics Technology Team, ITER Korea, National Fusion Research Institute, Daejeon 305-333, Republic of Korea.
authors.forename: M S
authors.initials: MS
authors.lastname: Cheon
authors.affiliation: The Graduate University for Advanced Studies, 322-6 Oroshi-cho, Toki 509-5292, Japan.
authors.forename: M
authors.initials: M
authors.lastname: Isobe
authors.affiliation: National Institute for Fusion Science, 322-6 Oroshi-cho, Toki 509-5292, Japan.
authors.forename: K
authors.initials: K
authors.lastname: Ogawa
authors.affiliation: Nagoya University, Furo-cho, Chikusa-ku, Nagoya 464-8603, Japan.
authors.forename: S
authors.initials: S
authors.lastname: Hayashi
authors.affiliation: Nagoya University, Furo-cho, Chikusa-ku, Nagoya 464-8603, Japan.
authors.forename: J
authors.initials: J
authors.lastname: Kawarabayashi
authors.affiliation: Nagoya University, Furo-cho, Chikusa-ku, Nagoya 464-8603, Japan.
authors.forename: T
authors.initials: T
authors.lastname: Iguchi