藤原大 (Yutaka Fujiwara) - マイポータル

基本情報

所属: 核融合科学研究所ヘリカル研究部プラズマ加熱物理研究系助教

研究者番号: 10804247
ORCID iD: https://orcid.org/0000-0003-2985-060X
J-GLOBAL ID: 202101004624186370
researchmap会員ID: R000025946

研究分野

論文

Observation of a Fast-Ion Profile Stiffness Due To the Alfvén Eigenmode

Shuji Kamio, Yutaka Fujiwara, Kenichi Nagaoka, Hideo Nuga, Hiroyuki Yamaguchi, Ryosuke Seki, Kunihiro Ogawa, Yasuko Kawamoto, Mitsutaka Isobe, Scott Karbashewski …

JOURNAL OF FUSION ENERGY 44(2) 2025年11月8日
A comprehensive evaluation of the thermal neutron detection efficiency by a single crystal CVD diamond detector with a LiF thermal neutron converter

Makoto Kobayashi, Sachiko Yoshihashi, Kunihiro Ogawa, Mitsutaka Isobe, Siriyaporn Sangaroon, Shuji Kamio, Yutaka Fujiwara, Masaki Osakabe

FUSION ENGINEERING AND DESIGN 179 2022年6月
Studies of energetic particle transport induced by multiple Alfvén eigenmodes using neutron and escaping energetic particle diagnostics in Large Helical Device deuterium plasmas

Kunihiro Ogawa, Mitsutaka Isobe, Shuji Kamio, Hideo Nuga, Ryosuke Seki, Siriyaporn Sangaroon, Hiroyuki Yamaguchi, Yutaka Fujiwara, Eiji Takada, Sadayoshi Murakami …

Nuclear Fusion 62 112001 2022年5月査読有り
Estimation of the Tritium Yields in Deuterium Fusion Plasmas Considering the Fast-Ion Velocity Distribution Function

Hideo NUGA, Ryosuke SEKI, Kunihiro OGAWA, Shuji KAMIO, Yutaka FUJIWARA, Hiroyuki YAMAGUCHI, Masaki OSAKABE, Mitsutaka ISOBE, Masayuki YOKOYAMA

Plasma and Fusion Research 17 2402023-2402023 2022年4月22日
A study of beam ion and deuterium-deuterium fusion born triton transports due to energetic particle driven magnetohydrodynamic instability in the Large Helical Device deuterium plasmas

Kunihiro Ogawa, Mitsutaka Isobe, Hideo Nuga, Shuji Kamio, Yutaka Fujiwara, Makoto Kobayashi, Siriyaporn Sangaroon, Eiji Takada, Ryosuke Seki, Hiroyuki Yamaguchi …

Nuclear Fusion 2021年6月22日
Characteristics of neutron emission profile from neutral beam heated plasmas of the Large Helical Device at various magnetic field strengths

K Ogawa, M Isobe, S Sugiyama, D A Spong, S Sangaroon, R Seki, H Nuga, H Yamaguchi, S Kamio, Y Fujiwara …

Plasma Physics and Controlled Fusion 2021年6月1日
Analysis of NB Fast-Ion Loss Mechanisms in MHD Quiescent LHD Plasmas

Hideo NUGA, Ryohsuke SEKI, Kunihiro OGAWA, Shuji KAMIO, Yutaka FUJIWARA, Hiroyuki YAMAGUCHI, Masaki OSAKABE, Mitsutaka ISOBE, Sadayoshi MURAKAMI, Masayuki YOKOYAMA

Plasma and Fusion Research 16 2402052-2402052 2021年4月21日
Characterization of the New Vertical Neutron Camera Designed for the Low Neutron Emission Rate Plasma in Large Helical Device

Siriyaporn Sangaroon, Kunihiro Ogawa, Mitsutaka Isobe, Yutaka Fujiwara, Hiroyuki Yamaguchi, Shuji Kamio, Ryosuke Seki, Hideo Nuga, Makoto I. Kobayashi, Masaki Osakabe

Plasma and Fusion Research 16 1-6 2021年
Initial Results of Hydrogen and Deuterium Beam Ion Simultaneous Transport due to Toroidal Alfvén Eigenmode in the Large Helical Device*)

Shuji Kamio, Yutaka Fujiwara, Kunihiro Ogawa, Ryosuke Seki, Kenichi Nagaoka, Hideo Nuga, Siriyaporn Sangaroon, Mitsutaka Isobe, Masaki Osakabe, Chio Zong Cheng

Plasma and Fusion Research 16(1) 2402044-2402044-4 2021年
Observation of Arc Trails with Significant Damage due to Glow Discharge Wall Conditioning in the Large Helical Device

Yuki Hayashi, Suguru Masuzaki, Gen Motojima, Dogyun Hwangbo, Yutaka Fujiwara, Mingzhong Zhao, the LHD Experiment Group

Plasma and Fusion Research 16 1202061-1 2021年
Characteristics of plasma parameters and turbulence in the isotope-mixing and the non-mixing states in hydrogen–deuterium mixture plasmas in the large helical device

K. Ida, M. Yoshinuma, K. Tanaka, M. Nakata, T. Kobayashi, Y. Fujiwara, R. Sakamoto, G. Motojima, S. Masuzaki

Nuclear Fusion 2021年1月1日
Neutron-induced signal on the single crystal chemical vapor deposition diamond-based neutral particle analyzer

S. Kamio, Y. Fujiwara, K. Ogawa, M. I. Kobayashi, S. Sangaroon, M. Isobe, R. Seki, H. Nuga, M. Osakabe, S. Matsuyama …

Review of Scientific Instruments 91(11) 113304-113304 2020年11月1日
Fast-ion D alpha diagnostic with 3D-supporting FIDASIM in the Large Helical Device

Y. Fujiwara, S. Kamio, H. Yamaguchi, A. V. Garcia, L. Stagner, H. Nuga, R. Seki, K. Ogawa, M. Isobe, M. Yokoyama …

Nuclear Fusion 2020年11月1日
Observation of clump structure in transported particle orbit using an upgraded neutral particle analyzer during TAE burst in LHD

S. Kamio, Y. Fujiwara, K. Nagaoka, K. Ogawa, R. Seki, H. Yamaguchi, H. Nuga, M. Isobe, M. Osakabe, C.Z. Cheng

Nuclear Fusion 2020年11月1日
Energetic particle transport and loss induced by helically-trapped energetic-ion-driven resistive interchange modes in the Large Helical Device

K. Ogawa, M. Isobe, S. Sugiyama, H. Matsuura, D.A. Spong, H. Nuga, R. Seki, S. Kamio, Y. Fujiwara, H. Yamaguchi …

Nuclear Fusion 60(11) 112011-112011 2020年11月1日
Progress in modelling fast-ion D-alpha spectra and neutral particle analyzer fluxes using FIDASIM

B. Geiger, L. Stagner, W.W. Heidbrink, R. Dux, R. Fischer, Y. Fujiwara, A.V. Garcia, A. S. Jacobsen, A. Jansen van Vuuren, A. N. Karpushov …

Plasma Physics and Controlled Fusion 2020年10月1日
Performance of the newly installed vertical neutron cameras for low neutron yield discharges in the Large Helical Device

S. Sangaroon, K. Ogawa, M. Isobe, M. I. Kobayashi, Y. Fujiwara, S. Kamio, R. Seki, H. Nuga, H. Yamaguchi, M. Osakabe

Review of Scientific Instruments 91(8) 083505-083505 2020年8月1日
Studies of the fast ion confinement in the Large Helical Device by using neutron measurement and integrated codes

H. Nuga, R. Seki, K. Ogawa, S. Kamio, Y. Fujiwara, M. Osakabe, M. Isobe, T. Nishitani, M. Yokoyama

Journal of Plasma Physics 2020年6月
Deuterium experiment with large-scale negative ion source for large helical device

H. Nakano, M. Kisaki, K. Ikeda, K. Tsumori, K. Nagaoka, Y. Haba, S. Masaki, Y. Fujiwara, S. Kamio, and M. Osakabe

Japanese Journal of Applied Physics 59(SHHC09) 2020年3月11日査読有り
Enhancement of an e parallel B type neutral particle analyzer with high time resolution in the Large Helical Device

Y. Fujiwara, S. Kamio, K. Ogawa, H. Yamaguchi, R. Seki, H. Nuga, T. Nishitani, M. Isobe, M. Osakabe

Journal of Instrumentation 15(2) 2020年2月14日

もっとみる

MISC

FIDA計測を用いたLHDにおけるカウンター入射高速イオンの閉じ込め調査

川本靖子, 川本靖子, 長壁正樹, 長壁正樹, 小川国大, 小川国大, 山口裕之, 山口裕之, 磯部光孝, 磯部光孝 …

プラズマ・核融合学会年会(Web) 40th 2023年