Zobrazeno 1 - 10
of 390
pro vyhledávání: '"Motoshi Goto"'
Autor:
Tetsutarou Oishi, Shigeru Morita, Masahiro Kobayashi, Gakushi Kawamura, Yasuko Kawamoto, Tomoko Kawate, Suguru Masuzaki, Chihiro Suzuki, Motoshi Goto
Publikováno v:
Plasma, Vol 6, Iss 2, Pp 308-321 (2023)
The ergodic layer in the Large Helical Device (LHD) consists of stochastic magnetic fields exhibiting a three-dimensional structure that is intrinsically formed by helical coils. Spectroscopic diagnostics was employed in the extreme ultraviolet (EUV)
Externí odkaz:
https://doaj.org/article/a959f8865f864ae58979cb9c88727824
Autor:
Tetsutarou Oishi, Shigeru Morita, Daiji Kato, Izumi Murakami, Hiroyuki A. Sakaue, Motoshi Goto, Yasuko Kawamoto, Tomoko Kawate, Ryota Nishimura, Hiroyuki Takahashi, Kenji Tobita
Publikováno v:
Nuclear Fusion, Vol 64, Iss 10, p 106011 (2024)
Spectroscopic studies of emissions released from tungsten ions combined with a pellet injection technique have been conducted in Large Helical Device for contribution to the tungsten transport study in tungsten divertor fusion devices and for expansi
Externí odkaz:
https://doaj.org/article/136c6985b3f743cc85ede820d224c93c
Autor:
Motoshi Goto, Gen Motojima, Ryuichi Sakamoto, Bernard Pégourié, Akinobu Matsuyama, Tetsutarou Oishi, Tomoko Kawate, Yasuko Kawamoto
Publikováno v:
Atoms, Vol 12, Iss 1, p 1 (2024)
We have recently incorporated the occupation probability formalism (OPF) in the simulation model [C. Stehlé and S. Jacquemot, Astron. Astrophys. 271, 348 (1993)] to have a smooth transition from discrete lines to continuum spectrum in the wavelength
Externí odkaz:
https://doaj.org/article/80bd29f25e454fbcbc9d8dc9ee7b1ec4
Publikováno v:
Atoms, Vol 11, Iss 6, p 94 (2023)
In this study, eight emission lines in the visible wavelength range of neutral helium were used to diagnose the electron density and temperature of the Large Helical Device (LHD) helium plasma instead of the conventional three-line method. The collis
Externí odkaz:
https://doaj.org/article/0a95082857d246a6a7f6af2927b51514
Autor:
Taisuke Kobayashi, Masahiro Kobayashi, Naofumi Iwama, Arseniy Kuzmin, Motoshi Goto, Gakushi Kawamura
Publikováno v:
Nuclear Materials and Energy, Vol 19, Iss , Pp 239-243 (2019)
Three dimensional (3D) distribution of impurity emission intensity is obtained from two dimensional (2D) image using newly developed single field-of-view tomography scheme. Spectrometer with multi-channel fiber array views the entire edge region of s
Externí odkaz:
https://doaj.org/article/06e19ef357aa431e942063cdcf7343a1
Autor:
Tetsutarou Oishi, Shigeru Morita, Daiji Kato, Izumi Murakami, Hiroyuki A. Sakaue, Yasuko Kawamoto, Motoshi Goto, the LHD Experiment Group
Publikováno v:
Nuclear Materials and Energy, Vol 26, Iss , Pp 100932- (2021)
Magnetic-dipole (M1) lines of W29+~W39+ were successfully observed in the vacuum-ultraviolet (VUV) wavelength range of 500–900 Å in the Large Helical Device (LHD). Tungsten ions are distributed in the NBI-heated LHD plasma by injecting a pellet co
Externí odkaz:
https://doaj.org/article/5b57d5df2afd489cb644b7cddd161d2b
Autor:
Tetsutarou Oishi, Shigeru Morita, Daiji Kato, Izumi Murakami, Hiroyuki A. Sakaue, Yasuko Kawamoto, Tomoko Kawate, Motoshi Goto
Publikováno v:
Atoms, Vol 9, Iss 3, p 69 (2021)
Spectroscopic studies for emissions released from tungsten ions have been conducted in the Large Helical Device (LHD) for contribution to the tungsten transport study in tungsten divertor fusion devices and for expansion of the experimental database
Externí odkaz:
https://doaj.org/article/a2bbac403b6d4047ac308a59894d3d18
Publikováno v:
Atoms; Volume 11; Issue 6; Pages: 94
In this study, eight emission lines in the visible wavelength range of neutral helium were used to diagnose the electron density and temperature of the Large Helical Device (LHD) helium plasma instead of the conventional three-line method. The collis
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=multidiscipl::8be83f663bbab8ccb1826d6dcad13629
Autor:
Tetsutarou Oishi, Shigeru Morita, Xianli Huang, Hongming Zhang, Yang Liu, Shuyu Dai, Masahiro Kobayashi, Gakushi Kawamura, Motoshi Goto
Publikováno v:
Nuclear Materials and Energy, Vol 12, Iss , Pp 762-767 (2017)
A space-resolved spectroscopy using a 3m normal incidence vacuum ultraviolet (VUV) spectrometer was developed to measure the VUV emission profiles in wavelength range of 300–3200Å from impurities in the edge plasmas in Large Helical Device (LHD).
Externí odkaz:
https://doaj.org/article/68e2d152a5b946af9c91dc1aa8d96fb0
Autor:
Yasuko Kawamoto, Shigeru Morita, Gakushi Kawamura, Motoshi Goto, Tetsutarou Oishi, Tomoko Kawate, Masahiro Kobayashi, Mamoru Shoji
Publikováno v:
Fusion Science and Technology. 78:537-548
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::dd2e583992f97af7eaf05c52ba4afe31
https://doi.org/10.1080/15361055.2022.2068897
https://doi.org/10.1080/15361055.2022.2068897