Zobrazeno 1 - 10
of 23
pro vyhledávání: '"Akimasa Funahashi"'
Autor:
Akimasa Funahashi, Hiromasa Ninomiya, Michiya Shimada, Masahiro Saidoh, Seio Sengoku, Nobuyuki Hosogane, Shunji Tsuji
Publikováno v:
Journal of Nuclear Materials. :vii-viii
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::573f04fda79327f70f2e974bdf22aba6
https://doi.org/10.1016/0022-3115(95)80014-x
https://doi.org/10.1016/0022-3115(95)80014-x
Publikováno v:
Japanese Journal of Applied Physics. 16:139-147
A 10-ch neutral particle energy analyser and its application to JAERI-tokamak devices are described. The analyser is a 45-degree parallel-plate electrostatic type with ten ion detectors.The analyser was calibrated for the energy and transmission effi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1c0b2f9a4bbe4afbe3b00d058c91ad71
https://doi.org/10.1143/jjap.16.139
https://doi.org/10.1143/jjap.16.139
Publikováno v:
Japanese Journal of Applied Physics. 16:1227-1233
The dependence of the ion temperature on various parameters (line-averaged electron density e, plasma current Ip and toroidal magnetic field Bt) was investigated for the JAERI-tokamak devices JFT-2 and JFT-2a with a 10-channel neutral particle energy
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f34f6c9846bb5300f2594af5ba9e976b
https://doi.org/10.1143/jjap.16.1227
https://doi.org/10.1143/jjap.16.1227
Publikováno v:
Japanese Journal of Applied Physics. 17:1263-1270
A 2-mm wave digital interferometer without source frequency modulation was fabricated to measure the central electron density of tokamak discharges in an upgraded DIVA device. Two methods of processing the interferometic fringe signals were presented
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0759c4185a1914703a92b73be8de583d
https://doi.org/10.1143/jjap.17.1263
https://doi.org/10.1143/jjap.17.1263
Autor:
Satoshi Kasai, Shigeru Konoshima, Akimasa Funahashi, Tatsuo Sugie, Kazuo Mori, Masayuki Nagami
Publikováno v:
Japanese Journal of Applied Physics. 17:1625-1631
A 3-m grazing-incidence monochromator was calibrated absolutely in the wavelength region from 40 to 1100 A by means of tokamak discharges. The monochromator was equipped with a platinum-coated ruled grating blazed at 146 A and a windowless Cu–Be Ph
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6e80917eb6bc40de04cdd91c50671642
https://doi.org/10.1143/jjap.17.1625
https://doi.org/10.1143/jjap.17.1625
Publikováno v:
Japanese Journal of Applied Physics. 17:903-910
Radiation from the Hα-line has been investigated in the hydrogen tokamak plasma obtained under a typical JFT-2a discharge. The profiles of the Hα-line were measured along both perpendicular and tangential paths to the toroidal magnetic field. The m
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e4ef831ca45b4438d2a2eeb14795e951
https://doi.org/10.1143/jjap.17.903
https://doi.org/10.1143/jjap.17.903
Autor:
Toshihiko Yamauchi, Akimasa Funahashi, Tohru Matoba, Tokiyoshi Itagaki, Teruaki Shoji, Katsuaki Kumagai, Norio Suzuki
Publikováno v:
Japanese Journal of Applied Physics. 18:611-619
Measurements were made on electron temperature and density profiles of ohmically heated hydrogen plasmas in the JFT-2 tokamak device by using Thomson scattering of light from a Q-switched ruby laser. The measured electton temperature ranged from 0.08
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::93e809d54211ea249ee0c6a0de8ec819
https://doi.org/10.1143/jjap.18.611
https://doi.org/10.1143/jjap.18.611
Publikováno v:
Japanese Journal of Applied Physics. 18:1127-1133
The light scattering spectrum from a high temperature plasma is calculated for the second order in v/c (c=light speed) and the second order approximate formula is obtained from the calculation. The blue side shift of the peak derived from the second
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::14ed3f243396489e121b98864c8f2bd4
https://doi.org/10.1143/jjap.18.1127
https://doi.org/10.1143/jjap.18.1127
Autor:
Shin Yamamoto, Akimasa Funahashi
Publikováno v:
Physica Scripta. 23:87-96
Impurity control experiments have been summarized in DIVA and JFT-2 at JAERI. Plasma purity improved by a divertor, by a titanium (medium-Z) wall or by a carbon (low-Z) wall has remarkably favorable effects on confinement, stability and high-density
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::142f11e2a840ec136f37823681e35b38
https://doi.org/10.1088/0031-8949/23/2/003
https://doi.org/10.1088/0031-8949/23/2/003
Autor:
Akimasa Funahashi, Susumu Takeda
Publikováno v:
Kakuyūgō kenkyū. 14:260-275
A microwave reflection probe is applied to the measurement of very high electron densities and collision frequencies in plasmas produced by shock waves. The electron density and collision frequency are calculated from a complex reflection coefficient
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::05267c2759858bfec99d505d3e634a2b
https://doi.org/10.1585/jspf1958.14.260
https://doi.org/10.1585/jspf1958.14.260