{"created":"2023-06-20T15:16:16.598007+00:00","id":9969,"links":{},"metadata":{"_buckets":{"deposit":"fdd8f8a0-5d11-4194-8d96-7cd9fab20534"},"_deposit":{"created_by":3,"id":"9969","owners":[3],"pid":{"revision_id":0,"type":"depid","value":"9969"},"status":"published"},"_oai":{"id":"oai:nifs-repository.repo.nii.ac.jp:00009969","sets":["8:32"]},"author_link":["70683","70631","70662","70641","70614","70619","70618","70646","70659","70678","70615","70644","70692","70632","70680","70629","70656","70684","70669","70677","70643","70695","70633","70627","70624","70636","70689","70623","70679","70640","70686","70655","70642","70670","70628","70645","70690","70638","70637","70658","70621","70613","70648","70682","70674","70653","70650","70668","70634","70612","70665","70672","70673","70663","70639","70617","70667","70657","70611","70630","70616","70693","70687","70622","70675","70685","70688","70676","70620","70660","70696","70652","70691","70661","70671","70647","70649","70651","70666","70626","70681","70625","70694","70664","70654","70635"],"item_5_biblio_info_7":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicIssueDates":{"bibliographicIssueDate":"2002-10-01","bibliographicIssueDateType":"Issued"},"bibliographic_titles":[{},{"bibliographic_title":"Research Report NIFS-Series","bibliographic_titleLang":"en"}]}]},"item_5_description_5":{"attribute_name":"抄録","attribute_value_mlt":[{"subitem_description":"Ion heating experiments have been carried out in LHD using ECH (82.5, 84.0, 168GHz, leq 1MW), ICRF (38.5MHz, leq 2.7MW) and NBI (H^circ beam: 160keV, leq 8MW).  The central ion temperature has been obtained from Doppler broadening of TiXXI (2.61 angstrom) and ArXVII (3.95 angstrom) x-ray lines measured with a newly installed crystal spectrometer.  In ECH discharges on-axis heating was recently done with the appearance of high T_e(0) of 6-10keV and high ion temperature of 2.2keV was observed at n_e=0.6x10^13 cm^-3.  A clear increment of T_i was also observed with enhancement of the electron-ion energy flow when the ECH pulse was added to the NBI discharge.  These results demonstrate the feasibility toward ECH ignition.  The clear T_i increment was also observed in ICRF discharges at low density ranges of 0.4- 0.6 x 10^13 cm^-3 with appearance of a new operational range of T_i(0)=2.8keV>T_e(0)=1.9keV.  In the low power ICRF heating (1MW), the fraction of bulk ion heating is estimated to be 60% to the total ICRF input power, which means P_i>P_e.  Higher T_i(0) up to 3.5keV was obtained for a combined heating of NBI (<4MW) and ICRF (1MW) at density ranges of 0.5-1.5x10^13 cm^-3.  The highest T_i(0) of 5keV was recorded in Ne NBI discharges at n_e <1x10^13 cm^-3 with the achievement of T_i(0)>T_e(0), whereas the T_i(0) remained at relatively low values of 2keV in H_2 or He NBI discharges.  The main reasons for the high T_i acievement in the Ne descharge are; 1) 30% increment of deposition power, 2) increase in P_i / n_i (11 times, P_i / n_i >> P_e/n_e, P_i<P_e) and 3) increase in 促tau_ei (3 times).  The obtained T_i (0) data can be plotted by a smooth function of P_i / n_i.","subitem_description_type":"Abstract"}]},"item_5_source_id_10":{"attribute_name":"ISSN","attribute_value_mlt":[{"subitem_source_identifier":"0915-633X","subitem_source_identifier_type":"ISSN"}]},"item_5_text_8":{"attribute_name":"報告書番号","attribute_value_mlt":[{"subitem_text_value":"NIFS-753"}]},"item_creator":{"attribute_name":"著者","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"Morita,  S.","creatorNameLang":"en"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Goto,  M.","creatorNameLang":"en"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Takeiri,  Y.","creatorNameLang":"en"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Miyazawa,  J.","creatorNameLang":"en"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Murakami,  S.","creatorNameLang":"en"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Narihara,  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