Behaviour of ion temperature in electron and ion heating regimes observed with ECH, NBI and ICRF discharges of LHD
Behaviour of ion temperature in electron and ion heating regimes observed with ECH, NBI and ICRF discharges of LHD
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DOI：
10.1088/0029-5515/42/10/301
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发表时间：
2002-09
期刊：
影响因子：
3.3
通讯作者：
S. Morita;M. Goto;S. Kubo;S. Murakami;K. Narihara;M. Osakabe;T. Seki;Y. Takeiri;Kokichi Tanaka;H. Yamada;H. Funaba;H. Idei;K. Ida;K. Ikeda;S. Inagaki;O. Kaneko;K. Kawahata;A. Komori;R. Kumazawa;S. Masuzaki;J. Miyazawa;T. Morisaki;O. Motojima;S. Muto;T. Mutoh;Y. Nagayama;Y. Nakamura;K. Nishimura;S. Ohdachi;N. Ohyabu;Y. Oka;T. Ozaki;B. Peterson;S. Sakakibara;R. Sakamoto;M. Sasao;K. Sato;T. Shimozuma;M. Shoji;H. Suzuki;K. Toi;T. Tokuzawa;K. Tsumori;K. Watanabe;T. Watari;I. Yamada
中科院分区：
文献类型：
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作者：
S. Morita;M. Goto;S. Kubo;S. Murakami;K. Narihara;M. Osakabe;T. Seki;Y. Takeiri;Kokichi Tanaka;H. Yamada;H. Funaba;H. Idei;K. Ida;K. Ikeda;S. Inagaki;O. Kaneko;K. Kawahata;A. Komori;R. Kumazawa;S. Masuzaki;J. Miyazawa;T. Morisaki;O. Motojima;S. Muto;T. Mutoh;Y. Nagayama;Y. Nakamura;K. Nishimura;S. Ohdachi;N. Ohyabu;Y. Oka;T. Ozaki;B. Peterson;S. Sakakibara;R. Sakamoto;M. Sasao;K. Sato;T. Shimozuma;M. Shoji;H. Suzuki;K. Toi;T. Tokuzawa;K. Tsumori;K. Watanabe;T. Watari;I. Yamada
使用新安装的带有 CCD 探测器的晶体光谱仪，在大型螺旋装置 (LHD) 的 ECH、NBI 和 ICRF 等离子体中，通过 Ti XXI (2.61 A) 和 Ar XVII (3.95 A) X 射线线的多普勒展宽测量等离子体中心的离子温度。用电子密度分析在0.6和3.5keV范围内获得的离子温度并与电子温度进行比较。在离子加热状态（Pi≥Pe）下操作的低密度（ne<1013 cm−3）H少数ICRF放电中发现了Ti>Te的新参数范围，而在电子加热状态（Pi<Pe）下操作的NBI放电中离子温度大致等于电子温度。 ICRF 和 ICRF + NBI 放电中的离子温度与整体离子的输入功率与离子密度 (Pi/ni) 相关。结果，它们之间获得了良好的相关性，并且还表明在 Pi/ni<5 (MW/1013 cm−3) 范围内，随着 Pi 的增加，离子温度明显升高。
Ion temperature at the plasma centre has been measured from Doppler broadening of Ti XXI (2.61 A) and Ar XVII (3.95 A) x-ray lines using a newly installed crystal spectrometer with CCD detector in ECH, NBI and ICRF plasmas of Large Helical Device (LHD). The ion temperature obtained in a range of 0.6 and 3.5 keV was analysed with electron density and compared with electron temperature. A new parameter range of Ti>Te was found in low-density (ne<1013 cm−3) H-minority ICRF discharges operated in the ion-heating regime (Pi≥Pe), whereas the ion temperature was roughly equal to the electron temperature in NBI discharges operated in the electron-heating regime (Pi<Pe). The ion temperature in the ICRF and ICRF + NBI discharges was correlated with the input power to bulk ions over the ion density (Pi/ni). As a result, a good correlation was obtained between them and it also indicated a clear rise of the ion temperature for the increasing Pi in a range of Pi/ni<5 (MW/1013 cm−3).