Investigation of Ion Temperature Characteristics in the HT-7 Tokamak
Characteristics of ion temperature measured with charge-exchange recombination spectroscopy （CXRS） were studied in Ohmic, lower-hybrid-wave （LHW） driven and ion-cyclotron- resonance-frequency （ICRF） heated plasmas in HT-7. The results indicate that the central ion temperature T10 follows the one-thi...
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| Published in | Plasma science & technology Vol. 13; no. 5; pp. 535 - 540 |
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| Main Author | |
| Format | Journal Article |
| Language | English |
| Published |
IOP Publishing
01.10.2011
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| Subjects | |
| Online Access | Get full text |
| ISSN | 1009-0630 |
| DOI | 10.1088/1009-0630/13/5/05 |
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| Abstract | Characteristics of ion temperature measured with charge-exchange recombination spectroscopy （CXRS） were studied in Ohmic, lower-hybrid-wave （LHW） driven and ion-cyclotron- resonance-frequency （ICRF） heated plasmas in HT-7. The results indicate that the central ion temperature T10 follows the one-third power law in the product of central line-averaged density Ne and plasma current Ip in Ohmic discharges and is therefore consistent with the Artsimovich scaling law T10 = K （Ip Bt ne R2）1/3. It is shown that there is an appreciable increase of ion temperature during the operation with both LHW and ICRF and that the increment of ion temperature in those shots is mainly due to the energy transfer via collisions between ions and electrons rather that by direct heating of the ions. |
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| AbstractList | Characteristics of ion temperature measured with charge-exchange recombination spectroscopy （CXRS） were studied in Ohmic, lower-hybrid-wave （LHW） driven and ion-cyclotron- resonance-frequency （ICRF） heated plasmas in HT-7. The results indicate that the central ion temperature T10 follows the one-third power law in the product of central line-averaged density Ne and plasma current Ip in Ohmic discharges and is therefore consistent with the Artsimovich scaling law T10 = K （Ip Bt ne R2）1/3. It is shown that there is an appreciable increase of ion temperature during the operation with both LHW and ICRF and that the increment of ion temperature in those shots is mainly due to the energy transfer via collisions between ions and electrons rather that by direct heating of the ions. |
| Author | 李颖颖 符佳 石跃江 王福地 张伟 提昂 许平 黄懿赟 胡纯栋 DNB team |
| AuthorAffiliation | Institute of Plasma Physics, Chinese Academy of Sciences, Hefei 230031, China |
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| Cites_doi | 10.1088/1009-0630/12/1/03 10.1088/0029-5515/39/8/302 10.1016/j.jnucmat.2006.12.071 10.1103/PhysRevLett.38.1359 10.1088/0256-307X/15/6/017 10.1103/PhysRevA.29.3288 10.1063/1.1787952 10.1063/1.93893 10.1063/1.93931 10.1088/1009-0630/8/1/8 10.1088/0029-5515/12/2/012 10.1088/0741-3335/36/2/001 10.1088/0029-5515/43/10/032 10.1088/0029-5515/43/7/308 10.1063/1.1149461 10.1063/1.1808911 10.1143/JJAP.27.808 |
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| Notes | charge exchange recombination spectroscopy, ion temperature, tokamak Characteristics of ion temperature measured with charge-exchange recombination spectroscopy （CXRS） were studied in Ohmic, lower-hybrid-wave （LHW） driven and ion-cyclotron- resonance-frequency （ICRF） heated plasmas in HT-7. The results indicate that the central ion temperature T10 follows the one-third power law in the product of central line-averaged density Ne and plasma current Ip in Ohmic discharges and is therefore consistent with the Artsimovich scaling law T10 = K （Ip Bt ne R2）1/3. It is shown that there is an appreciable increase of ion temperature during the operation with both LHW and ICRF and that the increment of ion temperature in those shots is mainly due to the energy transfer via collisions between ions and electrons rather that by direct heating of the ions. 34-1187/TL |
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| References | Li J G (19) 1999; 39 14 Artsimovich L A (15) 1972; 12 Shi Y J (12) 2010; 12 Kuang G L (16) 1998; 15 Bosshard P (5) 2001; 25A 1 2 Zhao Y P (18) 2006; 8 3 6 Isler R C (4) 1994; 36 7 Afrosimov V V (8) 1978; 28 9 Ling B L (13) 2005; 21 Wan B N (11) 2003; 43 Ding B J (17) 2003; 43 Luo J R (20) 2000 10 21 |
| References_xml | – volume: 12 start-page: 11 issn: 1009-0630 year: 2010 ident: 12 publication-title: Plasma Sci. Technol. doi: 10.1088/1009-0630/12/1/03 – volume: 39 start-page: 973 issn: 0029-5515 year: 1999 ident: 19 publication-title: Nucl. Fusion doi: 10.1088/0029-5515/39/8/302 – ident: 21 doi: 10.1016/j.jnucmat.2006.12.071 – ident: 7 doi: 10.1103/PhysRevLett.38.1359 – volume: 15 start-page: 435 issn: 0256-307X year: 1998 ident: 16 publication-title: Chin. Phys. Lett. doi: 10.1088/0256-307X/15/6/017 – ident: 9 doi: 10.1103/PhysRevA.29.3288 – volume: 25A start-page: 365 year: 2001 ident: 5 – ident: 2 doi: 10.1063/1.1787952 – ident: 3 doi: 10.1063/1.93893 – ident: 10 doi: 10.1063/1.93931 – volume: 8 start-page: 33 issn: 1009-0630 year: 2006 ident: 18 publication-title: Plasma Sci. Technol. doi: 10.1088/1009-0630/8/1/8 – volume: 28 start-page: 500 year: 1978 ident: 8 publication-title: JETP Lett. – volume: 12 start-page: 215 issn: 0029-5515 year: 1972 ident: 15 publication-title: Nucl. Fusion doi: 10.1088/0029-5515/12/2/012 – volume: 36 start-page: 171 issn: 0741-3335 year: 1994 ident: 4 publication-title: Plasma Phys. Control. Fusion doi: 10.1088/0741-3335/36/2/001 – volume: 21 start-page: 66 year: 2005 ident: 13 publication-title: J. Microwaves – volume: 43 start-page: 1279 issn: 0029-5515 year: 2003 ident: 11 publication-title: Nucl. Fusion doi: 10.1088/0029-5515/43/10/032 – volume: 43 start-page: 558 issn: 0029-5515 year: 2003 ident: 17 publication-title: Nucl. Fusion doi: 10.1088/0029-5515/43/7/308 – ident: 6 doi: 10.1063/1.1149461 – ident: 14 doi: 10.1063/1.1808911 – ident: 1 doi: 10.1143/JJAP.27.808 – start-page: 01 year: 2000 ident: 20 |
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| SubjectTerms | ICRF 回旋共振频率 托卡马克 温度特性 热等离子体 碰撞能量转移 离子温度 等离子体电流 |
| Title | Investigation of Ion Temperature Characteristics in the HT-7 Tokamak |
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