A Michelson Interferometer for Electron Cyclotron Emission Measurements on EAST
A Michelson interferometer, on loan from EFDA-JET(Culham, United Kingdom)has recently been commissioned on the experimental advanced superconducting tokamak(EAST,ASIPP, Hefei, China). Following a successful in-situ absolute calibration the instrument is able to measure the electron cyclotron emissio...
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| Veröffentlicht in: | 等离子体科学与技术：英文版 2016 (12), p.1148-1154 |
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| container_title | 等离子体科学与技术：英文版 |
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| creator | 刘永 Stefan SCHMUCK 赵海林 John FESSEY Paul TRIMBLE 刘祥 朱则英 臧庆 胡立群 |
| description | A Michelson interferometer, on loan from EFDA-JET(Culham, United Kingdom)has recently been commissioned on the experimental advanced superconducting tokamak(EAST,ASIPP, Hefei, China). Following a successful in-situ absolute calibration the instrument is able to measure the electron cyclotron emission(ECE) spectrum, from 80 GHz to 350 GHz in extraordinary mode(X-mode) polarization, with high accuracy. This allows the independent determination of the electron temperature profile from observation of the second harmonic ECE and the possible identification of non-Maxwellian features by comparing higher harmonic emission with numerical simulations. The in-situ calibration results are presented together with the initial measured temperature profiles. These measurements are then discussed and compared with other independent temperature profile measurements. This paper also describes the main hardware features of the diagnostic and the associated commissioning test results. |
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Following a successful in-situ absolute calibration the instrument is able to measure the electron cyclotron emission(ECE) spectrum, from 80 GHz to 350 GHz in extraordinary mode(X-mode) polarization, with high accuracy. This allows the independent determination of the electron temperature profile from observation of the second harmonic ECE and the possible identification of non-Maxwellian features by comparing higher harmonic emission with numerical simulations. The in-situ calibration results are presented together with the initial measured temperature profiles. These measurements are then discussed and compared with other independent temperature profile measurements. 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Following a successful in-situ absolute calibration the instrument is able to measure the electron cyclotron emission(ECE) spectrum, from 80 GHz to 350 GHz in extraordinary mode(X-mode) polarization, with high accuracy. This allows the independent determination of the electron temperature profile from observation of the second harmonic ECE and the possible identification of non-Maxwellian features by comparing higher harmonic emission with numerical simulations. The in-situ calibration results are presented together with the initial measured temperature profiles. These measurements are then discussed and compared with other independent temperature profile measurements. This paper also describes the main hardware features of the diagnostic and the associated commissioning test results.</abstract></addata></record> |
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| ispartof | 等离子体科学与技术：英文版, 2016 (12), p.1148-1154 |
| issn | 1009-0630 |
| language | eng |
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| source | IOP Publishing Journals |
| title | A Michelson Interferometer for Electron Cyclotron Emission Measurements on EAST |
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