TJ-II:Electron Cyclotron Emission: Difference between revisions
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Electron cyclotron emission measurements are routinely performed in TJ-II stellarator by means of a multichannel heterodyne radiometer. The radiometer is absolutely calibrated and measures the temperature profile with high temporal resolution. | Electron cyclotron emission measurements are routinely performed in TJ-II stellarator by means of a multichannel heterodyne radiometer. The radiometer is absolutely calibrated and measures the temperature profile with high temporal resolution. | ||
The diagnostic provides 12 measurement channels, corresponding to 12 values of the major radius ''R''. | The diagnostic provides 12 measurement channels, corresponding to 12 values of the major radius ''R''. | ||
<ref>[http://link.aip.org/link/?RSINAK/72/379/1 E. de la Luna, J. Sánchez, V. Tribaldos, and T. Estrada, Rev. Sci. Instrum. '''72''', 379 (2001)]</ref> | <ref>[http://link.aip.org/link/?RSINAK/72/379/1 E. de la Luna, J. Sánchez, V. Tribaldos, and T. Estrada, ''Multichannel electron cyclotron emission radiometry in TJ-II stellarator'', Rev. Sci. Instrum. '''72''', 379 (2001)]</ref> | ||
<ref>[http://dx.doi.org/10.1016/S0920-3796(00)00492-0 E. de la Luna et al, Fusion Engineering and Design '''53''', Issues 1-4 (2001) 147-151]</ref> | <ref>[http://dx.doi.org/10.1016/S0920-3796(00)00492-0 E. de la Luna et al, ''Electron cyclotron emission measurements on TJ-II stellarator plasmas'', Fusion Engineering and Design '''53''', Issues 1-4 (2001) 147-151]</ref> | ||
<ref>[http://dx.doi.org/10.1088/0029-5515/36/3/I02 V. Tribaldos and B. P. van Milligen, Nucl. Fusion '''36''', 283 (1996)]</ref> | <ref>[http://dx.doi.org/10.1088/0029-5515/36/3/I02 V. Tribaldos and B. P. van Milligen, ''Electron cyclotron emission calculations for TJ-II stellarator'', Nucl. Fusion '''36''', 283 (1996)]</ref> | ||
The sampling rate is 100 kHz. | The sampling rate is 100 kHz. | ||
The signals are called 'ECE1' ... 'ECE12' in the [[TJ-II:Shot_database|TJ-II database]]. | The signals are called 'ECE1' ... 'ECE12' in the [[TJ-II:Shot_database|TJ-II database]]. | ||
Revision as of 09:24, 24 September 2009
Electron cyclotron emission measurements are routinely performed in TJ-II stellarator by means of a multichannel heterodyne radiometer. The radiometer is absolutely calibrated and measures the temperature profile with high temporal resolution. The diagnostic provides 12 measurement channels, corresponding to 12 values of the major radius R. [1] [2] [3] The sampling rate is 100 kHz. The signals are called 'ECE1' ... 'ECE12' in the TJ-II database. The measured ECE amplitude is proportional to the electron temperature, provided certain conditions are met.
References
- ↑ E. de la Luna, J. Sánchez, V. Tribaldos, and T. Estrada, Multichannel electron cyclotron emission radiometry in TJ-II stellarator, Rev. Sci. Instrum. 72, 379 (2001)
- ↑ E. de la Luna et al, Electron cyclotron emission measurements on TJ-II stellarator plasmas, Fusion Engineering and Design 53, Issues 1-4 (2001) 147-151
- ↑ V. Tribaldos and B. P. van Milligen, Electron cyclotron emission calculations for TJ-II stellarator, Nucl. Fusion 36, 283 (1996)