TITLE

Comparative electron temperature measurements of Thomson scattering and electron cyclotron emission diagnostics in TCABR plasmas

AUTHOR(S)
Alonso, M. P.; Figueiredo, A. C. A.; Borges, F. O.; Elizondo, J. I.; Galvão, R. M. O.; Severo, J. H. F.; Usuriaga, O. C.; Berni, L. A.; Machida, M.
PUB. DATE
October 2010
SOURCE
Review of Scientific Instruments;Oct2010, Vol. 81 Issue 10, p10D529
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
We present the first simultaneous measurements of the Thomson scattering and electron cyclotron emission radiometer diagnostics performed at TCABR tokamak with Alfvén wave heating. The Thomson scattering diagnostic is an upgraded version of the one previously installed at the ISTTOK tokamak, while the electron cyclotron emission radiometer employs a heterodyne sweeping radiometer. For purely Ohmic discharges, the electron temperature measurements from both diagnostics are in good agreement. Additional Alfvén wave heating does not affect the capability of the Thomson scattering diagnostic to measure the instantaneous electron temperature, whereas measurements from the electron cyclotron emission radiometer become underestimates of the actual temperature values.
ACCESSION #
54858029

 

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