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Measure of electron cyclotron emission at multiple angles in high Te plasmas of JET (Articolo in rivista)

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Measure of electron cyclotron emission at multiple angles in high Te plasmas of JET (Articolo in rivista) (literal)

Anno

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Alternative label

Figini, L.[ 1 ] ; Garavaglia, S.[ 1 ] ; De La Luna, E.[ 2,3 ] ; Farina, D.[ 1 ] ; Platania, P.[ 1 ] ; Simonetto, A.[ 1 ] ; Sozzi, C.[ 1 ]; and JET EFDA contributors (2010)
Measure of electron cyclotron emission at multiple angles in high Te plasmas of JET
in Review of scientific instruments; American Institute Of Physics (AIP), Melville (Stati Uniti d'America)
(literal)

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Figini, L.[ 1 ] ; Garavaglia, S.[ 1 ] ; De La Luna, E.[ 2,3 ] ; Farina, D.[ 1 ] ; Platania, P.[ 1 ] ; Simonetto, A.[ 1 ] ; Sozzi, C.[ 1 ]; and JET EFDA contributors (literal)

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Note

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[ 1 ] Euratom ENEA CNR Assoc, Istituto di Fisica del Plasma CNR, I-20125 Milan, Italy [ 2 ] CIEMAT, Asociac Euratom CIEMAT, E-28040 Madrid, Spain [ 3 ] Culham Sci Ctr, EFDA CSU, Abingdon OX14 3DB, Oxon, England [ 4 ] Culham Sci Ctr, JET EFDA, Abingdon OX14 3DB, Oxon, England (literal)

Titolo

Measure of electron cyclotron emission at multiple angles in high Te plasmas of JET (literal)

Abstract

The oblique electron cyclotron emission (ECE) diagnostic installed at JET allows simultaneous analysis of the ECE spectra along three lines of sight (with toroidal angles of 0°, ~ 10°, and ~ 20°) and two linear polarizations for each oblique line of sight. The diagnostic is capable of measuring EC emission over the band of 75-800 GHz with 5 ms time resolution and 7.5 GHz spectral resolution, and it is designed to investigate the features of ECE spectra related to electron distribution in the thermal velocity range. Instrumental accuracy was assessed using sources at different temperatures (77-900 K) and with plasma emission. ECE from high temperature plasmas and in the presence of fast ions has been compared to simulations performed with the modeling code SPECE, setting an upper limit to possible discrepancies from thermal emission. (literal)

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