Studies on LH-generated Fast Electron Tail Using the Oblique ECE Diagnostic at JET

Journal Article · Thu Nov 26 00:00:00 EST 2009 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.3273773· OSTI ID:21335750

Sozzi, C; Grossetti, G; Farina, D; Figini, L; Garavaglia, S; Nowak, S ^[1]; Baranov, Y; Kirov, K ^[2]; Luna, E de la ^[3]

---

1. IFP-CNR, Associazione EURATOM-ENEA-CNR sulla Fusione, Via R.Cozzi 53, 20125 Milano (Italy)
2. EURATOM-UKAEA Fusion Association, Culham Science Centre, OX14 3DB, Abingdon, Oxon (United Kingdom)
3. Laboratorio National de Fusion, Asociacion Euratom-CIEMAT para Fusion, CIEMAT, Av. Complutense 22, 28040 Madrid (Spain)

The new Oblique ECE diagnostics of JET allows simultaneous measurement along three lines of sight at different toroidal angles. JET pulses, in which modulated LHCD power was applied, were analyzed by means of the SPECE emission code, which takes into account the fast electron tail generated by LH. The code results were compared to the ECE spectra from the oblique ECE diagnostic. The match between the computed and the experimental data from the three lines of sight provides an estimate of the density of superthermal electrons and of their maximum energy from which the fraction of the plasma current driven by LHCD is derived.

• OSTI ID: 21335750
• Journal Information: AIP Conference Proceedings, Vol. 1187, Issue 1; Conference: 18. topical conference on radio frequency power in plasmas, Gent (Belgium), 24-26 Jun 2009; Other Information: DOI: 10.1063/1.3273773; (c) 2009 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
COMPUTERIZED SIMULATION
ELECTRIC CURRENTS
ELECTRON CYCLOTRON-RESONANCE
ELECTRONS
EMISSION SPECTRA
LOWER HYBRID CURRENT DRIVE
PLASMA DENSITY
PLASMA DIAGNOSTICS
PLASMA SIMULATION
PLASMA WAVES
PULSES
S CODES