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Lower hybrid heating and current drive in ignitor shear reversal scenarios

Abstract

Injection of Lower Hybrid (LH) Wave power at 8 GHz is considered into IGNITOR shear reversal scenarios, characterized by a reduced plasma current and density. Power deposition calculation are performed to establish whether LH waves can be used both as central heating and off axis current drive tool. It turns out that LH waves can be used (a) for central plasma heating purpose during the current vamp phase, to freeze the shear reversed configuration, at the power level of {approx}10 MW. (b) to drive a current in the outer part of the plasma at the power level of 20 MW. In this way around 1/3-1/6 of the total current in the proper plasma position (i.e. where q is minimum) is driven.
Authors:
Barbato, E; Pinaccione, L [1] 
  1. Italian Agengy for New Technologies, Energy and the Environment, Centro Ricerche Frascati, Rome (Italy). Dip. Energia
Publication Date:
May 01, 1996
Product Type:
Technical Report
Report Number:
ENEA-RT-ERG-FUS-96-22; RT/ERG-FUS-96-22
Reference Number:
SCA: 700350; PA: ITA-97:000691; EDB-97:123445; NTS-98:006566; SN: 97001813351
Resource Relation:
Other Information: PBD: May 1996
Subject:
70 PLASMA PHYSICS AND FUSION; TOKAMAK DEVICES; LOWER HYBRID CURRENT DRIVE; CLOSED PLASMA DEVICES; MAGNETIC FIELD REVERSAL; IGNITION SPHERICAL TORUS; PLASMA WAVES; SHEAR; LOWER HYBRID HEATING
OSTI ID:
516971
Research Organizations:
Associazione EURATOM-ENEA sulla Fusione, Frascati (Italy)
Country of Origin:
Italy
Language:
English
Other Identifying Numbers:
Journal ID: ISSN 1120-5563; Other: ON: DE97002005; TRN: IT9700691
Availability:
OSTI as DE97002005
Submitting Site:
ITA
Size:
26 p.
Announcement Date:
Sep 18, 1997

Citation Formats

Barbato, E, and Pinaccione, L. Lower hybrid heating and current drive in ignitor shear reversal scenarios. Italy: N. p., 1996. Web.
Barbato, E, & Pinaccione, L. Lower hybrid heating and current drive in ignitor shear reversal scenarios. Italy.
Barbato, E, and Pinaccione, L. 1996. "Lower hybrid heating and current drive in ignitor shear reversal scenarios." Italy.
@misc{etde_516971,
title = {Lower hybrid heating and current drive in ignitor shear reversal scenarios}
author = {Barbato, E, and Pinaccione, L}
abstractNote = {Injection of Lower Hybrid (LH) Wave power at 8 GHz is considered into IGNITOR shear reversal scenarios, characterized by a reduced plasma current and density. Power deposition calculation are performed to establish whether LH waves can be used both as central heating and off axis current drive tool. It turns out that LH waves can be used (a) for central plasma heating purpose during the current vamp phase, to freeze the shear reversed configuration, at the power level of {approx}10 MW. (b) to drive a current in the outer part of the plasma at the power level of 20 MW. In this way around 1/3-1/6 of the total current in the proper plasma position (i.e. where q is minimum) is driven.}
place = {Italy}
year = {1996}
month = {May}
}