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Control of Runaway elecrons created during major disruptions

Conference:

Abstract

All large Tokamaks ( I{sub p} > 1 MA and B{sub t} > 3 T) have reported observations of high levels of runaway electrons during major disruptions. Typical values are: Electron energy: 30 to 60 MeV; Equivalent current: up to 2 MA; Total energy: over 1 MJ. Extrapolation to future Tokamaks is difficult, but as all these values tend to increase strongly with the plasma current, Runaway electron suppression will probably present a real challenge for the next step devices. These electrons strike the first wall components on small areas, thus producing very high thermal loads: values up to 10 kJ/cm{sup 2} have been already observed on TORE-SUPRA and JET. The possibility to avoid (or limit) the consequences of this phenomenon is investigated.
Authors:
Publication Date:
Dec 31, 1991
Product Type:
Conference
Report Number:
CEA-CONF-10736; CONF-9109252-
Reference Number:
SCA: 700350; PA: FRD-92:000734; SN: 92000658025
Resource Relation:
Conference: IAEA technical committee meeting on the avoidance and control of tokamak disruptions,Abindgon (United Kingdom),10-12 Sep 1991; Other Information: PBD: 1991
Subject:
70 PLASMA PHYSICS AND FUSION TECHNOLOGY; PLASMA DISRUPTION; RUNAWAY ELECTRONS; TOKAMAK DEVICES; ELECTRON DENSITY; 700350; PLASMA PRODUCTION, HEATING, CURRENT DRIVE, AND INTERACTIONS
OSTI ID:
10116315
Research Organizations:
Association Euratom-CEA, Centre d`Etudes Nucleaires de Cadarache, 13 - Saint-Paul-lez-Durance (France). Dept. de Recherches sur la Fusion Controlee
Country of Origin:
France
Language:
English
Other Identifying Numbers:
Other: ON: DE92767121; TRN: FR9200734
Availability:
OSTI; NTIS (US Sales Only)
Submitting Site:
FRN
Size:
4 p.
Announcement Date:
Jun 30, 2005

Conference:

Citation Formats

Martin, G. Control of Runaway elecrons created during major disruptions. France: N. p., 1991. Web.
Martin, G. Control of Runaway elecrons created during major disruptions. France.
Martin, G. 1991. "Control of Runaway elecrons created during major disruptions." France.
@misc{etde_10116315,
title = {Control of Runaway elecrons created during major disruptions}
author = {Martin, G}
abstractNote = {All large Tokamaks ( I{sub p} > 1 MA and B{sub t} > 3 T) have reported observations of high levels of runaway electrons during major disruptions. Typical values are: Electron energy: 30 to 60 MeV; Equivalent current: up to 2 MA; Total energy: over 1 MJ. Extrapolation to future Tokamaks is difficult, but as all these values tend to increase strongly with the plasma current, Runaway electron suppression will probably present a real challenge for the next step devices. These electrons strike the first wall components on small areas, thus producing very high thermal loads: values up to 10 kJ/cm{sup 2} have been already observed on TORE-SUPRA and JET. The possibility to avoid (or limit) the consequences of this phenomenon is investigated.}
place = {France}
year = {1991}
month = {Dec}
}