Suppression of Tritium Retention in Remote Areas of ITER by Nonperturbative Reactive Gas Injection

TitleSuppression of Tritium Retention in Remote Areas of ITER by Nonperturbative Reactive Gas Injection
Publication TypeJournal Article
Year of Publication2010
AuthorsF.L Tabares, J.A Ferreira, A. Ramos, G.J van Rooij, J. Westerhout, R. Al, J. Rapp, A. Drenik, M. Mozetic
JournalPhysical Review Letters
Volume105
Number17
Pagination4
Date PublishedOct
Type of ArticleArticle
ISBN Number0031-9007
Accession NumberISI:000283356800006
KeywordsDEPOSITION, DEVICES, INVENTORY CONTROL, JET, NITROGEN INJECTION, REACTORS, REMOVAL, TOKAMAKS
Abstract

A technique based on reactive gas injection in the afterglow region of the divertor plasma is proposed for the suppression of tritium-carbon codeposits in remote areas of ITER when operated with carbon-based divertor targets. Experiments in a divertor simulator plasma device indicate that a 4 nm/min deposition can be suppressed by addition of 1 Pa.m(3) s(-1) ammonia flow at 10 cm from the plasma. These results bolster the concept of nonperturbative scavenger injection for tritium inventory control in carbon-based fusion plasma devices, thus paving the way for ITER operation in the active phase under a carbon-dominated, plasma facing component background.

URL<Go to ISI>://000283356800006
Division

PSI

PID

18e030cdd07f3c9078d79a22538b069f

Alternate TitlePhys. Rev. Lett.

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