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DIFFER Publication

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

Author
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.

Year of Publication
2010
Journal
Physical Review Letters
Volume
105
Number
17
Number of Pages
4
Date Published
Oct
Type of Article
Article
ISBN Number
0031-9007
Accession Number
ISI:000283356800006
URL
<Go to ISI>://000283356800006
PId
18e030cdd07f3c9078d79a22538b069f
Alternate Journal
Phys. Rev. Lett.
Journal Article
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