Evidence for high-velocity solid dust generation induced by runaway electron impact in FTU

Autor:	M. De Angeli, P. Tolias, S. Ratynskaia, D. Ripamonti, L. Vignitchouk, F. Causa, G. Daminelli, B. Esposito, E. Fortuna-Zalesna, F. Ghezzi, L. Laguardia, G. Maddaluno, G. Riva, W. Zielinski
Jazyk:	angličtina
Rok vydání:	2022
Předmět:	runaway electron damage dust generation dust impact crater formation hypervelocity regime Nuclear and particle physics. Atomic energy. Radioactivity QC770-798
Zdroj:	Nuclear Fusion, Vol 63, Iss 1, p 014001 (2022)
Druh dokumentu:	article
ISSN:	1741-4326 0029-5515
DOI:	10.1088/1741-4326/ac8a04
Popis:	Post-mortem and in situ evidence is presented in favor of the generation of high-velocity solid dust during the explosion-like interaction of runaway electrons with metallic plasma-facing components in FTU. The freshly-produced solid dust is the source of secondary de-localized wall damage through high-velocity impacts that lead to the formation of craters, which have been reproduced in dedicated light gas gun impact tests. This novel mechanism, of potential importance for ITER and DEMO, is further supported by surface analysis, multiple theoretical arguments and dust dynamics modeling.
Databáze:	Directory of Open Access Journals
Externí odkaz:	https://doaj.org/article/a66649b52a824a9db03f725e613f7f22 Zobrazit plný text záznamu View record in DOAJ