Helium concentration measurement in tungsten fuzz-like nanostructures by means of thermal desorption spectroscopy

TitleHelium concentration measurement in tungsten fuzz-like nanostructures by means of thermal desorption spectroscopy
Publication TypeJournal Article
Year of Publication2016
AuthorsY. Gasparyan, V. Efimov, K. Bystrov
JournalNuclear Fusion
Volume56
Issue5
Pagination054002
Abstract

The concentration of helium in tungsten fuzz-like nanostructures has been measured by means of thermal desorption spectroscopy. Fuzz was formed on the W surface under intensive plasma irradiation at 1500 K. The helium content was measured first in the as-irradiated sample, and then in a similar sample with the fuzz mechanically scraped from the sample surface. The difference gave the He content in the fuzz, which was estimated to be He/ W  =  (13  ±  4)%.

DOI10.1088/0029-5515/56/5/054002
Division

PSI

Department

PSI-E

PID

93762f4f887a431e9d5e28cbd9a4d8b3

Alternate TitleNucl. Fusion

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