| Autor: |
J.A. Shanahan, T.J. Finlay, J.W. Davis, A.A. Haasz |
| Jazyk: |
angličtina |
| Rok vydání: |
2019 |
| Předmět: |
|
| Zdroj: |
Nuclear Materials and Energy, Vol 18, Iss , Pp 212-215 (2019) |
| Druh dokumentu: |
article |
| ISSN: |
2352-1791 |
| DOI: |
10.1016/j.nme.2018.12.028 |
| Popis: |
Argon is one of the candidates for impurity seeding in the ITER divertor; however, few studies exist on either Ar retention in W, or its effect on D retention in W. The current study investigates the effects of simultaneous (SIM) and sequential (SEQ) irradiation of D-2.5% Ar on polycrystalline tungsten at 300–700 K, with ion energies of 500 eV/D+ and 1.5 keV/Ar+, and compares the findings with a similar previous study on D+/Ne+ irradiation; Ne being another impurity seeding candidate. Trapped D and Ar in irradiated specimens is measured using thermal desorption spectroscopy (TDS). Ar is found to be similar to Ne in its effectiveness in reducing D retention in W, both performing somewhat better than He at reducing D retention at higher W temperatures. |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
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