Deuterium retention in single-crystal tungsten irradiated with 10–500 eV/D

Deuterium retention in single-crystal tungsten irradiated with 10–500 eV/D

Deuterium retention in single-crystal tungsten was measured by thermal desorption spectroscopy as a function of D+ energy, fluence and specimen temperature. At 300K, D retention increased significantly with increasing ion energy but at 500K the energy dependence was weak. For both 300 and 500K impla...

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Veröffentlicht in:Journal of nuclear materials 2013-07, Vol.438, p.S1084-S1087
Hauptverfasser: Roszell, J.P., Davis, J.W., Alimov, V.Kh, Sugiyama, K., Haasz, A.A.
Format: Artikel
Sprache:eng
Schlagworte:
Deuterium
Energy (nuclear)
Fluence
Implantation
Single crystals
Thermal desorption spectroscopy
Trapping
Tungsten
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Zusammenfassung:Deuterium retention in single-crystal tungsten was measured by thermal desorption spectroscopy as a function of D+ energy, fluence and specimen temperature. At 300K, D retention increased significantly with increasing ion energy but at 500K the energy dependence was weak. For both 300 and 500K implantations, the retention was significantly lower for 10eV/D+ than for 500eV/D+ over the fluence range ∼1022–1024D/m2. Depth profiles in D-implanted SCW show D retention at 300K extending beyond 7μm while at 500K retention concentration is detectable at the surface
ISSN:0022-3115
1873-4820
DOI:10.1016/j.jnucmat.2013.01.238