Tritium retention and permeation through aluminum APT tubes

Journal Article · Wed Sep 01 00:00:00 EDT 1999 · Materials Characterization

DOI:https://doi.org/10.1016/S1044-5803(99)00031-5· OSTI ID:20020755

Cowgill, D F; Causey, R A

Tritium retention in the walls of the He-3 tubes caused by energetic {sup 3}He(n,p){sup 3}H triton flux is examined by accelerator-based implantation experiments. Retention, measured by post-implantation thermodesorption, is separated into a mobile, permeating and a trapped, near-surface concentration. The mobile fraction is observed to saturate at about 10 appm, while the trapped fraction increases linearly with fluence with a retention fraction of 30% until surface blistering occurs. The consequences of this tritium permeation and inventory to APT and potential methods to reduce these quantities are discussed.

• Research Organization: Sandia National Labs., Livermore, CA (US)
• OSTI ID: 20020755
• Journal Information: Materials Characterization, Vol. 43, Issue 2-3; Other Information: PBD: Aug-Sep 1999; ISSN 1044-5803
• Country of Publication: United States
• Language: English

Related Subjects

43 PARTICLE ACCELERATORS
36 MATERIALS SCIENCE
45 MILITARY TECHNOLOGY, WEAPONRY, AND NATIONAL DEFENSE
LINEAR ACCELERATORS
TRITIUM
ISOTOPE PRODUCTION
DIFFUSION
PERMEABILITY
SORPTIVE PROPERTIES
ALUMINIUM ALLOYS
ION IMPLANTATION