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Title: Tritium retention and permeation through aluminum APT tubes

Abstract

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.

Authors:
;
Publication Date:
Research Org.:
Sandia National Labs., Livermore, CA (US)
OSTI Identifier:
20020755
Resource Type:
Journal Article
Journal Name:
Materials Characterization
Additional Journal Information:
Journal Volume: 43; Journal Issue: 2-3; Other Information: PBD: Aug-Sep 1999; Journal ID: ISSN 1044-5803
Country of Publication:
United States
Language:
English
Subject:
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

Citation Formats

Cowgill, D.F., and Causey, R.A. Tritium retention and permeation through aluminum APT tubes. United States: N. p., 1999. Web. doi:10.1016/S1044-5803(99)00031-5.
Cowgill, D.F., & Causey, R.A. Tritium retention and permeation through aluminum APT tubes. United States. doi:10.1016/S1044-5803(99)00031-5.
Cowgill, D.F., and Causey, R.A. Wed . "Tritium retention and permeation through aluminum APT tubes". United States. doi:10.1016/S1044-5803(99)00031-5.
@article{osti_20020755,
title = {Tritium retention and permeation through aluminum APT tubes},
author = {Cowgill, D.F. and Causey, R.A.},
abstractNote = {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.},
doi = {10.1016/S1044-5803(99)00031-5},
journal = {Materials Characterization},
issn = {1044-5803},
number = 2-3,
volume = 43,
place = {United States},
year = {1999},
month = {9}
}