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Summary of Sandia research on metal tritides : FY 2007.

Description: Sandia National Laboratories has cradle to grave responsibility for all neutron generators in the US nuclear weapons stockpile. As such, much research effort is exerted to develop a comprehensive understanding of all the major components of a neutron generator. One of the key components is the tritium containing target. The target is a thin metal tritide film. Sandia's research into metal tritides began in the early 1960's with a collaboration with the Denver Research Institute (DRI) and contin… more
Date: May 1, 2008
Creator: Browning, James Frederick (Oak Ridge National Laboratory, Oak Ridge, TN); Kammler, Daniel R.; Snow, Clark Sheldon; Ferrizz, Robert Matthew; Rodriguez, Mark Andrew; Wixom, Ryan R. et al.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Using a dynamic point-source percolation model to simulate bubble growth.

Description: Accurate modeling of nucleation, growth and clustering of helium bubbles within metal tritide alloys is of high scientific and technological importance. Of interest is the ability to predict both the distribution of these bubbles and the manner in which these bubbles interact at a critical concentration of helium-to-metal atoms to produce an accelerated release of helium gas. One technique that has been used in the past to model these materials, and again revisited in this research, is percolat… more
Date: May 1, 2004
Creator: Zimmerman, Jonathan A.; Zeigler, David A. & Cowgill, Donald F.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Helium nano-bubble evolution in aging metal tritides.

Description: A continuum-scale, evolutionary model of helium (He) nano-bubble nucleation, growth and He release for aging bulk metal tritides is presented which accounts for major features of the experimental database. Bubble nucleation, modeled as self-trapping of interstitially diffusing He atoms, is found to occur during the first few days following tritium introduction into the metal and is sensitive to the He diffusivity and pairing energy. An effective helium diffusivity of 0.3 x 10{sup -16} cm{sup 2}… more
Date: May 1, 2004
Creator: Cowgill, Donald F.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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