Modeling of diffusion and absorption processes of tritium in beryllium membranes
Autor: | V. V. Kirsanov, V. V. Grigor’eva |
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Rok vydání: | 1999 |
Předmět: | |
Zdroj: | Technical Physics. 44:771-774 |
ISSN: | 1090-6525 1063-7842 |
Popis: | The permeation of tritium produced in thermonuclear fusion through metallic membranes, which is a topical problem in radiation physics, is addressed. A physical model for the permeation of hydrogen through a beryllium membrane is proposed which takes into account the oxide layer on the surface of the membrane. The model is implemented in the form of a system of differential equations, which is solved by numerical methods. As a result of the computer modeling it is shown that as the temperature is raised, the oxide layer in a certain interval blocks the permeation of tritium in the membrane, and it is found that the tritium is distributed in a rather limited region of the membrane over its thickness. This circumstance will permit the use of special processing by etching or mechanical treatment. |
Databáze: | OpenAIRE |
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