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Neutron measurements and radiation damage calculations for fusion materials studies [electronic resource].

Published
Argonne, Ill. : Argonne National Laboratory, 1983.
Oak Ridge, Tenn. : Distributed by the Office of Scientific and Technical Information, U.S. Dept. of Energy.
Physical Description
Pages: 5 : digital, PDF file
Additional Creators
Argonne National Laboratory and United States. Department of Energy. Office of Scientific and Technical Information
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Summary
Fusion reactors will generate intense neutron fields, especially at the inner surfaces of containment vessels. With a typical wall loading of 1 MW/m/sup 2/, the yearly neutron fluence will be about 10/sup 26/ n/m/sup 2/. In a material like stainless steel this irradiation will produce about 10 atomic displacements-per-atom (DPA), 100 appM helium, 500 appM hydrogen, and various other transmutations. The gas-to-DPA ratios are very high compared to fission reactors due to the 14 MeV neutrons from the d-t fusion reaction. No existing neutron source can produce both the high fluence and high gas rates needed to simulate fusion damage. Consequently, fusion material studies are underway in a variety of facilities including fission reactors and accelerator-based neutron sources. A Subtask Group has been created by DOE to characterize these diverse facilities in terms of neutron flux and energy spectrum and to calculate DPA and transmutation for specific irradiations. Material property changes can then be correlated between facilities and extrapolated to fusion reactor conditions.
Report Numbers
E 1.99:conf-831047-55
conf-831047-55
Subject(s)
Other Subject(s)
Note
Published through SciTech Connect.
01/01/1983.
"conf-831047-55"
"DE83014790"
American Nuclear Society winter meeting, San Francisco, CA, USA, 30 Oct 1983.
Greenwood, L.R.
Funding Information
W-31-109-ENG-38
View MARC record | catkey: 14753571