U.S. Department of EnergyOffice of Scientific and Technical Information
Analysis of gamma ray displacement damage in Light Water Reactor pressure vessels
Abstract
In addition to fast neutrons, the copious energetic gamma rays, present in a reactor environment, induce displacement damage in the reactor pressure vessel. The contribution of gamma ray damage to embrittlement is most pronounced in reactors with large water gaps separating the core from the reactor pressure vessel. Water moderates the energies of fast neutrons much more effectively than it attenuates the high energy gamma flux, and thus enhances the high energy gamma flux, incident on the vessel relative to the fast neutron flux. In this paper, an analysis of computer transport calculations is presented which quantifies the relative contribution of gamma ray damage in various pressure vessels. The results indicate that gamma ray damage must be included for accurate predictions of radiation-induced embrittlement.
- Authors:
- Publication Date:
- Research Org.:
- Argonne National Lab. (ANL), Argonne, IL (United States)
- Sponsoring Org.:
- USDOE, Washington, DC (United States)
- OSTI Identifier:
- 93631
- Report Number(s):
- ANL/MSD/CP-86640; CONF-950816-3
ON: DE95014100
- DOE Contract Number:
- W-31-109-ENG-38
- Resource Type:
- Conference
- Resource Relation:
- Conference: 7. international symposium on environmental degradation of materials in nuclear power plants: water reactors, Breckenridge, CO (United States), 6-10 Aug 1995; Other Information: PBD: May 1995
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 21 NUCLEAR POWER REACTORS AND ASSOCIATED PLANTS; 36 MATERIALS SCIENCE; PRESSURE VESSELS; EMBRITTLEMENT; PHYSICAL RADIATION EFFECTS; REACTOR MATERIALS; GAMMA RADIATION; PHOTON TRANSPORT; DAMAGE; GAMMA TRANSPORT THEORY
Citation Formats
Alexander, D E, and Rehn, L E. Analysis of gamma ray displacement damage in Light Water Reactor pressure vessels. United States: N. p., 1995.
Web.
Alexander, D E, & Rehn, L E. Analysis of gamma ray displacement damage in Light Water Reactor pressure vessels. United States.
Alexander, D E, and Rehn, L E. 1995.
"Analysis of gamma ray displacement damage in Light Water Reactor pressure vessels". United States. https://www.osti.gov/servlets/purl/93631.
@article{osti_93631,
title = {Analysis of gamma ray displacement damage in Light Water Reactor pressure vessels},
author = {Alexander, D E and Rehn, L E},
abstractNote = {In addition to fast neutrons, the copious energetic gamma rays, present in a reactor environment, induce displacement damage in the reactor pressure vessel. The contribution of gamma ray damage to embrittlement is most pronounced in reactors with large water gaps separating the core from the reactor pressure vessel. Water moderates the energies of fast neutrons much more effectively than it attenuates the high energy gamma flux, and thus enhances the high energy gamma flux, incident on the vessel relative to the fast neutron flux. In this paper, an analysis of computer transport calculations is presented which quantifies the relative contribution of gamma ray damage in various pressure vessels. The results indicate that gamma ray damage must be included for accurate predictions of radiation-induced embrittlement.},
doi = {},
url = {https://www.osti.gov/biblio/93631},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Mon May 01 00:00:00 EDT 1995},
month = {Mon May 01 00:00:00 EDT 1995}
}