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Title: Latest calculations of radiation damage at SNS

Abstract

The Spallation Neutron Source (SNS) is a proposed neutron scattering facility centered at the Oak Ridge National Laboratory. It is designed to use a 1-MW proton beam to provide a 0.5-{micro}s neutron pulse at a 60-Hz frequency. The target material is mercury. The containment vessel for the flowing mercury is constructed of Type 316SS. One of the concerns for the containment vessel is radiation damage due to the incident 1000-MeV protons and secondary particles (both neutrons and protons). The calculations of radiation damage will be critical in determining the predicted lifetime of the target. The three areas of radiation damage investigated are displacements per atom (dpa), helium production, and hydrogen production. The cross sections for the production of atomic displacements per atom (dpa), helium production, and hydrogen production. The cross sections for the production of atomic displacements, helium, and hydrogen have been calculated via computer codes. Low- (E < 20 MeV) and high- (E > 20 MeV) energy cross sections were calculated using SPECTER and the LAHET code system (LCS), respectively. SPECTER bases its cross-section calculations on NDF/B cross-section libraries. The LCS is a Monte Carlo code for the transport and interactions of nucleons, pions, and muons.

Authors:
; ;  [1]; ;  [2]
  1. North Carolina State Univ., Raleigh, NC (United States)
  2. Oak Ridge National Lab., TN (United States)
Publication Date:
OSTI Identifier:
678118
Report Number(s):
CONF-990605-
Journal ID: TANSAO; ISSN 0003-018X; TRN: 99:009103
Resource Type:
Journal Article
Journal Name:
Transactions of the American Nuclear Society
Additional Journal Information:
Journal Volume: 80; Conference: 1999 annual meeting of the American Nuclear Society (ANS), Boston, MA (United States), 6-10 Jun 1999; Other Information: PBD: 1999
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; 43 PARTICLE ACCELERATORS; 07 ISOTOPE AND RADIATION SOURCE TECHNOLOGY; NEUTRON SOURCES; TARGET CHAMBERS; STAINLESS STEEL-316; PHYSICAL RADIATION EFFECTS; THEORETICAL DATA

Citation Formats

Barnett, M.H., Wechsler, M.S., Dudziak, D.J., Charlton, L.A., and Mansur, L.K. Latest calculations of radiation damage at SNS. United States: N. p., 1999. Web.
Barnett, M.H., Wechsler, M.S., Dudziak, D.J., Charlton, L.A., & Mansur, L.K. Latest calculations of radiation damage at SNS. United States.
Barnett, M.H., Wechsler, M.S., Dudziak, D.J., Charlton, L.A., and Mansur, L.K. Wed . "Latest calculations of radiation damage at SNS". United States.
@article{osti_678118,
title = {Latest calculations of radiation damage at SNS},
author = {Barnett, M.H. and Wechsler, M.S. and Dudziak, D.J. and Charlton, L.A. and Mansur, L.K.},
abstractNote = {The Spallation Neutron Source (SNS) is a proposed neutron scattering facility centered at the Oak Ridge National Laboratory. It is designed to use a 1-MW proton beam to provide a 0.5-{micro}s neutron pulse at a 60-Hz frequency. The target material is mercury. The containment vessel for the flowing mercury is constructed of Type 316SS. One of the concerns for the containment vessel is radiation damage due to the incident 1000-MeV protons and secondary particles (both neutrons and protons). The calculations of radiation damage will be critical in determining the predicted lifetime of the target. The three areas of radiation damage investigated are displacements per atom (dpa), helium production, and hydrogen production. The cross sections for the production of atomic displacements per atom (dpa), helium production, and hydrogen production. The cross sections for the production of atomic displacements, helium, and hydrogen have been calculated via computer codes. Low- (E < 20 MeV) and high- (E > 20 MeV) energy cross sections were calculated using SPECTER and the LAHET code system (LCS), respectively. SPECTER bases its cross-section calculations on NDF/B cross-section libraries. The LCS is a Monte Carlo code for the transport and interactions of nucleons, pions, and muons.},
doi = {},
journal = {Transactions of the American Nuclear Society},
number = ,
volume = 80,
place = {United States},
year = {1999},
month = {9}
}