SYMPOSIA PAPER Published: 01 January 2007

Spallation Radiation Damage Calculations and Database: Cross-Section Discrepancies between the Codes


A radiation damage database at NCSU is described that contains, at present, cross sections for damage energy, displacements, helium, and hydrogen. For neutrons and protons at 20-3200 MeV energies, the targets include 23 target elements from Mg to U and eight practical alloys. The underlying calculations employ Bertini, ISABEL, and CEM2k intranuclear cascade models as provided within MCNPX, three level-density formulations (GCCI, HETC, and Jülich), and multistage pre-equilibrium model (MPM) on and off. The database also includes radiation damage cross sections for lower-energy neutrons and protons, as obtained from LA150, SPECTER, ENDF, and SRIM. Examples of the database contents are provided with regard to damage energy and displacement cross sections for neutrons on Al, Fe, and W. Also, neutron flux and displacement rate calculations are described for neutrons on Fe and the 316 stainless steel mercury container vessel at SNS. In addition, discrepancies between the codes are discussed.

Author Information

Lu, Wei
North Carolina State University, Raleigh, NC
Wechsler, Monroe, S.
North Carolina State University, Raleigh, NC
Ferguson, Phillip, D.
Spallation Neutron Source, Oak Ridge National Laboratory, Oak Ridge, TN
Pitcher, Eric, J.
Los Alamos National Laboratory, Los Alamos, NM
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Developed by Committee: E10
Pages: 212–219
DOI: 10.1520/STP45446S
ISBN-EB: 978-0-8031-6242-6
ISBN-13: 978-0-8031-3412-6