High-power spallation neutron sources will require accurate estimates of cross sections for generation of helium and hydrogen in structural materials. At high proton energies, very high levels of gas atoms are generated in all constituents of typical iron-based and nickel-based structural alloys, with helium typically ~150 appm/dpa and hydrogen at levels ~3 to 5 times higher. Improved estimates of these cross sections have been derived from a series of irradiations conducted at relatively low temperatures (
Revised: March 28, 2003 |
Published: December 1, 2002
Citation
Oliver B.M., M.R. James, F.A. Garner, and S.A. Maloy. 2002."Helium and Hydrogen Generation in Pure Metals Irradiated with High Energy Protons and Spallation Neutrons in LANSCE."Journal of Nuclear Materials 307-311, part 2.PNNL-SA-35288.