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Effects of High Energy Proton Radiation on the Corrosion of Materials.

PB2001105742

Publication Date	2001
Personal Author	Lillard, R. S.; Gac, F.; Paciotti, M.; Ferguson, P.; Daemen, L.
Page Count	16
Abstract	This paper presents a summary of our current efforts to characterize the real-time corrosion rates of materials during 800 MeV proton radiation at currents up to 0.4 mA. Specially designed corrosion probes, which incorporated ceramic seals, were mounted in flow tubes on a water manifold that allowed samples to be directly exposed to the proton beam at the Los Alamos Neutron Science Center. The water system that supplied the manifold provided a means for controlling water chemistry, measuring dissolved hydrogen concentration, and measuring the effects of water radiolysis and water quality on corrosion rate. Real-time corrosion rate measurements during proton irradiation showed an exponential increase in corrosion rate with proton beam current. In addition, for any given material type, a trend in corrosion rate with probe location relative to the beam centerline was observed. These results are discussed within the context of particle type, particle flux, and energy deposition.
Keywords	Corrosion Materials testing Proton beams Radiation effects Spectroscopy Particle flux Energy deposition Hydrogen Water quality Steels Alloys
Source Agency	Technical Information Center Oak Ridge Tennessee
NTIS Subject Category	71L - Materials Degradation & Fouling
Corporate Authors	Los Alamos National Lab., NM.; California Univ., Berkeley.; Department of Energy, Washington, DC.
Supplemental Notes	Prepared in cooperation with California Univ., Berkeley. Sponsored by Department of Energy, Washington, DC.
Document Type	Technical Report
NTIS Issue Number	200117
Contract Number	DE-W-7405-ENG-36

Effects of High Energy Proton Radiation on the Corrosion of Materials.

Effects of High Energy Proton Radiation on the Corrosion of Materials.
PB2001105742

Publication Date	2001
Personal Author	Lillard, R. S.; Gac, F.; Paciotti, M.; Ferguson, P.; Daemen, L.
Page Count	16
Abstract	This paper presents a summary of our current efforts to characterize the real-time corrosion rates of materials during 800 MeV proton radiation at currents up to 0.4 mA. Specially designed corrosion probes, which incorporated ceramic seals, were mounted in flow tubes on a water manifold that allowed samples to be directly exposed to the proton beam at the Los Alamos Neutron Science Center. The water system that supplied the manifold provided a means for controlling water chemistry, measuring dissolved hydrogen concentration, and measuring the effects of water radiolysis and water quality on corrosion rate. Real-time corrosion rate measurements during proton irradiation showed an exponential increase in corrosion rate with proton beam current. In addition, for any given material type, a trend in corrosion rate with probe location relative to the beam centerline was observed. These results are discussed within the context of particle type, particle flux, and energy deposition.
Keywords	Corrosion Materials testing Proton beams Radiation effects Spectroscopy Particle flux Energy deposition Hydrogen Water quality Steels Alloys
Source Agency	Technical Information Center Oak Ridge Tennessee
NTIS Subject Category	71L - Materials Degradation & Fouling
Corporate Authors	Los Alamos National Lab., NM.; California Univ., Berkeley.; Department of Energy, Washington, DC.
Supplemental Notes	Prepared in cooperation with California Univ., Berkeley. Sponsored by Department of Energy, Washington, DC.
Document Type	Technical Report
NTIS Issue Number	200117
Contract Number	DE-W-7405-ENG-36