Radiation cleanup of vacuum systems (radiation-induced outgassing). Progress report, September 15, 1976--September 14, 1977

Technical Report · Wed Jun 01 00:00:00 EDT 1977

DOI:https://doi.org/10.2172/7318696· OSTI ID:7318696

Anno, J. N.

A stainless steel-304 vacuum system has been designed and constructed to study radiation-induced outgassing when this material is exposed to cobalt-60 gamma radiation. The system is pumped with an ion pump and sorption roughing pump. No foreign materials have been introduced except for copper seals at the flanges. An analytical model has been developed which predicts the outgassing from SS-304 to be 8.27 x 10/sup -12/ torr-liters/(cm/sup 2/)(sec) per megarad/hr. Extrapolation of existing data for aluminum suggests a lower value of 1.0 x 10/sup -12/ torr-liters/(cm/sup 2/)(sec) per megarad/hr. Experiments to determine the value are currently in progress.

• Research Organization: Cincinnati Univ., OH (USA)
• DOE Contract Number: EY-76-S-02-4093
• OSTI ID: 7318696
• Report Number(s): COO-4093-1; TRN: 77-015546
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
STAINLESS STEEL-304
DEGASSING
THERMONUCLEAR REACTOR MATERIALS
CLEANING
ANALYTICAL SOLUTION
GAMMA RADIATION
VACUUM PUMPS
VACUUM SYSTEMS
ALLOYS
CHROMIUM ALLOYS
CHROMIUM STEELS
CHROMIUM-NICKEL STEELS
CORROSION RESISTANT ALLOYS
ELECTROMAGNETIC RADIATION
HEAT RESISTANT MATERIALS
HEAT RESISTING ALLOYS
IONIZING RADIATIONS
IRON ALLOYS
IRON BASE ALLOYS
LABORATORY EQUIPMENT
MATERIALS
NICKEL ALLOYS
PUMPS
RADIATIONS
STAINLESS STEELS
STEELS
700209* - Fusion Power Plant Technology- Component Development & Materials Testing