Irradiation response of materials. Final Quarterly technical progress report
The simultaneous production of helium from (n,..cap alpha..) reactions and atomic displacement damage by energetic neutrons in reactor structural alloys is expected to have a strong influence on their irradiation response for first wall and structural applications in fusion power reactors. Charged particle bombardment offers the possibility of assessing the phenomenology and mechanisms of microstructural evolution in a wide range of materials exposed to simultaneous helium injection and creation of atomic displacement damage by a second ion beam. In this program two ion accelerators have been used to simultaneously focus a beam of helium ions and a second ion beam on targets of selected reactor structural alloys. The resulting microstructural changes have been studied for systematic variations in damage rate, irradiation temperature, fluence and appm helium/dpa ratio and compared and correlated with results from companion fission reactor and high energy neutron irradiation studies conducted elsewhere in the DOE program.
- Research Organization:
- Westinghouse Research and Development Center, Pittsburgh, PA (USA)
- DOE Contract Number:
- AC02-77ET52018
- OSTI ID:
- 5630876
- Report Number(s):
- DOE/ET/52018-16; ON: DE82006893
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
700209* -- Fusion Power Plant Technology-- Component Development & Materials Testing
BARYON REACTIONS
CRYSTAL STRUCTURE
ELEMENTS
FLUIDS
GASES
HADRON REACTIONS
HELIUM
MATERIALS
MATERIALS TESTING
MICROSTRUCTURE
NEUTRON REACTIONS
NONMETALS
NUCLEAR REACTIONS
NUCLEON REACTIONS
PHYSICAL RADIATION EFFECTS
PRODUCTION
RADIATION EFFECTS
RARE GASES
TESTING
THERMONUCLEAR REACTOR MATERIALS