Fission fragment simulation of fusion neutron radiation effects on bulk mechanical properties

Conference · Tue Sep 21 00:00:00 EDT 1976

OSTI ID:7241457

Van Konynenburg, R A; Mitchell, J B; Guinan, M W; Stuart, R N; Borg, R J

This research demonstrates the feasibility of using homogeneously-generated fission fragments to simulate high-fluence fusion neutron damage in niobium tensile specimens. This technique makes it possible to measure radiation effects on bulk mechanical properties at high damage states, using conveniently short irradiation times. The primary knock-on spectrum for a fusion reactor is very similar to that produced by fission fragments, and nearly the same ratio of gas atoms to displaced atoms is produced in niobium. The damage from fission fragments is compared to that from fusion neutrons and fission reactor neutrons in terms of experimentally measured yield strength increase, transmission electron microscopy (TEM) observations, and calculated damage energies.

• Research Organization: California Univ., Livermore (USA). Lawrence Livermore Lab.
• DOE Contract Number: W-7405-ENG-48
• OSTI ID: 7241457
• Report Number(s): UCRL-78068; CONF-760935-34; TRN: 77-003067
• Resource Relation: Conference: 2. topical meeting on the technology of controlled nuclear fusion, Richland, WA, USA, 21 Sep 1976
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
NIOBIUM
PHYSICAL RADIATION EFFECTS
THERMONUCLEAR REACTOR MATERIALS
MATERIALS TESTING
FISSION FRAGMENTS
MECHANICAL PROPERTIES
NEUTRON REACTIONS
SIMULATION
BARYON REACTIONS
ELEMENTS
HADRON REACTIONS
METALS
NUCLEAR FRAGMENTS
NUCLEAR REACTIONS
NUCLEON REACTIONS
RADIATION EFFECTS
REFRACTORY METALS
TESTING
TRANSITION ELEMENTS
700209* - Fusion Power Plant Technology- Component Development & Materials Testing