Study of radiation damage in metals by positron annihilation. [Neutron irradiation]

Conference · Sat Jan 01 04:00:00 EST 1977

OSTI ID:5281436

Gauster, W B

Positron annihilation is a sensitive technique for probing defects in metals and it has recently been shown to be a valuable tool for the study of radiation damage. After an introduction to the three basic experimental methods (angular correlation, Doppler broadening, and lifetime measurements), the interaction of positrons with lattice defects is reviewed. Results for the annealing of damage after low temperature irradiation are used to show that positron annihilation has provided new information on annealing kinetics. The role of positron techniques in characterizing complex defect structures resulting from high-temperature neutron irradiation is reviewed and the possible utility of positron annihilation as a nondestructive monitor of property changes is pointed out.

• Research Organization: Sandia Labs., Albuquerque, N.Mex. (USA)
• DOE Contract Number: EY-76-C-04-0789
• OSTI ID: 5281436
• Report Number(s): CONF-771110-5
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360106* -- Metals & Alloys-- Radiation Effects
ANNEALING
ANNIHILATION
BASIC INTERACTIONS
COLLISIONS
CRYSTAL DEFECTS
CRYSTAL LATTICES
CRYSTAL STRUCTURE
ELECTROMAGNETIC INTERACTIONS
ELEMENTS
HEAT TREATMENTS
INTERACTIONS
METALS
PHYSICAL RADIATION EFFECTS
POSITRON COLLISIONS
RADIATION EFFECTS