A method is provided for performing nondestructive examination of a metal specimen using neutron activated positron annihilation wherein the positron emitter source is formed within the metal specimen. The method permits in situ nondestructive examination and has the advantage of being capable of performing bulk analysis to determine embrittlement, fatigue and dislocation within a metal specimen.
CONTRACTUAL ORIGIN OF THE INVENTION
The United States government has rights in this invention pursuant to Contract No. DE-AC-94ID13223 between the United States Department of Energy and Lockheed Martin Idaho Technologies Company.