|Author||Wikner, E. G. ♦ van Lint, V. A. J.|
|Source||United States Department of Energy Office of Scientific and Technical Information|
|Subject Keyword||METALS, CERAMICS, AND OTHER MATERIALS ♦ ATOMS ♦ BREMSSTRAHLUNG ♦ ELECTRONS ♦ ENERGY ♦ IONIZATION ♦ NUCLEAR REACTIONS ♦ PHOTONEUTRONS ♦ RADIATION EFFECTS ♦ RECOILS|
|Abstract||The photoneutron method of producing displacement radiation effects was established. The displacement effects produced by recoils from Si( gamma ,n) reactions were detected by measurement of the change in excess-carrier lifetime. The change in the reciprocal of the lifetime is approximately proportional to the total number of primary reactions at various irradiating bremsstrahlung energies between 15 and 38 Mev, with a proportionality constant of (2.0 x 10/sup -4/ plus or minus 25%)cm/sup 3/sec/sup -1/. The data can be explained on the basis that the primary energy loss of the recoil atomg is due to ionization. Other possible explanations are offered, and a comparison of the results with those of 30-Mev electron irradiations is made. (auth)|
|Learning Resource Type||Article|
|Publisher Department||General Atomic Div., General Dynamics Corp., San Diego, Calif.|
|Organization||General Atomic Div., General Dynamics Corp., San Diego, Calif.|
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