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LOW TEMPERATURE ANNEALING SPECTRUM OF ELECTRON-IRRADIATED GOLD AND CADMIUM (thesis)

Technical Report ·
OSTI ID:4790250
The resistivity annealing spectrum from 8 to 51 deg K of the damage produced by a flux of 7.5 x 10/sup 17/ 3 Mev electrons/ cm/sup 2/ on 99.999% pure gold and cadmium was studied. The total damage and residual resistivity for gold was 8.5 x 10/sup -9/ and 3 x 10/sup -9/ ohm-cm, and for cadmium 2.32 x 10/sup -9/ and 5.3 x 10/sup -9/ ohm-cm. The gold activation energy spectrum was derived directiy from the isothermal annealing curves. The spectrum consists of at least nine peaks, with 22% of the damage annealing out up to 51 deg K. The results confirm earlier suggestions that the radiation damage in gold is basically different from that of copper and silver. In connection with the amount of low temperature annealing, it is thought that focusing and interstitial clustering is important. Deviations from Mathiesson's rule for gold and cadmium are in qualitative agreement with theory. Only qualitative agreement with an earlier experiment on the annealing of cadmium was confirmed. (auth)
Research Organization:
Illinois. Univ., Urbana
NSA Number:
NSA-16-027695
OSTI ID:
4790250
Report Number(s):
TID-16373
Country of Publication:
United States
Language:
English

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