ISOTHERMAL ANNEALING OF DEUTERON-IRRADIATED Al AND Au BELOW 60 K

Journal Article · Mon Apr 15 04:00:00 EST 1963 · Physical Review (U.S.) Superseded in part by Phys. Rev. A, Phys. Rev. B: Solid State, Phys. Rev. C, and Phys. Rev. D

DOI:https://doi.org/10.1103/PhysRev.130.554· OSTI ID:4731432

Herschbach, K

Foils, made out of 99.999% pure Al (4 mil) and 99.999% pure Au (2 mil), are bombarded with 21-Mev deuterons at a temperature not exceeding 8.5 nif- K. With a total flux of 2.5 x 10/sup 16/ d/cm/sup 2/, the damage introduced is 0.33 x 10/sup -7/ ohmcm and 0.45 x 10/sup -7/ ohm-cm, respectively, about five times smaller than the theoretical value. For Au the 1/E law forthe damage production holds. No radiation annealing is observed for either metal. Isothermal annealing is performed in steps of 1 nif- K for one hour at each temperature. Up to 50 nif- K 65% of the danmage anneals out in Al, 17% in Au. The isochronal plot of the resistance decrease for Al shows a small peak (5%) centered at 17 nif- K, a large one at 34 nif- K, and two at 39 and 46 nif- K. The annealing in Au, appreciable already at the lowest annealing temperature, 9.7 nif- K, is rather constant over the whole temperature range examined except for a large peak at 33 nif- K and a smaller one at 45 nif- K. Changes in the temperature-dependent part of the resistivity can for both metals be explained as a deviation from Mathiessen's rule, as resistance measurements at 6 nif- K indicate. This result is in agreement with measurements on Al and Au alloys. The activation energy spectrum for Al, obtained with a frequency factor of InB = 29, shows also 4 peaks, at rather complex, because of the large range of the interaction of defects and the anisotropy of this metal. A recalculation of data for the annealing of deuteron-irradiated Cu and Ag shows a fine structure. A way to choose the proper temperature increase for isothermal annealing measurements is given. (auth)

• Research Organization: Univ. of Illinois, Urbana
• NSA Number: NSA-17-018884
• OSTI ID: 4731432
• Report Number(s): TID-16343; 0031-899X
• Journal Information: Physical Review (U.S.) Superseded in part by Phys. Rev. A, Phys. Rev. B: Solid State, Phys. Rev. C, and Phys. Rev. D, Journal Name: Physical Review (U.S.) Superseded in part by Phys. Rev. A, Phys. Rev. B: Solid State, Phys. Rev. C, and Phys. Rev. D Vol. Vol: 130; ISSN PHRVA
• Country of Publication: Country unknown/Code not available
• Language: English

Related Subjects

ACTIVATION
ALUMINUM
ALUMINUM ALLOYS
ANISOTROPY
ANNEALING
COPPER
DEFECTS
DEUTERON BEAMS
ELECTRIC CONDUCTIVITY
ENERGY
GOLD
GOLD ALLOYS
INTERACTIONS
IRRADIATION
LATTICES
LOW TEMPERATURE
MEASURED VALUES
METALS, CERAMICS, AND OTHER MATERIALS
RADIATION DOSES
SHEETS
SILVER
SPECTRA
STABILITY