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Electric field gradient and its temperature dependence at /sup 111/Cd in. cap alpha. -uranium

Conference ·
OSTI ID:7167503
The magnitude and temperature dependence of the quadrupole interaction at the /sup 111/Cd site in orthorhombic ..cap alpha..-uranium was investigated between 293 and 17 K. The parent activity /sup 111/In was implanted into uranium metal with an energy of 80 keV and the ..gamma..-..gamma.. TDPAC technique, applied to the 245 keV state in /sup 111/Cd, was used to measure the quadrupole interaction frequency. The derived electric field gradient for Cd in uranium was found to be highly asymmetric (eta = 1) and led to a quadrupole interaction frequency of /sub Q/ = 7.10(7) MHz at 293 K. The temperature dependence of the quadrupole interaction is very strong, /sub Q/ increases to 14.3(2) MHz at 17 K and shows a linear dependence on the temperature. 10 refs., 2 figs.
Research Organization:
Lawrence Livermore National Lab., CA (USA); Bonn Univ. (Germany, F.R.). Inst. fuer Strahlen- und Kernphysik
DOE Contract Number:
W-7405-ENG-48
OSTI ID:
7167503
Report Number(s):
UCRL-94615; CONF-860918-1; ON: DE87002161
Country of Publication:
United States
Language:
English