NUCLEAR RESONANCE ABSORPTION IN Dy$sup 161$ SITUATED IN Dy$sub 2$$O$$sub 3$ AND DYSPROSIUM IRON GARNET. Technical Note nO. 1
Technical Report
·
OSTI ID:4122583
The recoil-free resonant absorption of the 26-kev gamma ray emitted in the decay of Tb/sup 161/ by absorbers containing Dy/sup 1/ /sup 61/ was investigated. High Mossbauer efficiencies at room temperatures were observed for sources and absorbers in the form of oxide and rare earth iron garnet. The line shapes obtained were very broad, even up to 100 times the natural width, and showed no resolved sharp lines. The broad lines are interpreted as owing to a wide complicated hyperfine spectrum whose details were smoothed out by transitions between magnetic sub-levels induced by paramagnetic relaxation. The effective magnetic field at the nucleus in the rare earth garnet was about 2 x 10/ sup 6/ oe. (auth)
- Research Organization:
- Hebrew Univ., Jerusalem
- NSA Number:
- NSA-15-000904
- OSTI ID:
- 4122583
- Report Number(s):
- AFOSR-TN-60-1041
- Country of Publication:
- United States
- Language:
- English
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