LOW-ENERGY NEUTRON RESONANCES IN ERBIUM AND GADOLINIUM
The two neutron resonances in Er at 0.46 and 0.58 ev were measured using samples enriched in Er/sup 166/, Er/sup 167/, and Er/sup 168/. It was found that both resonances occur in the target nucleus Er/sup 167/. The isotopic cross sections of Gd/sup 155/ and Gd/sup 157/ were measured from 0.02 to 0.30 ev and resonances were found in Gd/sup 155/ at 0.0268 and in Gd/sup 157/ at 0.0314 ev. Parameters for these resonances were derived by fitting the data to single-level Breit-Wigner formulas. lsotopic assignments were made for fifteen Gd resonances between 1 and 25 ev from previously unpublished data using samples enriched in 155, 156, 157, and 158. The Breit-Wigner parameters for three of these were obtained. (auth)
- Research Organization:
- Brookhaven National Lab., Upton, N.Y.
- Sponsoring Organization:
- USDOE
- NSA Number:
- NSA-15-002194
- OSTI ID:
- 4153967
- Journal Information:
- Nuclear Sci. and Eng., Journal Name: Nuclear Sci. and Eng. Vol. Vol: 8
- Country of Publication:
- Country unknown/Code not available
- Language:
- English
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