Average Nuclear Level Densities and Radiative Strength Functions in {sup 56,57}FE from Primary (Gamma)-Ray Spectra
Conference
·
OSTI ID:15002244
An experimental primary {gamma}-ray spectrum vs. excitation-energy bin (P(E{sub x}, E{sub {gamma}}) matrix) in a light-ion reaction is obtained for {sup 56,57}Fe isotopes using a subtraction method. By factorizing the P(E{sub x}, E{sub {gamma}}) matrix according to the Axel-Brink hypothesis the nuclear level density and the radiative strength function (RSF) in {sup 56,57}Fe are extracted simultaneously. A step structure is observed in the level density for both isotopes, and is interpreted as the breaking of Cooper pairs. The RSFs for {sup 56,57}Fe reveal an anomalous enhancement at low {gamma}-ray energies.
- Research Organization:
- Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
- Sponsoring Organization:
- US Department of Energy (US)
- DOE Contract Number:
- W-7405-ENG-48
- OSTI ID:
- 15002244
- Report Number(s):
- UCRL-JC-150505; TRN: US0400663
- Resource Relation:
- Conference: 17th International Conference on the Application of Accelerators in Research and Industry CAARI 2002, Denton, TX (US), 11/12/2002--11/16/2002; Other Information: PBD: 26 Sep 2002
- Country of Publication:
- United States
- Language:
- English
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