Level densities of iron isotopes and lower-energy enhancement of y-strength function

Conference · Tue Aug 30 00:00:00 EDT 2005

OSTI ID:875643

Voinov, A V; Grimes, S M; Agvaanluvsan, U; Algin, E; Belgya, T; Brune, C R; Guttormsen, M; Hornish, M J; Massey, T N; Mitchell, G; Rekstad, J; Schiller, A; Siem, S

The neutron spectrum from the {sup 55}Mn(d,n){sup 56}Fe reaction has been measured at E{sub d} = 7 MeV. The level density of {sup 56}Fe obtained from neutron evaporation spectrum has been compared to the level density from Oslo-type {sup 57}Fe({sup 3}He, a{gamma}){sup 56}Fe experiment [1]. The good agreement supports the recent results [1, 8] including an availability of a low-energy enhancement in the {gamma}-strength function for iron isotopes. The new level density function allowed us to investigate an excitation energy dependence of this enhancement, which is shown to increase with increasing excitation energy.

• Research Organization: Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
• Sponsoring Organization: USDOE
• DOE Contract Number: W-7405-ENG-48
• OSTI ID: 875643
• Report Number(s): UCRL-PROC-215395; TRN: US0600749
• Resource Relation: Conference: Presented at: Capture Gamma-Ray Spectroscopy -12, So. Bend, IN, United States, Sep 04 - Sep 09, 2005
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
AVAILABILITY
ENERGY DEPENDENCE
ENERGY-LEVEL DENSITY
EXCITATION
IRON ISOTOPES
NEUTRON EMISSION
NEUTRONS
SPECTROSCOPY