Level Densities and Radiative Strength Functions in 170,171Yb

Agvaanluvsan, U ; Schiller, A ; Becker, J A ; Berstein, L A ; Guttormsen, M ; Mitchell, G E ; Rekstad, J ; Siem, S ; Voinov, A

Lawrence Livermore National Laboratory

关键词: Rare Earth Nuclei;    Ytterbium 171;    Ytterbium 170;    Energy-Level Density;    Strength Functions;   

DOI  :  10.2172/15004543
RP-ID  :  UCRL-ID-153593
RP-ID  :  W-7405-ENG-48
RP-ID  :  15004543

美国|英语

来源: UNT Digital Library

【 摘 要 】

Level densities and radiative strength functions in {sup 171}Yb and{sup 170}Yb nuclei have been measured with the {sup 171}Yb({sup 3}He, {sup 3}He{prime}{gamma}){sup 171}Yb and {sup 171}Yb({sup 3}He,{alpha}{gamma}){sup 170}Yb reactions. A simultaneous determination of the nuclear level density and the radiative strength function was made. The present data adds to and is consistent with previous results for several other rare earth nuclei. The method will be briefly reviewed and the result from the analysis will be presented. The radiative strength function for {sup 171}Yb is compared to previously published work.