Internal conversion coefficients in {sup 134}Cs, {sup 137}Ba, and {sup 139}La: A precise test of theory

Journal Article · Sat Mar 15 00:00:00 EDT 2008 · Physical Review. C, Nuclear Physics

DOI:https://doi.org/10.1103/PHYSREVC.77.034306· OSTI ID:21189824

Nica, N; Hardy, J C; Iacob, V E; Balonek, C; Trzhaskovskaya, M B ^[1]

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1. Cyclotron Institute, Texas A and M University, College Station, Texas 77843 (United States)

Recently we measured the ratio of K-shell internal conversion coefficients, {alpha}{sub K}, for the 127.5-keV E3 transition in {sup 134}Cs and the 661.7-keV M4 transition in {sup 137}Ba. We here report a measurement of the 165.9-keV M1 transition in {sup 139}La, based on which we convert our earlier ratio measurement into individual {alpha}{sub K} values for the transitions in {sup 134}Cs and {sup 137}Ba. These results continue to confirm the Dirac-Fock calculations of internal conversion coefficients that incorporate the atomic K-shell vacancy.

• OSTI ID: 21189824
• Journal Information: Physical Review. C, Nuclear Physics, Vol. 77, Issue 3; Other Information: DOI: 10.1103/PhysRevC.77.034306; (c) 2008 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA); ISSN 0556-2813
• Country of Publication: United States
• Language: English

Related Subjects

73 NUCLEAR PHYSICS AND RADIATION PHYSICS
BARIUM 137
CESIUM 134
DIRAC EQUATION
E3-TRANSITIONS
HARTREE-FOCK METHOD
INTERNAL CONVERSION
K SHELL
KEV RANGE
LANTHANUM 139
M1-TRANSITIONS
M4-TRANSITIONS