Electronic Resource
Springer
The European physical journal
209 (1968), S. 254-259
ISSN:
1434-601X
Source:
Springer Online Journal Archives 1860-2000
Topics:
Physics
Notes:
Abstract The absoluteK-conversion coefficients of the 496 keV-124 keV cascadeγ-rays in131Cs have been determined from angular correlation experiments using a new approach. The value ofα K =0.0100±0.0007 obtained for the 496 keV transition is in excellent agreement with the theory whereas a strong case is presented for the existence of an anomalous nuclear-structure-dependent conversion coefficient for the 124 keV transition. TheK-conversion coefficient for this transition has been measured to be 0.742±0.077 giving a value of 1.25±0.13 for the ratioα K (expet) /α K (theory) . The result is interpreted as being due to the presence of electric monopole,E0, electron transition. A value of 0.26±0.14 has been obtained for theE0/E2 electron conversion ratio and the absolute value of the electric monopole matrix element has been determined to be 0.07±0.02.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF01380073
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