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MEASUREMENTS OF THE $gamma$-RADIATIONS FROM Eu$sup 162$ BY THE METHOD OF EXTERNAL CONVERSION

Journal Article · · Nuclear Phys.
The photoline spectrum from 10 gamma rays following the decay of 12 y Eu/sup 152/ was studied with a double-focusing beta spectrometer, using a 2.2 mg/cm/sub 2/ U converter. The resulting momentum resolution was 0.6 to 1%, depending on energy. The relative gamma -ray intensities found are in good agreement with those obtuined by Dzelepow and Zhukovsky from a study of recoil electrons. Combining our gamma -ray intensities and the internal conversion datu of Bobykin and Novik, relative values of internal conversion coefficients of the investigated gamma -rays were determined. The multipolarity assignments obtained in this way are discussed within the framework of the unified model, and particular attention is given to the 689 kev transition in Sm/sup 152/ . It is suggested that this radiation is of the E0 + E2 type and is proceeding from a proposed 2 + beta -vibrational state at 811 kev to the 2+ member of the ground- state rotational band. The decay properties of the B11 kev state are discussed in some detufl. (auth)
Research Organization:
Nobel Inst. of Physics, Stockholm
NSA Number:
NSA-13-010442
OSTI ID:
4258344
Journal Information:
Nuclear Phys., Journal Name: Nuclear Phys. Vol. Vol: 10
Country of Publication:
Country unknown/Code not available
Language:
English