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CONVERSION ELECTRON SPECTRA OF Gd$sup 151$ AND Gd$sup 15$$sup 3$ (in Russian)

Journal Article · · Izvest. Akad. Nauk S.S.S.R. Ser. Fiz.
OSTI ID:4312957
Conversion spectra of long-period gndolinium isotopes obtained after an extensive irradintion of a tantalum target in a scattered proton beam at 660 Mev were studied. First the chemical method was employed to recover the rare-earth fraction; this was followed by the chromatographic recovery of the pure gadolinium fraction containing mostly neutron-deficient isotopes, decaying with electron capture or positron emission. The studies were carried out with a magnetic spectrometer wlth resolving power 0.5%. The film on the counter window let in electrons with energies above 7 kev. The spectra were measured after a month of target irradiation and several times during the following year. It was found that the slowly changing area of the conversion spectrum was related to Gd/ sup 153/and Gd/sup 151/. The decay scheme of Gd/sup 153/ at 200 deg C an Eu/ sup 153/, two variations of Gd/sup 151/ at 200 deg C an Eu/sup 151/, and the Coulomb excitation and decay scheme of Sm/sup 151/ at 200 deg C an Eu/sup 151/ are presented. (R.V.J.)
Research Organization:
Zhdanov Leningrad State Univ.
NSA Number:
NSA-12-013424
OSTI ID:
4312957
Journal Information:
Izvest. Akad. Nauk S.S.S.R. Ser. Fiz., Journal Name: Izvest. Akad. Nauk S.S.S.R. Ser. Fiz. Vol. Vol: 22
Country of Publication:
Country unknown/Code not available
Language:
Russian

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