ON THE NEW NEUTRON-DEFICIENT RARE EARTH ISOTOPES. LUTETIUM WITH MASS NUMBER 167 (in Russian)
Journal Article
·
· Izvest. Akad. Nauk S.S.S.R. Ser. Fiz.
OSTI ID:4277418
The neutron-deficient isotopes were prepared by 660-Mev proton bombardment of Ta. A radioactive nuclide with half life 35 plus or minus 3 min was chromatographically separated from the lutetium fraction. The characteristic Tm/sup 167/ gamma spectrum was observed in the thulum fraction separated simultaneously with ytterbium from the lutetium fraction. The intensity of the bright gamma line with E/sup gamma / = 207 kev diminishes with the half life period of approximates 10 days (publlshed value of Tm/sup 187/ is 9.6 days). Consequently, the existence of the previously unknown Lu/sup 167/ should be considered proven. (R.V.J.)
- Research Organization:
- Khlopin Radium Inst., Academy of Sciences, USSR
- NSA Number:
- NSA-13-005023
- OSTI ID:
- 4277418
- 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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