$gamma$-RAYS FOLLOWING THE /cap beta/-DECAY OF RARE-EARTH /cap alpha/- EMITTERS
Journal Article
·
· J. Inorg. & Nuclear Chem.
The BETA -decay properties of the rare-earth alpha emitters, Dy/sup 150/, Dy/sup 151/, Dy/sup 152/, and Tb/sup 149/, are discussed. By bombardment of stable praseodymium with N/sup 14/ ions at different energies in the Berkeley heavy-ion linear accelerator, the three dysprosium isotopes have been produced. Gamma-spectra have been obtained, and the following gamma rays have been assigned to the decay of the three nuclides; 390 kev (Dy/sup 150/, 145 kev (Dy/ sup 151/) and 255 kev (Dy/sup 152/. Annihilation peaks have been observed to decay with the half lives of the three isotopes, indicating that the nuclides must emit positrons. In addition, the mass assignments of Dy/sup 150/ and Dy/sup 151/, the 8 min and 19 min dysprosium alpha emitters respectively, have been determined with certainty. Tb/sup 149/ has been produced by bombarding stable praseodymium with C/sup 12/ ions. The energies of the gamma rays following the decay of Tb/sup 149/ are
- Research Organization:
- Univ. of California, Berkeley
- NSA Number:
- NSA-13-018511
- OSTI ID:
- 4238517
- Journal Information:
- J. Inorg. & Nuclear Chem., Journal Name: J. Inorg. & Nuclear Chem. Vol. Vol: 10
- Country of Publication:
- Country unknown/Code not available
- Language:
- English
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Related Subjects
ALPHA DECAY
ANNIHILATION
BETA DECAY
CARBON 12
DYSPROSIUM 150
DYSPROSIUM 151
DYSPROSIUM 152
GAMMA RADIATION
HALF-LIFE
ION BEAMS
IONS
IRRADIATION
LINEAR ACCELERATORS
MASS
MEASURED VALUES
NITROGEN 14
NUCLEAR REACTIONS
NUCLEI
PHYSICS AND MATHEMATICS
POSITRONS
PRASEODYMIUM
RARE EARTHS
SPECTRA
TERBIUM 149
ANNIHILATION
BETA DECAY
CARBON 12
DYSPROSIUM 150
DYSPROSIUM 151
DYSPROSIUM 152
GAMMA RADIATION
HALF-LIFE
ION BEAMS
IONS
IRRADIATION
LINEAR ACCELERATORS
MASS
MEASURED VALUES
NITROGEN 14
NUCLEAR REACTIONS
NUCLEI
PHYSICS AND MATHEMATICS
POSITRONS
PRASEODYMIUM
RARE EARTHS
SPECTRA
TERBIUM 149