THE DECAY OF 293 MIN Tc$sup 9$$sup 4$
The 293 min Tc/sup 94/ activity was produced by the reactions Nb/sup 93/ ( alpha , 3n) and Mo/sup 94/(d, 2n). It decays chiefly by electron capture to Mo/ sup 94/ levels at 2425 plus or minus 16 and 1579 plus or minus 7 kev. Weak positon branches to both levels are also observed. Gamma rays (energies in kev) of 846 plus or minus 14(72%), 705 plus or minus 5(100%) and 874 plus or minus 5(100%) are present. The beta transition to the 2425 level is followed by a 3 gamma cascade without crossover transitions. The previously known 52 min Tc/ sup 94/ activity is assigned to Tc/sup 92m/. The x-ray intensity of 52 min half- life is greater than that expected from its decay to Mo/sup 94/. The excess is attributed to a highly converted isomeric transition 52 min yields 293 min. A spin of 5/sup +/ is suggested for Tc/sup 94/. A solvent-extraction procedure for the separation of technetium is described. (auth)
- Research Organization:
- Clark Univ., Worcester, Mass.
- NSA Number:
- NSA-17-024460
- OSTI ID:
- 4703590
- Journal Information:
- Nuclear Physics (Netherlands) Divided into Nucl. Phys. A and Nucl. Phys. B, Journal Name: Nuclear Physics (Netherlands) Divided into Nucl. Phys. A and Nucl. Phys. B Vol. Vol: 42; ISSN NUPHA
- Country of Publication:
- Country unknown/Code not available
- Language:
- English
Similar Records
HALF-LIFE AND DECAY OF NIOBIUM-94
THE DECAY OF 62 min Sn$sup 128$ AND 10.8 min Sb$sup 12$$sup 8$