Spectroscopic and decay energy measurements for isotopes with 79 less than or equal to A less than or equal to 84 and N approx. = Z

Conference · Thu Jan 01 04:00:00 EST 1981

OSTI ID:6438995

Haustein, P E; Lister, C J; Alburger, D E; Olness, J W; Saha, S

Heavy-ion reactions induced by beams of /sup 24/ /sup 25/ /sup 26/Mg and /sup 28/Si on targets of /sup 58/Ni and /sup 60/Ni have been used to produce a number of new or poorly characterized radioactivities with 79 less than or equal to A less than or equal to 84 and N approx. = Z. The helium-jet recoil transfer technique was employed as a means of continuously preparing essentially massless sources of these radioactivities for extensive x-, ..gamma..-, and ..beta..-ray singles and multiparameter coincidence spectroscopic measurements. The low lying level structure of /sup 80/Sr has been revealed for the first time by the decay of a new isotope /sup 80/Y (T/sub 1/2/ = 34 s). These measurements have also resulted in a considerable clarification of the decay properties of /sup 79/Sr and /sup 81/ /sup 82/Y. Decay energies, Q/sub EC/, and nuclidic mass excesses deduced from them, both show progressively larger deviations from the predictions of currently available mass models for these isotopes, especially as the N = Z line is approached. Preliminary decay data are reported for /sup 83/Zr and /sup 84/Nb, which were both produced as evaporation residues from the /sup 28/Si + /sup 58/Ni reaction.

• Research Organization: Brookhaven National Lab., Upton, NY (USA)
• DOE Contract Number: AC02-76CH00016
• OSTI ID: 6438995
• Report Number(s): BNL-29658; CONF-810649-4; ON: DE81025094
• Country of Publication: United States
• Language: English

Related Subjects

651622* -- Nuclear Properties & Reactions
A=59-89
Experimental-- Radioactive Decay-- (-1987)
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
ALKALINE EARTH ISOTOPES
BETA DECAY RADIOISOTOPES
BETA-PLUS DECAY RADIOISOTOPES
CHARGED-PARTICLE REACTIONS
DECAY
ELECTRON CAPTURE RADIOISOTOPES
ENERGY LEVELS
EVEN-EVEN NUCLEI
EVEN-ODD NUCLEI
HEAVY ION REACTIONS
HOURS LIVING RADIOISOTOPES
INTERMEDIATE MASS NUCLEI
ISOTOPES
MINUTES LIVING RADIOISOTOPES
NEUTRON-DEFICIENT ISOTOPES
NIOBIUM 84
NIOBIUM ISOTOPES
NUCLEAR REACTIONS
NUCLEI
ODD-EVEN NUCLEI
ODD-ODD NUCLEI
RADIOISOTOPES
SECONDS LIVING RADIOISOTOPES
STRONTIUM 79
STRONTIUM 80
STRONTIUM ISOTOPES
YTTRIUM 80
YTTRIUM 81
YTTRIUM 82
YTTRIUM ISOTOPES
ZIRCONIUM 83
ZIRCONIUM ISOTOPES