On-line mass separator investigation of the new isotope 2.9-sec $sup 116$I

Journal Article · Thu Apr 01 04:00:00 EST 1976 · Phys. Rev., C, v. 13, no. 4, pp. 1601-1608

OSTI ID:4011608

Gowdy, G M; Xenoulis, A C; Wood, J L; Baker, K R; Fink, R W; Weil, J L; Kern, B D; Hofstetter, K J; Spejewski, E H; Mlekodaj, R L; Carter, H K; Schmidt-Ott, W D; Lin, J; Bingham, C R; Riedinger, L L

Using on-line mass separation $sup 116$I has been identified and its half-life determined to be 2.91 +- 0.15 sec. The activity was produced by the $sup 103$Rh($sup 16$O, 3n)$sup 116$I reaction and by the decay of 57-sec $sup 116$Xe. The $sup 116$I decays primarily to the ground state of $sup 116$Te and also to excited states at 678.9 and 1219.1 keV. From positron measurements, a decay energy of Q/sub E//sub C/ = 7.71 +- 0.20 MeV is assigned to $sup 116$I. $gamma$ rays of 540.2 and 678.9 keV are observed in this decay and are assigned to depopulate levels in $sup 116$Te at 1219.1 and 678.9 keV, respectively. The former is a new level with a probable spin-parity of either 2$sup +$ of 0$sup +$. From the logft values, a spin-parity assignment of 1$sup +$ is deduced for the ground state of $sup 116$I, which is interpreted to have a configuration of $pi$ (d$sub 5$$/$$sub 2$) $nu$ (d$sub 3$$/$$sub 2$). A decay energy of Q/sub E//sub C/ =4.34 +- 0.20 MeV observed from activity produced by the $sup 104$Pd + $sup 16$O reaction is assigned to $sup 116$Xe. (AIP)

• Research Organization: School of Chemistry, Georgia Institute of Technology, Atlanta, Georgia 30332
• NSA Number: NSA-33-031821
• OSTI ID: 4011608
• Journal Information: Phys. Rev., C, v. 13, no. 4, pp. 1601-1608, Journal Name: Phys. Rev., C, v. 13, no. 4, pp. 1601-1608; ISSN PRVCA
• Country of Publication: United States
• Language: English

Related Subjects

*IODINE 116-- HALF-LIFE
642802*
BETA-PLUS DECAY
ENERGY-LEVEL TRANSITIONS
N68721* --Physics (Nuclear
Experimental)--Nuclear Properties & Reactions
90 <= A <= 149--Radioactive Decay
N68731 --Physics (Nuclear
Experimental)--Nuclear Properties & Reactions
90 <= A <= 149--Energy Levels & Transitions
OXYGEN 16 REACTIONS-- RHODIUM 103-- RHODIUM 103 TARGET
PARITY
SPIN BETA-PLUS DECAY-- XENON 116