Half-life measurements for the 50 keV and 162 keV states in $^{132}$I

S.K. Das; R. Guin; S.K. Saha

doi:doi:10.1007/s100500050195

EPJ

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2023 Impact factor 2.6

Hadrons and Nuclei

Eur. Phys. J. A 4, 1-3

Short note

Half-life measurements for the 50 keV and 162 keV states in ¹³²I

S.K. Das - R. Guin - S.K. Saha

Radiochemistry Laboratory, Variable Energy Cyclotron Centre B. A. R. C. , I/AF Bidhan Nagar, Calcutta 700 064, India

Received: 28 July 1998 / Revised version: 23 September 1998 Communicated by D. Schwalm

Abstract
¹³²Te was produced via the ²³²Th ( $\alpha$ , fission ) reaction at the Variable Energy Cyclotron , Calcutta. ¹³²Te was separated in carrier-free form from the fission products by radiochemical separation and the half-lives for the 50 keV and 162 keV states of ¹³²I were determined to be 2.94 $\pm$ 0.11 ns and 0.55 $\pm$ 0.04 ns respectively. The present results differ significantly from the previously reported half-lives of 7.14 ns and 3.57 ns for the 50 keV and 162 keV states respectively.

PACS
21.10.Tg Lifetimes - 23.40.-s $\beta$ decay; double $\beta$ decay; electron and muon capture - 95.30.Ky Atomic and molecular data, spectra, and spectral parameters Copacities, rotation constants, line identification, oscillator strengths, gf values, transition probabilities, etc.