Study of ^194 Ir via thermal neutron capture and (d,p) reactions

Balodis, M. and Prokofjevs, P. and Kramere, N. and Simonova, L. and Berzins, J. and Krasta, T. and Georgii, R. and Von Egidy, Till and Klora, Jörg and Lindner, Helmut and Mayerhofer, Ulrich and Walter, A. and Cizewski, A. and Colvin, G. G. and Boerner, H. G. and Geltenbort, P. and Hoyler, F. and Kerr, S. A. and Schreckenbach, Klaus and Raemy, A. and Dousse, J. C. and Kern, J. and Schwitz, W. and Kondurov, I. A. and Loginov, Yu. E. and Sushkov, P. A. and Brant, Slobodan and Paar, Vladimir and Lopac, Vjera (1998) Study of ^194 Ir via thermal neutron capture and (d,p) reactions. Fizika B, 7 (1). pp. 15-36. ISSN 1330-0016

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Levels of ^194 Ir were studied using thermal neutron capture reaction. A pair spectrometer was used to measure the high-energy gamma-ray spectrum from thermal-neutron capture in enriched ^193 Ir target over the energy range 4640 - 6100 keV. The low-energy gamma-radiation from the reaction was studied with crystal diffraction spectrometers, and conversion electrons were observed with magnetic spectrometers. The high-sensitivity measurements at the Grenoble reactor, evaluated for transition energies up to 500 keV, are compared with lower-sensitivity measurements at the Wuerenlingen and Salaspils reactors. The comparison helped to obtain reliable isotopic identification for a number of ^194 Ir lines. The multipolarity admixtures for 29 gamma-transitions were determined on the basis of conversion lines from different electron subshells. Prompt and delayed gamma-gamma coincidences were measured using semiconductor and scintillation detectors. The ^193 Ir(d,p) high-resolution spectra, observed with a magnetic spectrometer, are given. All these data contributed to establishing a detailed level scheme of ^194 Ir. Additional data and the interpretation of the results in terms of current models will be presented in a forthcoming paper.

Item Type: Article
Date: 1998
Subjects: NATURAL SCIENCES > Physics
Divisions: Faculty of Science > Department of Physics
Publisher: Hrvatsko fizikalno društvo
Depositing User: Gordana Stubičan Ladešić
Date Deposited: 09 Mar 2014 21:04
Last Modified: 09 Mar 2014 21:04

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