Abstract
The reaction127I(n, γ)128I has been investigated at the tangential facility of the McMaster University Nuclear Reactor using a pair spectrometer. A total of 248 transitions were observed in the photon energy range 4.5–6.8 MeV. Below an excitation energy of 1 MeV more than 50 levels have been inferred. Through use of 28 levels with well established energies, a neutron separation energy of 6826.12±0.05 keV was determined. The level density up to an excitation of 2.5 MeV was examined on the basis of a statistical model and found to agree with current parameter values. TheE1 andM1 strength functions were determined and the influence of the giant dipole resonance on the former investigated.
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On leave from University of Rajshahi, Bangladesh
The authors wish to thank the Natural Sciences and Engineering Research Council of Canada and the Province of Ontario for their financial support. They gratefully acknowledge the help and cooperation of W.B. Clarke of McMaster University.
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Islam, M.A., Kennett, T.J. & Prestwich, W.V. A study of the127I(n, γ)128I reaction. Z. Physik A - Atomic Nuclei 335, 173–182 (1990). https://doi.org/10.1007/BF01294472
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DOI: https://doi.org/10.1007/BF01294472