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The extrapolated-efficiencymethod, a new technique to determine the g-cascade detection efficiency in experiments based on the surrogate-reaction method

Abstract : The surrogate-reaction method is an indirect technique to extract neutron-induced cross-sections of short-lived nuclei. In the last years several experiments have been performed to investigate whether this technique can be applied to infer radiative-capture cross-sections. A major difficulty in this type of measurements is the determination of the gamma-cascade detection efficiency. The pulse-height weighting technique (PHWT) has been previously used to determine this quantity in surrogate experiments. In this work, we present a new method to determine the gamma-cascade detection efficiency in the vicinity of the neutron-separation energy that is much simpler than the PHWT. We also investigate the possibility to apply this new technique in standard experiments using neutron beams.
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http://hal.in2p3.fr/in2p3-00761901
Contributor : Nathalie Martin <>
Submitted on : Thursday, December 6, 2012 - 11:20:03 AM
Last modification on : Monday, October 15, 2018 - 3:54:02 PM

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G. Boutoux, B. Jurado, L. Mathieu, V. Méot, M. Aïche, et al.. The extrapolated-efficiencymethod, a new technique to determine the g-cascade detection efficiency in experiments based on the surrogate-reaction method. Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Elsevier, 2013, 700, pp.59-64. ⟨10.1016/j.nima.2012.10.040⟩. ⟨in2p3-00761901⟩

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