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Determination of the electromagnetic character of soft dipole modes solely based on quasicontinuous gamma spectroscopy

A. Voinov·A. Schiller·M. Guttormsen·J. Rekstad·S. Siem
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Abstract

We show that the combined analysis of the quasicontinuous gamma spectra from the (He-3,alpha) and the (n-thermal,2gamma) reactions gives the possibility to measure the electromagnetic character of soft dipole resonances. Two-step gamma-cascade spectra have been calculated, using level densities and radiative strength functions from the (He-3,alpha gamma) reaction. The calculations show that the intensity of the two-step cascades depends on the electromagnetic character of the soft dipole resonance under study. The difference reaches 40-100% which can be measured experimentally.

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A. Voinov, A. Schiller, M. Guttormsen, J. Rekstad, S. Siem. 2002-05-14. Determination of the electromagnetic character of soft dipole modes solely based on quasicontinuous gamma spectroscopy. https://doi.org/10.1016/s0168-9002(02)01798-9

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