/ Experiment-Nucl nucl-ex/0508008

Level density and radiative strength functions in light nuclei: Co-60 as an example of the method for determination and their reliability verification

Sukhovoj, A.M. (Dubna, JINR) ; Khitrov, V.A. (Dubna, JINR) ; Khang, Pham Dinh (Hanoi U.) ; Tan, Vuong Huu (VAEC, Hanoi) ; Hai, Nguyen Xuan (VAEC, Hanoi)

Pages: 8

Abstract: Up to now, level density for some nuclei (close to construction materials of nuclear reactors with respect to their mass) was determined only from the evaporation nucleon spectra. All its energy dependences obtained are smooth enough functions and are usually reproduced in the frameworks of generalized model of the superfluid nucleus with the use of the phase transition energy of infinite and homogeneous macrosystem. The same data obtained from 59Co(n,2gamma) reaction demonstrate the presence of two clearly expressed step-like structures. This fact corresponds to the analogous data for other nuclei studied in the same way. Level density and radiative strength functions derived from two-step cascade intensities provide more precise reproduction of the total gamma-spectrum than conventional nuclear models.

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 Record created 2010-10-28, last modified 2013-11-12

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