EVALUATION OF Fe-54(n,2n)Fe-53m+g REACTION CROSS SECTIONS FOR HIGH ENERGY DOSIMETRY APPLICATIONS

ISSUES

Authors & Affiliations

Zolotarev K.I., Pashchenko A.B.
Russian Federal Research Center - Institute of Physics and Power Engineering, Obninsk, Russia

Abstract

The new evaluation of excitation function for the high energy threshold ⁵⁴Fe(n,2n)^53m+gFe dosimetry reaction in the energy range from the threshold to 20 MeV is briefly described. The cross section uncertainties and the covariance matrix were estimated simultaneously from the analysis. The adopted curve is compared to the available processed experimental data and the existing FEI-93, ENDF/B-VI and JENDL-3.2 evaluations. The ENDF-6 formatted data file is available from the Web site of the Russian Nuclear Data Center (RNDC) online (http://www.rndc.ippe.obninsk.ru).

Keywords
excitation function, reaction ⁵⁴Fe(n,2n)^53m+gFe, dosimetry reaction, high energy threshold, covariance matrix, uncertainties

Article Text (in English, PDF, Translated by IAEA)

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UDC 539.17

Problems of Atomic Science and Technology. Series: Nuclear Constants, issue 2, 2000

BROND-3.1

ISSUES

EVALUATION OF Fe-54(n,2n)Fe-53m+g REACTION CROSS SECTIONS FOR HIGH ENERGY DOSIMETRY APPLICATIONS