SEDL / STP / STP1228-EB / STP15165S

Evaluation of the ⁹³Nb(n,n') ^93mNb and ⁹³Nb(n,2n) ^92mNb Reactions Cross-Sections from Threshold to 20 MEV.

Badikov, SA
Senior scientific officer, Institute of Physics and Power Engineering, Obninsk,

Zolotarev, KI
Senior scientific officer, Institute of Physics and Power Engineering, Obninsk,

Pages: 10    Published: Jan 1994

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Abstract

The evaluation of the ⁹³Nb(n,n') ^93mNb and ^93mNb(n,2n) ^92mNb reactions cross-sections important for reactor dosimetry was carried out by means of Pade-approximation. The experimental data bases comprise the results of cross-sections measurements performed up to January 1993. The preliminary analysis of experimental cross-sections has been made. The evaluated cross-sections are presented in an analytical form convenient for the use in applications. The files of evaluated cross-sections (File 3) and covariances (Files 30 and 33) in the ENDF-VI format were prepared. The comparison of evaluations from this work and IRDF-90 was performed.