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Abstract

Excitation functions were measured for the <SUP>52</SUP>Cr(n,2n)<SUP>51</SUP>Cr, <SUP>52</SUP>Cr(n,p) <SUP>52</SUP>V, <SUP>53</SUP>Cr(n,p) <SUP>53</SUP>V, <SUP>53</SUP>Cr(n,np +pn+d) <SUP>52</SUP>V, <SUP>54</SUP>Cr(n,p) <SUP>53</SUP>V, <SUP>54</SUP>Cr(n,np+pn+d) <SUP>53</SUP>V, and <SUP>53</SUP>Cr(n,alpha)<SUP>51</SUP>Ti reactions from 9 to 21 MeV. Use was made of the activation technique in combination with high-resolution gamma-ray spectrometry. Monoenergetic neutrons produced via the <SUP>2</SUP>H(d,n)<SUP>3</SUP>He and <SUP>3</SUP>H(d,n)<SUP>4</SUP>He reactions were used to irradiate samples of metallic chromium, <SUP>52</SUP>Cr<SUB>2</SUB>0<SUB>3</SUB>, <SUP>53</SUP> Cr<SUB>2</SUB>0<SUB>3</SUB>, and <SUP>54</SUP>Cr<SUB>2</SUB>0<SUB>3</SUB>. The neutron fluence rates were determined via the <SUP>27</SUP>Al(n, alpha) <SUP>27</SUP>Mg, <SUP>27</SUP>Al(n, alpha) <SUP>24</SUP>Na, <SUP>56</SUP>Fe(n, p) <SUP>56</SUP>Mn, and <SUP>93</SUP>Nb(n,2n)<SUP>92m</SUP>Nb monitor reactions. Short-lived activities were investigated using a pneumatic sample transport system. Statistical model calculations taking into account preequilibrium effects were performed for all the reactions using a consistent set of model parameters. The experimental excitation functions helped appreciably to resolve the discrepancies in evaluated data files. Good agreement was found between our experimental data and the new model calculations.

Additional information

Authors: A. Fessler, Institut für Nuklearchemie, Forschungszentrum Jülich GmbH, D-52425 Jülich, Germany;S.M. Qaim, Institut für Nuklearchemie, Forschungszentrum Jülich GmbH, D-52425 Jülich, Germany;E. Wattecamps, Commission of the European Communities, JRC, Institute for Reference Materials and Measurements, B-2440 Geel, BE;D. L. Smith, Commission of the European Communities, JRC, Institute for Reference Materials and Measurements, B-2440 Geel, BE
Bibliographic Reference: Article: Physical Review C, Vol.58 (1998), No.2, pp996-1004
Record Number: 200012021 / Last updated on: 2000-06-09
Category: PUBLICATION
Original language: en
Available languages: en
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