Nuclear Engineering and Technology

Korean Nuclear Society (한국원자력학회)
권호 표지

NEUTRON INDUCED CROSS SECTION DATA FOR IR-191 AND IR-193

  • Published : 2006.12.01
Download PDF
⟨ Previous Next ⟩

Abstract

The neutron induced nuclear cross section data for Ir-191 and Ir-193 were calculated and evaluated from unresolved resonance energy to 20MeV. The energy-dependent optical model potential parameters were determined based on the experimental data and applied up to 20MeV. A spherical optical model, a statistical model in an equilibrium energy region, and a multistep direct and multistep compound model in a pre-equilibrium energy region were used in the calculations. The direct capture model enhanced the fast neutron capture in the pre-equilibrium energy. The theoretically calculated cross sections were compared with the experimental data and the evaluated files. The calculations were found to be in good agreement with the experiment data. The evaluated cross section results were compiled with the ENDF-6 format. The fast energy results will be merged with the resonance parts to create a full evaluation library. The improvement of the neutron-induced cross section data will contribute to an increase in the efficiency of the production of Ir-192 as a radiation source.

Keywords

References

  1. ENDF/B-VI, Brookhaven National Laboratory, Upton, NY, 2000
  2. M. Herman, P. Oblozinsky, R. Capote, M. Sin, A. Trkov, A. Ventura and V. Zerkin. Recent Developments of the Nuclear Reaction Model Code EMPIRE, in the Proceedings of the International Conference on Nuclear Data for Science and Technology, published in AIP Conf. Proc. Vol. 769, p.1184, ISBN 0-7354-0254-X, 2005 https://doi.org/10.1063/1.1945219
  3. Y.D. Lee and J.h. Chang, 'Neutron Cross Section Data Library for Pd-105, Ag-109, Xe-131 and Cs-133,' J. of KNS, vol.37 no. 1, p. 101, 2005
  4. IAEA Nuclear Data Center, www-nds.iaea.org, 2006
  5. D.G. Foster JR, D.W. Glasgow, 'Neutron Total Cross Sections, 2.5 - 15MeV,' J, PR/C, 3, 576, 1971
  6. L. Macklin, D. Drake and J. Malanify, 'Fast Neutron Capture Cross Section of Tm-169, Ir-191, Ir-193 and Lu-175 for Neutron Energy between 3 and 2000keV,' R, LA-7479-MS, 1978
  7. M. Herman, A. Marcinkowski, K. Stankiewicz, 'Cross Sections for (N,2N) Reaction on Ir-191 and Ir-193, J, JP/G, 10, 91, 1984
  8. P. Bornemisza-Pauspertl et al., 'Measurements on the Excitation Cross Sections of Isomeric States by Scattering of 2.8MeV Neutrons,' J, AK, 10, (2), 112, 1968
  9. B. Anders, R.Pepelnik, H.-U.Fanger, 'Application of a Novel 14MeV Neutron Activation Analysis System for Cross Section Measurements with Short-Lived Nuclides,' C, 82ANTWER, 859, 1982
  10. P. E. Koehler and F. Kappeler, 'Measurements of (n,g) Cross Sections for Very Small Stable and Radioactive Samples of Interest to the s- and p-Process,' C, 94GATLIN, 179, 1994
  11. A. A. Filatenkov, S. V. Chuvaev, 'Experimental Determination of Cross Sections of a Set of Badly Known Neutron Induced Reactions for Heavy Elements (Z=74-79),' R, RI-259, 2003
  12. Kong Xiangzhong et al., 'Activation Cross Sections for Generation of Long-Lived Radionuclides,' J, JRN, 227, 15, 1998 https://doi.org/10.1007/BF02386424
  13. M. Herman, A. Marcinkowski, K. Stankiewicz, 'Cross Sections for (N,2N) Reaction on IR-191 and IR-193,' J, NP /A, 430, 69, 1984
  14. C. Konno et al., 'Activation Cross Section Measurement at Neutron Energy from 13.3 to 14.9MeV,' R, JAERI-1329, 1993
  15. S.M. Qaim, 'Activation Cross Sections, Isomeric Cross Section Ratios and Systematics of (n,2n) Reactions at 14-15MeV,' J, NP/A, 185, 614, 1972