The evaluation is based mainly on the calculations of the nuclear optical model potential and the relevant parameters which are collected and selected from References Input Parameter Library (RIPL-3) which is being developed under the international project coordinated by the International Atomic Energy Agency (IAEA). The analyzing of a complete energy range has been done starting from threshold energy for each reaction. The cross sections are reproduced in fine steps of incident neutron energy with 0.01MeV intervals with their corresponding errors. The recommended cross sections for available experimental data taken from EXFOR library have been calculated for all the considered neutron induced reactions for Dy (Z=66; A=162-164) isotopes. The calculated results are analyzed and compared with the experimental data. The optimized optical potential model parameters give a very good agreement with the experimental data over the energy range 13.4-14.87MeV for neutron induced cross section reactions (n,p) for spherical Dy-162 target element, (n,2H), (n,d), (n,n+p),and (n,p) for spherical Dy-163 target element, and (n,2H) and (n,p) for spherical Dy-164 target element.

Periodical:

International Letters of Chemistry, Physics and Astronomy (Volume 64)

Pages:

19-26

Citation:

I. T. Al-Alawy and F. H. Ahmed, "Recommended Cross Sections and Optical Potential of Dy Isotopes for Neutron Induced Reactions at 14.0 MeV", International Letters of Chemistry, Physics and Astronomy, Vol. 64, pp. 19-26, 2016

Online since:

Feb 2016

Authors:

Distribution:

Open Access

This work is licensed under a

Creative Commons Attribution 4.0 International License

References:

[1] Junhua Luo, Xinxing Wang, Zhenlai Liu, Fei Tuo and Xiangzhong Kong, Activation Cross Sections for 158Dy(n, p)158Tb, 156Dy(n, alpha)153Gd and 160Dy(n, p)160Tb Reactions Induced by Neutrons at 14. 7MeV, Applied Radiation and Isotopes, 67 (2009).

[2] U. Kannan and S. Ganesan, Dysprosium as a Resonance Absorber and its Effect on the Coolant Void Reactivity in Advanced Heavy Water Reactor (AHWR), Annals of Nuclear Energy, 37 (2010) 270-275.

[3] A. O. Kadenko, I.M. Kadenko, V. A. Plujko, O.M. Gorbachenko and G.I. Primenko, Cross Sections of (n, p), (n, alpha), (n, 2n) Reactions on Isotopes of Dy, Er, Yb at 14MeV Neutron Energy, Nuclear Theory arXiv: 1306. 6210v1, 26 June (2013) 1-3.

[4] A. Koning, Christopher Dean, Ulrich Fischer and Robert Mills, Validation of the JEFF-3, Nuclear Data Library, Dats Bank, JEFF, Report 23 Nuclear Energy Agency No. 7079 (2013).

[5] T.V. Varalakshmi, T. n. Suseela, T.G. Gnana Sundaram, T.S. Ezhilarasi and Indrani T.B., Statistics, Tamilnadu Textbook Corporation, College Road, Chennai-600 006. (2005) 98-100.

[6] A.J. Koning and J.P. Delaroche, Local and global nucleon optical models from 1 keV to 200 MeV, Journal of Nuclear Physics A, 713 (2003) 231-310.

[7] M. Hussain, Evaluation of nuclear reaction cross sections relevant to the production of emerging therapeutic radionuclides, Ph.D. thesis, Government College University Lahore, Pakistan (2009).

[8] D. Kim, Y.O. Lee and J. Chang, Calculation of proton – induced reaction on Ti, Fe, Cu and Mo, Journal of the Korean Nuclear Society 31(6) (1999) 595.

[9] M. Herman, Overview of nuclear reaction models used in nuclear data evaluation, Journal of Radiochim. Acta, 89 (2001) 305-316.

[10] P.G. Yong, 4 Optical Model Parameters: Handbook for calculations of nuclear reaction data Reference Input Parameter Library (RIPL), IAEA-TECDOC-1034, August (1998).

[11] C.A. Engelbrecht and H. Fiedeldey, Nonlocal potential and the energy dependence of the optical model for neutrons, Ann. Phys., 42 (1967) 262-295.

[12] H. Sakane, T. Iida, A. Takahashi, H. Yamamoto and K. Kawade, Measurements of activation cross sections producing shore-lived nuclei by 14MeV neutrons, Conf. on Nucl. Data for Sci. and Techn., Trieste, 1 (1997) 619.

[13] H. Sakane, T. Iida, A. Takahashi, H. Yamamoto and K. Kawade, Measurement of formation cross section of short-lived nuclei by 14 MeV neutrons - Nd, Sm, Dy, Er, Yb, Japanese report to the I.N.D.C. No. 178/U (1996) 193.

[14] H. Sakane, Y. Kasugai, M. Shibata, T. Iida, A. Takahashi, T. Fukahori and K. Kawade, Measurement of activation cross section of (n, np+d) reactions producing short-lived nuclei in the energy range between 13. 4 and 14. 9 MeV using an intense neutron source Oktavian, Annals of Nuclear Energy, 29(1) (2002).

[15] Y. Kasugai, Y. Ikeda and Y. Uno, Activation cross section measurements for La, Ce, Pr, Nd, Gd, Dy and Er isotopes by 14 MeV neutrons, Conf. on Nucl. Data for Sci. and Techn., Trieste, 1 (1997) 635.