Browse > Article

Neutron Cross Section Evaluation on Dy Isotopes  

Lee, Y. D. (Korea Atomic Energy Research Institute)
J. H. Chang (Korea Atomic Energy Research Institute)
Publication Information
Nuclear Engineering and Technology / v.34, no.2, 2002 , pp. 154-164 More about this Journal
Abstract
Neutron cross section data on Dy-160, Dy-161, Dy-162, Dy-163 and Dy-164 were calculated and evaluated in the energy range of 1 keV to 20 MeV using a spherical optical model, statistical model and pre-equilibrium model. The energy dependent optical model potential parameters were obtained based on the recent experimental data. The width fluctuation correction in Hauser-Feshbach particle decay and the quantum mechanical approach in pre-equilibrium analysis were introduced and gave a better cross section calculation in EMPIRE-II. The total, elastic scattering and threshold reaction cross sections were evaluated and compared with the evaluated files. The model calculated (n, tot), (n, ${\gamma}$) and (n, p) cross sections were in good agreement with the experimental data in the measured energy range. The results will be applied to ENDF/B-VI for data improvement.
Keywords
cross section; evaluation; optical model potential; EWDF/B-VI;
Citations & Related Records
연도 인용수 순위
  • Reference
1 V. N. Kononov et al, Fourth Int. Symp. On Neutron Capture Gamma-rav Spectroscopy and Related Topics, Sept. 7-11, Grenoble, EXFOR 40621.3-6, (1981)
2 E. Anders and N. Grevesse, Geochim. Cosmochim. Acta 53, 197 (1989)   DOI   ScienceOn
3 S.Y. Oh et al., 'Evaluation of Neutron Cross Sections by Dy Isotopes in the Resonance Region,' J. of KNS, Vol.33 (1), 46-61, (2001)   과학기술학회마을
4 R. D. Lawson, 'ABAREX_A Neutron Spherical Optical-Statistical Model Code,' in Workshop on Computation and Analysis of Nuclear Data Relevant to Nuclear Energy and Safety, pp447-516, Trieste, Feb. 10 - Mar. 13, 1992
5 T. Tamura, T. Udagawa, H. Lenske, Phys. Rev. C26, 379 (1982)
6 H. Nishioka, J. J. M. Verbaarschot, H. A. Weidenmuller and S. Yoshida, Ann. Phys. 172 (1986)   DOI   ScienceOn
7 A. N. Djumin, 'Nuclear Radii for Some Isotopes Derived from Total Neutron Cross- Sections,' C, Kiev, 2, 74, (1977)
8 S. M. Qaim, 'Precision Measurements and Sustematics of (n,2n) (n,p) and (n,a) Reaction Cross-Sections at 14.7 MeV,' J, JIN, 35, 3669, (1973)
9 H. Beerm G. Walter, 'Neutron Capture Cross Sections and Solar Abundances of 160,161Dy, 170,171Yb, 175,176Lu, and 176,177Hf for the S-process Analysis of the Radionuclide 176Lu,' Physical Review C, Vol. 30, No. 2, 464-478, aug. (1984)   DOI
10 M. V. Bokhovko et al., 'The Fast Neutron Radiation Capture for Dysprosium Isotopes,' J. YK, (4), 8, 1988
11 A. E. Johnsrud et al, 'Energy Dependence of Fast-Neutron Activation Cross Section,' J. of Phys. Rev. Vol.116(927), (1959)   DOI
12 L. R. Fawcett et al, 'Neutron Capture Cross Sections in the keV Region for 154-Sm, 160-Gd, 164-Dy, and 165-Ho,' Nucl. Sci. and Eng. Vol.49(317), (1972)
13 S.F. Mughabghab, Neutron Cross Sections, Vol.1, Part B, (1984)
14 H. Sakane et al., 'Measurement of Formation Cross Section of Short-Lived Nuclei by 14 MeV Neutrons - Nd, Sm, Dy, Er, Yb,' S, JAERI-97-004, 193, (1996)
15 M. Herman, Empire-2:Statistical Model Code for Nuclear Reaction Calculations IAEAm Vienna, (2000)
16 P. G. Young, Handbook for calculations of nuclear reaction data reference library, Reference Input Parameter Library (RIPL), IAEA, (1998)
17 F. Voss et al, 'Stellar Neutron Capture Cross Sections of Pr and Dy Isotopes,' Physical Review C, Vol. 59, No. 2, 1154-1170, Feb, (1999)   DOI   ScienceOn
18 Y. D. Lee, 'ABRXPL development for parameter decision of spherical optical model potential,' KAERI, NDL-14/99