An Unified Formalism to Study Nonstatistical Effects in Radiative Vapture Reactions

YUAN Zhu-Shu; HUO Yu-Kun; LIU Jian-Feng; LU Zu-Hui

Chinese Physics C> 1991, Vol. 15> Issue(12) : 1086-1093

An Unified Formalism to Study Nonstatistical Effects in Radiative Vapture Reactions

Nuclear Science Department,Fudan University,Shanghai 2004331 Physics Department,Zhengzhou University,450052

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Abstract：
Based upon an consistent description of the wave function of the captured state and the final state,an unified formalism was established to investigate the nonstatistical effects in radiative nucleon capture reactions at energies ranging from 0.1 to 20MeV.This model includes the direct-semidiect capture and the radiative capture in the compound elastic and inelastic channels.By applying this model theory and including also the statistical contributions of the compound nucleus process,the radiative neutron capture cross sections in ²⁷Al,⁵⁵Mn,⁸⁹Y and ²⁰⁸Pb are calculated and the results are compared with the measured data.

References

[1]

Y. K. Ho, J. F. Liu and C. Coceva, Nucl. Data Sci. Tech. (MITO, Japan, 1988), p. 703.[2] B. J. Allen and A. R. de L. Musgrave, Adv. Nucl. Phys., 10(1978), 129.[3] S. Raman et al., Phys. Rev., C41(1990), 458., and references therein.[4] A. M. Lane and S. F. Mughabghab, Phys. Rev., C10(1974), 412.[5] Y. K. Ho and M. A. Lone, Nucl. Phys., A406(1983),1.[6] J. E. Lynn, The theory of Neutron Resonance Reactions (Clarendon, Oxford, 1968).[7] I. Bergqvist, in Neutron Radiative Capture, edited by R. E. Chrien (Pergamon, New Yotk, 1984), p. 33.[8] J. F. Liu, Y. K. Ho and M. A. Lone, in Capture Gamma一Ray Spectroscopy and Related Topics (Knox vine, 1984), AIP Conf. Proc. No. 125, edited by S. Raman (A1P, New York, 1984), p. 551.[9] H. Potakar, Phys. Lett., 46B(1973), 346.[10] P. A. Moldauer, Rev. Mod. Phys., 36(1964), 1079.[11] D. G. Gardner, in Neutron Radiative Capture, edited by R. E. Chrien (Pergamon, New York, 1984),P.62(1984), and references therein.[12] F. D.Becchetti W: Greenless, Phys. Rev., 182(1969), 1190.[13] A. Gilherr and W. Cameron, Can. J. Phys., 43(1965), 1446.[14] J. L. Cook et al, Aust. J. Phys., 20(1967), 477.[15] V.Mclane, C. L: Dunfoid and P. F. Rose, Neutron Cross Section (Academic, New York, 1988), Vol. 2, Neutron Cross Section Curves.[16] Y. K. Ho, Z. S. Yuan and Y. Mi, Phys. Rev., C39(1989), 1691.[17] Y. K. Ho, J. F. Liu and Z. S. Yuan, Phys. Rev., C40(1989), 2541.

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[13]	XIANG Zheng-Yu , LI Ye-Xiang , XU Hai-Shan , MU Yun-Shan , WANG Shi-Ming . MEASUREMENT OF THE FAST NEUTRON CAPTURE CROSS SECTIONS OF NATURAL NUCLEI Ta AND In. Chinese Physics C, 1990, 14(4): 340-344.
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[15]	HUO Yu-Kun , YUAN Zhu-Shu , MI Yong , LIU Jian-Feng . STRONG NON-STATISTICAL EFFECT IN (n,γ)REACTIONS FOR LIGHTER NUCLEI. Chinese Physics C, 1989, 13(5): 465-469.
[16]	XIANG Zheng-Yu , MU Yun-Shan , LI Ye-Xiang , WANG Shi-Ming , XU Hai-Shan . MEASUREMENTS OF NEUTRON CAPTURE CROSS SECTIONS OF WOLFRAM AND GADOLINIUM BETWEEN 560 AND 1610keV. Chinese Physics C, 1988, 12(1): 91-94.
[17]	SONG Xiao-Tong , CHEN Zheng . THE FORMATION CROSS SECTION FOR (dμ) ATOM IN RADIATIVE CAPTURE PROCESS. Chinese Physics C, 1986, 10(6): 647-655.
[18]	HUO Yu-Kun , LIU Jian-Feng . A CONSTRUCTIVE INTERFERENCE EFFECT IN THE CHANNEL RADIATIVE CAPTURE PROCESS. Chinese Physics C, 1986, 10(6): 711-714.
[19]	HO YU-KUN . NEUTRON CAPTURE GAMMA RAY SPECTRA AT LOW ENERGY. Chinese Physics C, 1981, 5(6): 732-740.
[20]	XU GONG-OU . A STATISTICAL DESCRIPTION OF NUCLEAR REACTION PROCESSES. Chinese Physics C, 1979, 3(4): 459-468.

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YUAN Zhu-Shu, HUO Yu-Kun, LIU Jian-Feng and LU Zu-Hui. An Unified Formalism to Study Nonstatistical Effects in Radiative Vapture Reactions[J]. Chinese Physics C, 1991, 15(12): 1086-1093.

YUAN Zhu-Shu, HUO Yu-Kun, LIU Jian-Feng and LU Zu-Hui. An Unified Formalism to Study Nonstatistical Effects in Radiative Vapture Reactions[J]. Chinese Physics C, 1991, 15(12): 1086-1093. shu

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Received: 1900-01-01
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沈阳化工大学材料科学与工程学院沈阳 110142

An Unified Formalism to Study Nonstatistical Effects in Radiative Vapture Reactions

Corresponding author: YUAN Zhu-Shu,

Nuclear Science Department,Fudan University,Shanghai 2004331 Physics Department,Zhengzhou University,450052

Received Date: 1900-01-01

Accepted Date: 1900-01-01

Available Online: 1991-12-05

Abstract: Based upon an consistent description of the wave function of the captured state and the final state,an unified formalism was established to investigate the nonstatistical effects in radiative nucleon capture reactions at energies ranging from 0.1 to 20MeV.This model includes the direct-semidiect capture and the radiative capture in the compound elastic and inelastic channels.By applying this model theory and including also the statistical contributions of the compound nucleus process,the radiative neutron capture cross sections in ²⁷Al,⁵⁵Mn,⁸⁹Y and ²⁰⁸Pb are calculated and the results are compared with the measured data.

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An Unified Formalism to Study Nonstatistical Effects in Radiative Vapture Reactions

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