Chinese Physics C > 2016, Vol. 40 > Issue(8): 084102 DOI: 10.1088/1674-1137/40/8/084102

The excitation functions of¹⁸⁷Re(n,2n)^186m,gRe reactions

1.
Science and Technology on Nuclear Data Laboratory, China Institute of Atomic Energy, Beijing 102413, China

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Abstract：
A new value for the emission probability of 137.144 keV γ-rays from ^186gRe decay is recommended to be (9.47± 0.03)/%. Using this value the measured cross sections for ¹⁸⁷Re(n,2n) ^186mRe and ¹⁸⁷Re(n,2n) ^186gRe reactions around 14 MeV are analyzed, and the cross section for ¹⁸⁷Re(n,2n) ^{186m + g}Re reaction at 14.8 MeV is (2213± 116) mb. The UNF code was adopted to calculate the cross sections for the ¹⁸⁷Re(n,2n) ^{186m + g}Re reaction below 20 MeV, fitting to the value (2213± 116) mb at 14.8 MeV using a set of optimum neutron optical potential parameters which were obtained based on the relevant experimental data of rhenium. The isomeric cross section ratio for the ¹⁸⁷Re(n,2n) ^186m,gRe reaction was analyzed using the V-H method based on nuclear statistical theory. Combining these calculated results, the excitation functions for the ¹⁸⁷Re(n,2n) ^186mRe and ¹⁸⁷Re(n,2n) ^186gRe reactions were obtained. The obtained results are in good agreement with the available experimental data.
- excitation function,
- isomeric cross section,
- 187Re(n,2n)186m,gRe reaction

References

[1]	X. Huang, H. Lu, W. Zhao et al, INDC(CPR)-045, 17: 23 (1998)
[2]	B. Pashchenko, INDC(NDS)-344, 20: 23 (1997)
[3]	T. Fan, Z. Shi, G. Tang et al, Chin. J. Nucl. Phys., 14, 331: 337 (1992)
[4]	C. S. Khurana, H. S. Hans, Nucl. Phys., 28, 560: 567 (1961)
[5]	R. A. Karam, T. F. Parkinson, W. H. Ellis. AD-402668, 1963
[6]	A. A. Druzhinin. YF-5, 18: 27 (1967)
[7]	J. S. Zhang, Fast Neutron Physics, 1991
[8]	J. Goswamy, B. Chand, D. Mehta et al, Appl. Radiat. Isot, 42, 1033: 1042 (1991)
[9]	B. M. Coursey, J. Cessna, E. Garcia et al, Appl. Radiat. Isot, 42, 865: 874 (1991)
[10]	E. Schonfeld, H. Janssen, U. Schotzig et al, Nucl. Instrum. Methods Phys. Res., A339, 174: 187 (1994)
[11]	B. M. Coursey, J. M. Calhoun, J. Cessna et al, Nucl. Instrum. Methods Phys. Res., A339, 26: 39 (1994)
[12]	H. Miyahara, G. Wurdiyanto, H. Nagata et al, Appl. Radiat. Isot. 52, 573: 580 (2000)
[13]	D. H. Woods, M. Ciocanel, L. J. Husband et al, Appl. Radiat. Isot. 52, 581: 586 (2000)
[14]	H. J. Lu, China Nucl. Phys., 19, 35: 42 (1997)
[15]	A. A. Filatenkov, INDC(CCP)-402, 47: 52 (1997)
[16]	J. R. Hvizenga, Phys. Rev., 120, 1305: 1328 (1960)

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Xiao-Long Huang, Meng-Xiao Kang, Li-Le Liu, Ji-Min Wang and Xiong-Jun Chen. The excitation functions of ¹⁸⁷Re(n,2n) ^186m,gRe reactions[J]. Chinese Physics C, 2016, 40(8): 084102. doi: 10.1088/1674-1137/40/8/084102

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Received: 2015-08-28

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1.
沈阳化工大学材料科学与工程学院沈阳 110142

The excitation functions of¹⁸⁷Re(n,2n)^186m,gRe reactions

Corresponding author:Xiao-Long Huang,

1. Science and Technology on Nuclear Data Laboratory, China Institute of Atomic Energy, Beijing 102413, China

Received Date:2015-08-28
Available Online:2016-08-05

Abstract:A new value for the emission probability of 137.144 keV γ-rays from^186gRe decay is recommended to be (9.47± 0.03)/%. Using this value the measured cross sections for¹⁸⁷Re(n,2n)^186mRe and¹⁸⁷Re(n,2n)^186gRe reactions around 14 MeV are analyzed, and the cross section for¹⁸⁷Re(n,2n)^{186m + g}Re reaction at 14.8 MeV is (2213± 116) mb. The UNF code was adopted to calculate the cross sections for the¹⁸⁷Re(n,2n)^{186m + g}Re reaction below 20 MeV, fitting to the value (2213± 116) mb at 14.8 MeV using a set of optimum neutron optical potential parameters which were obtained based on the relevant experimental data of rhenium. The isomeric cross section ratio for the¹⁸⁷Re(n,2n)^186m,gRe reaction was analyzed using the V-H method based on nuclear statistical theory. Combining these calculated results, the excitation functions for the¹⁸⁷Re(n,2n)^186mRe and¹⁸⁷Re(n,2n)^186gRe reactions were obtained. The obtained results are in good agreement with the available experimental data.