Chinese Physics C > 1992, Vol. 16 > Issue(8): 731-735

Measurement of Some (n,2N) Reaction Cross Sections for Producing Long Half-Life Residues

Department of Modern Physics,Lanzhou University,730001

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Abstract：
Measurement of (n,2n) reaction cross sections for some nuclides,whose residues have long half-lives,is described.The activation method relative to the ⁹³Nb(n,2n) ^92mNb reaction cross section was used.The cross sections of the ¹⁵¹Eu(n,2n) ^150mEu、 ¹⁵³Eu(n,2n) ¹⁵²Eu、 ¹⁵⁹Tb(n,2n) ¹⁵⁸Tb and ¹⁰⁹Ag(n,2n) ^108mAg reactions in the neutron energy range of 13.50—14.80MeV were measured.The neutron energies in this experiment were determined by means of the method of cross section ratios for ⁹⁰Zr(n,2n) ^89m+gZr and ⁹³Nb(n,2n) ^92mNb reactions.The results obtained were compared with other existing data.

References

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E. T. Cheng, Proc. Int. Conf. Nuclear Data for Science and Technology, Mito, Japan, 30 May-3 June,1988.[2] D. R. Nethaway, Nuclear Phyricr, A190(1972), 635-644.[3] S. M. Qaim, Nuclear Physics, A229(1974), 319-330.[4] R. J. Prestwood et al., Physics Reviem; G'30(1984), 823-825.[5] Lu Hanlin et al., 1NDC(NDS)-232/L, p. 33.[6] J. Csikai et al，INDC(NDS)-232/L, p. 61.[7] M. V. Blinov et al., 1ND以NDS)-232/L, p. 87.[8] Zhao Wenrong, Lu Hanlin, Yu Weixiang, Yuan Xianlin, INDC(CPR)-16, 1989.[9] 王永昌等，高能物理与核物理，14(1990),919,[10] E. Browne and R. B. Firestone, Table of Radioactive Isotopes, 1986.

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WANG Yong-Chang, YUAN Jun-Qian, YANG Jing-Kang, KONG Xiang-Zhong, REN Zhong-Liang and WANG Hua-Min. Measurement of Some (n,2N) Reaction Cross Sections for Producing Long Half-Life Residues[J]. Chinese Physics C, 1992, 16(8): 731-735.

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Received: 1900-01-01
Revised: 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

Measurement of Some (n,2N) Reaction Cross Sections for Producing Long Half-Life Residues

Corresponding author:WANG Yong-Chang,

Department of Modern Physics,Lanzhou University,730001

Received Date:1900-01-01
Accepted Date:1900-01-01
Available Online:1992-08-05

Abstract:Measurement of (n,2n) reaction cross sections for some nuclides,whose residues have long half-lives,is described.The activation method relative to the⁹³Nb(n,2n)^92mNb reaction cross section was used.The cross sections of the¹⁵¹Eu(n,2n)^150mEu、¹⁵³Eu(n,2n)¹⁵²Eu、¹⁵⁹Tb(n,2n)¹⁵⁸Tb and¹⁰⁹Ag(n,2n)^108mAg reactions in the neutron energy range of 13.50—14.80MeV were measured.The neutron energies in this experiment were determined by means of the method of cross section ratios for⁹⁰Zr(n,2n)^89m+gZr and⁹³Nb(n,2n)^92mNb reactions.The results obtained were compared with other existing data.