Chinese Physics C > 2008, Vol. 32 > Issue(11): 873-876 DOI: 10.1088/1674-1137/32/11/005

A formula used to subtract the effect of gamma-ray of the others to that ofmeasured reaction in measurement of cross section of nuclear reaction andits application

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Abstract：
According to the regulation of growing and decay of artificial radioactive nuclide, a formula used to subtract the effect of characteristic γ-ray of the others to that of measured reaction was deduced. And then the cross sections of¹²⁰Te (n,2n)^119mTe reaction induced by neutrons around 14~MeV were measured by activation relative to the⁹³Nb (n, 2n)^92mNb. In the process of the cross sections measured to be calculated, it was subtracted that the effect of characteristic γ-ray of¹²⁶Te (n, p)¹²⁶Sb to that of measured¹²⁰Te (n, 2n)^119mTe reaction using the formula deduced. The experimental results were (689±37) and (750±41) mb at the neutron energies of (13.5±0.3) and (14.6±0.3)MeV, respectively. Measurements were carried out by γ-detection using a coaxial HPGe detector. As samples, spectroscopically pure tellurium powder has been used. The fast neutrons were produced by the T(d, n)⁴He reaction. The neutron energies in these measurements were determined by the method of cross-section ratios between⁹⁰Zr (n, 2n)^89m+gZr and⁹³Nb (n, 2n)^92mNb reactions.

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ZHOU Feng-Qun, YANG Xing-Qiang, WANG Wei-Feng, LI Yong, ZHANG Fang, TUO Fei and KONG Xiang-Zhong. A formula used to subtract the effect of gamma-ray of the others to that ofmeasured reaction in measurement of cross section of nuclear reaction andits application[J]. Chinese Physics C, 2008, 32(11): 873-876. doi: 10.1088/1674-1137/32/11/005

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Received: 2008-02-18
Revised: 2008-03-19

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通讯作者:陈斌, bchen63@163.com

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沈阳化工大学材料科学与工程学院沈阳 110142

A formula used to subtract the effect of gamma-ray of the others to that ofmeasured reaction in measurement of cross section of nuclear reaction andits application

Corresponding author:ZHOU Feng-Qun,

Received Date:2008-02-18

Accepted Date:2008-03-19

Available Online:2008-11-05

Abstract:According to the regulation of growing and decay of artificial radioactive nuclide, a formula used to subtract the effect of characteristic γ-ray of the others to that of measured reaction was deduced. And then the cross sections of¹²⁰Te (n,2n)^119mTe reaction induced by neutrons around 14~MeV were measured by activation relative to the⁹³Nb (n, 2n)^92mNb. In the process of the cross sections measured to be calculated, it was subtracted that the effect of characteristic γ-ray of¹²⁶Te (n, p)¹²⁶Sb to that of measured¹²⁰Te (n, 2n)^119mTe reaction using the formula deduced. The experimental results were (689±37) and (750±41) mb at the neutron energies of (13.5±0.3) and (14.6±0.3)MeV, respectively. Measurements were carried out by γ-detection using a coaxial HPGe detector. As samples, spectroscopically pure tellurium powder has been used. The fast neutrons were produced by the T(d, n)⁴He reaction. The neutron energies in these measurements were determined by the method of cross-section ratios between⁹⁰Zr (n, 2n)^89m+gZr and⁹³Nb (n, 2n)^92mNb reactions.

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A formula used to subtract the effect of gamma-ray of the others to that ofmeasured reaction in measurement of cross section of nuclear reaction andits application

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