Cross sections of <sup>64</sup>（n,γ） <sup> </sup>（65）Zn reaction are measured in the energy range from 156to 1150 keV by the activation technique. The activities of the products are counte...Cross sections of <sup>64</sup>（n,γ） <sup> </sup>（65）Zn reaction are measured in the energy range from 156to 1150 keV by the activation technique. The activities of the products are counted with a highresolution HPGe γ-ray spectrometer. The neutron fluence is determined by <sup> </sup>（197）Au（n,γ） <sup> </sup>（198）Aucross section. Experimental activation cross sections are given for the first time. The errors ofthe measured results are 5%-8%.展开更多
The ^232Th（n,γ）^233Th neutron capture reaction cross sections were measured at average neutron energies of 14.1 MeV and 14.8 MeV using the activation method.The neutron flux was determined using the monitor reactio...The ^232Th（n,γ）^233Th neutron capture reaction cross sections were measured at average neutron energies of 14.1 MeV and 14.8 MeV using the activation method.The neutron flux was determined using the monitor reaction^27Al（n,α）^24Na.The induced gamma-ray activities were measured using a low background gamma ray spectrometer equipped with a high resolution HPGe detector.The experimentally determined cross sections were compared with the data in the literature,and the evaluated data of ENDF/B-Ⅶ.1,JENDL-4.0u＋,and CENDL-3.1.The excitation functions of the ^232Th（n,γ）^233Th reaction were also calculated theoretically using the TALYS1.6 computer code.展开更多
Cross-sections for （n, 2n） reactions have been measured on stannum isotopes at the neutron energies of 13.5 to 14.6 MeV using the activation technique. Data are reported for the following reactions： ^112Sn（n, 2n）...Cross-sections for （n, 2n） reactions have been measured on stannum isotopes at the neutron energies of 13.5 to 14.6 MeV using the activation technique. Data are reported for the following reactions： ^112Sn（n, 2n）^111Sn, ^118Sn（n, 2n）^117Sn and ^124Sn（n, 2n）^123mSn. The neutron fluences were determined using the monitor reaction ^93Nb（n, 2n）^92mNb or ^27Al（n, α）^24Na. The results of present work were compared with data published previously.展开更多
The cross sections for the^(63)Cu(n,a)^(60(m+g))Co,^(65)Cu(n,2 n)^(64)Cu, and ^(65)Cu(n,p)^(65)Ni reactions have been studied in the neutron energy range of 13.5–14.8 MeV using the activation technique. The neutron b...The cross sections for the^(63)Cu(n,a)^(60(m+g))Co,^(65)Cu(n,2 n)^(64)Cu, and ^(65)Cu(n,p)^(65)Ni reactions have been studied in the neutron energy range of 13.5–14.8 MeV using the activation technique. The neutron beams were produced via the^3 H(d,n)~4 He reaction. The neutron energies of different directions in the measurements were determined beforehand by the method of cross section ratios for the^(90)Zr(n,2 n)^(89 m+g)Zr and ^(93)Nb(n,2 n)^(92 m)Nb reactions. The results in the present work were discussed and compared with measurement results found in the literatures.展开更多
The cross section for <sup>108</sup>Cd（n,p）<sup>108</sup>Ag<sup>m</sup> reaction is measured by the activationmethod at an incident neutron energy of 14.6±0.2MeV.The result i...The cross section for <sup>108</sup>Cd（n,p）<sup>108</sup>Ag<sup>m</sup> reaction is measured by the activationmethod at an incident neutron energy of 14.6±0.2MeV.The result is 18.1±3.3mb.展开更多
Utilizing the cross sections for 93Nb（n, 2n）93mNb or 27Al（n, a）24Na reactions as monitors, the cross sections for the reactions 115Sn（n, p）115mIn, 116Sn（n, p）116mIn, 117Sn（n, p）117In and 117Sn（n, p）117mIn ...Utilizing the cross sections for 93Nb（n, 2n）93mNb or 27Al（n, a）24Na reactions as monitors, the cross sections for the reactions 115Sn（n, p）115mIn, 116Sn（n, p）116mIn, 117Sn（n, p）117In and 117Sn（n, p）117mIn have been measured at neutron energy ranging from 13.5 to 14.6 MeV through activation technology. Then, the results of present work were compared with the published experimental data.展开更多
A summary is given on the activation cross section measurements performed byChina Institute of Atomic Energy（CIAE）,Lanzhou University（LU）,Peking University（PU）and Sichuan University（SU）from 1989 to 1994 for ge...A summary is given on the activation cross section measurements performed byChina Institute of Atomic Energy（CIAE）,Lanzhou University（LU）,Peking University（PU）and Sichuan University（SU）from 1989 to 1994 for generation of long-lived radionuclides of im-portance in fusion reactor technology.The cross sections are measured for the reactions <sup>109</sup>Ag（n,2n）<sup>108</sup>Ag<sup>m</sup>,<sup>151</sup>Eu（n,2n）<sup>150</sup>Eu<sup>m</sup>,<sup>153</sup>Eu（n,2n）<sup>152</sup>Eu<sup>8</sup>,<sup>159</sup>Tb（n,2n）<sup>158</sup>Tb,<sup>179</sup>Hf（n,2n ）<sup>178</sup>Hf<sup>m2</sup>,<sup>182</sup>W（n,n′α）<sup>178</sup>Hf<sup>m2</sup>,<sup>187</sup>Re（n,2n）<sup>186</sup>Re<sup>m</sup> and <sup>193</sup>Ir（n,2n）<sup>192</sup>Ir<sup>m2</sup>at 14 MeV,<sup>109</sup>Ag（n,2n）<sup>108</sup>Ag<sup>m</sup>,<sup>151</sup>Eu（n,2n）<sup>150</sup>Eu<sup>m</sup>,<sup>159</sup>Tb（n,2n）<sup>158</sup>Tb and <sup>179</sup>Hf（n,2n）<sup>178</sup>Hf<sup>m2</sup>at 9.5 and 9.9 MeV,and<sup>98</sup>Mo（n,γ）<sup>199</sup>Mo（β<sup>-</sup>）→<sup>99</sup>Tc,<sup>165</sup>Ho（n.γ）<sup>166</sup>Ho<sup>m</sup> and <sup>151</sup>Eu（n,γ）<sup>152</sup>Eu<sup>8</sup> in the energy range of20～1100 keV.Some of them were calculated by systematic and HFTT code,which was basedon the compound nucleus evaporation and the preequilibrium exciton model.展开更多
The cross-section data of the 85Rb(n,2 n)84Rb reaction have been measured with the neutron energies of 12 MeV to 19.8 MeV using the activation technique and the relative method.The 85Rb samples were irradiated on the ...The cross-section data of the 85Rb(n,2 n)84Rb reaction have been measured with the neutron energies of 12 MeV to 19.8 MeV using the activation technique and the relative method.The 85Rb samples were irradiated on the surface of a two-ring orientation assembly with neutrons produced from the 3H(d,n)4He reaction at the 5SDH-21.7-MV Tandem accelerator in China.Theoretical model calculations were performed with the TALYS-1.9 code.The present data were compared with previously obtained experimental data and the available evaluated data.展开更多
基金The project supported by China National Nuclear Corporation
文摘Cross sections of <sup>64</sup>（n,γ） <sup> </sup>（65）Zn reaction are measured in the energy range from 156to 1150 keV by the activation technique. The activities of the products are counted with a highresolution HPGe γ-ray spectrometer. The neutron fluence is determined by <sup> </sup>（197）Au（n,γ） <sup> </sup>（198）Aucross section. Experimental activation cross sections are given for the first time. The errors ofthe measured results are 5%-8%.
基金Supported by Chinese TMSR Strategic Pioneer Science and Technology Project-The Th-U Fuel Physics Term(XDA02010100)National Natural Science Foundation of China(11205076,21327801)
文摘The ^232Th（n,γ）^233Th neutron capture reaction cross sections were measured at average neutron energies of 14.1 MeV and 14.8 MeV using the activation method.The neutron flux was determined using the monitor reaction^27Al（n,α）^24Na.The induced gamma-ray activities were measured using a low background gamma ray spectrometer equipped with a high resolution HPGe detector.The experimentally determined cross sections were compared with the data in the literature,and the evaluated data of ENDF/B-Ⅶ.1,JENDL-4.0u＋,and CENDL-3.1.The excitation functions of the ^232Th（n,γ）^233Th reaction were also calculated theoretically using the TALYS1.6 computer code.
基金Supported by the National Natural Science Foundation of China （Nos. 11105081, 11275110 and 11375103） and the National Energy Application Project For Research and Demonstration （No. 20131660315）.
基金Supported by Natural Science Foundation of Gansu Province(3ZS042-B25-026)
文摘Cross-sections for （n, 2n） reactions have been measured on stannum isotopes at the neutron energies of 13.5 to 14.6 MeV using the activation technique. Data are reported for the following reactions： ^112Sn（n, 2n）^111Sn, ^118Sn（n, 2n）^117Sn and ^124Sn（n, 2n）^123mSn. The neutron fluences were determined using the monitor reaction ^93Nb（n, 2n）^92mNb or ^27Al（n, α）^24Na. The results of present work were compared with data published previously.
基金supported by the National Natural Science Foundation of China(Nos.11575090 and 11605099)the Young Key Teachers Training Porgram of He’nan Higher Education in China(No.2015GGJS-258)
文摘The cross sections for the^(63)Cu(n,a)^(60(m+g))Co,^(65)Cu(n,2 n)^(64)Cu, and ^(65)Cu(n,p)^(65)Ni reactions have been studied in the neutron energy range of 13.5–14.8 MeV using the activation technique. The neutron beams were produced via the^3 H(d,n)~4 He reaction. The neutron energies of different directions in the measurements were determined beforehand by the method of cross section ratios for the^(90)Zr(n,2 n)^(89 m+g)Zr and ^(93)Nb(n,2 n)^(92 m)Nb reactions. The results in the present work were discussed and compared with measurement results found in the literatures.
文摘The cross section for <sup>108</sup>Cd（n,p）<sup>108</sup>Ag<sup>m</sup> reaction is measured by the activationmethod at an incident neutron energy of 14.6±0.2MeV.The result is 18.1±3.3mb.
基金Supported by Nature Science Foundation of Lan zhou University of Technology (Q200805)
文摘Utilizing the cross sections for 93Nb（n, 2n）93mNb or 27Al（n, a）24Na reactions as monitors, the cross sections for the reactions 115Sn（n, p）115mIn, 116Sn（n, p）116mIn, 117Sn（n, p）117In and 117Sn（n, p）117mIn have been measured at neutron energy ranging from 13.5 to 14.6 MeV through activation technology. Then, the results of present work were compared with the published experimental data.
基金The project cartied OHt under IAEA Research Agreement No 5060/CF
文摘A summary is given on the activation cross section measurements performed byChina Institute of Atomic Energy（CIAE）,Lanzhou University（LU）,Peking University（PU）and Sichuan University（SU）from 1989 to 1994 for generation of long-lived radionuclides of im-portance in fusion reactor technology.The cross sections are measured for the reactions <sup>109</sup>Ag（n,2n）<sup>108</sup>Ag<sup>m</sup>,<sup>151</sup>Eu（n,2n）<sup>150</sup>Eu<sup>m</sup>,<sup>153</sup>Eu（n,2n）<sup>152</sup>Eu<sup>8</sup>,<sup>159</sup>Tb（n,2n）<sup>158</sup>Tb,<sup>179</sup>Hf（n,2n ）<sup>178</sup>Hf<sup>m2</sup>,<sup>182</sup>W（n,n′α）<sup>178</sup>Hf<sup>m2</sup>,<sup>187</sup>Re（n,2n）<sup>186</sup>Re<sup>m</sup> and <sup>193</sup>Ir（n,2n）<sup>192</sup>Ir<sup>m2</sup>at 14 MeV,<sup>109</sup>Ag（n,2n）<sup>108</sup>Ag<sup>m</sup>,<sup>151</sup>Eu（n,2n）<sup>150</sup>Eu<sup>m</sup>,<sup>159</sup>Tb（n,2n）<sup>158</sup>Tb and <sup>179</sup>Hf（n,2n）<sup>178</sup>Hf<sup>m2</sup>at 9.5 and 9.9 MeV,and<sup>98</sup>Mo（n,γ）<sup>199</sup>Mo（β<sup>-</sup>）→<sup>99</sup>Tc,<sup>165</sup>Ho（n.γ）<sup>166</sup>Ho<sup>m</sup> and <sup>151</sup>Eu（n,γ）<sup>152</sup>Eu<sup>8</sup> in the energy range of20～1100 keV.Some of them were calculated by systematic and HFTT code,which was basedon the compound nucleus evaporation and the preequilibrium exciton model.
基金Supported by National Natural Science Foundation of China(11575163)
文摘The cross-section data of the 85Rb(n,2 n)84Rb reaction have been measured with the neutron energies of 12 MeV to 19.8 MeV using the activation technique and the relative method.The 85Rb samples were irradiated on the surface of a two-ring orientation assembly with neutrons produced from the 3H(d,n)4He reaction at the 5SDH-21.7-MV Tandem accelerator in China.Theoretical model calculations were performed with the TALYS-1.9 code.The present data were compared with previously obtained experimental data and the available evaluated data.
