MEASUREMENT OF THE FAST NEUTRON CAPTURE CROSS SECTIONS OF NATURAL NUCLEI Ta AND In

XIANG Zheng-Yu; LI Ye-Xiang; XU Hai-Shan; MU Yun-Shan; WANG Shi-Ming

Chinese Physics C> 1990, Vol. 14> Issue(4) : 340-344

MEASUREMENT OF THE FAST NEUTRON CAPTURE CROSS SECTIONS OF NATURAL NUCLEI Ta AND In

Institute of Nuclear Science and Technology of Sichuan University,Chengdu

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Abstract：
The neutron capture cross sections of Ta and In were measured in the energy range from 0.34 to 1.68MeV.A large liquid scintillator detector was used for detecting the prompt capture γ radiation.Two long-counters were used for monitoring the neutron flux.In order to reduce background the fast coincidence between the two half-spheres of the detector and the time-of-flight technique were used.The capture cross sections of Ta and In were determined relative to the standard cross section of Au.Present results were compared with others and discussed.

References

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蒋松生，"0.1-3MeV 197Au中子俘获截面编评”，hsj-81183(bp) (1982),[2] 朱升云“181Ta中子辐射俘获截面实验数据编评”，hsj-77145(bp), (1978),[3] R. L. Macklin, Nucl. Sci., Eng., 86(1984), 362.[4] 徐海珊等，原子核物理，2(1987)， 127[5] B. C. Diven, Phys, Rev.. 120(1960), 556,[6] D. J. Grady, ANL-83一4, (1983), 179,[7] J. Hellstrom,J.Nucl. Energy, 27(1973), 71.[8] W. P. Poenitz, ANL-83一4, (1983), 239,[9] 向正瑜等，高能物理与核物理，1(1988)， 91,[10] S. F.Mughabghab, Evaluation of the Capture Cross Section of 197Au, BNL-NCS-21774, (1976).

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XIANG Zheng-Yu, LI Ye-Xiang, XU Hai-Shan, MU Yun-Shan and WANG Shi-Ming. MEASUREMENT OF THE FAST NEUTRON CAPTURE CROSS SECTIONS OF NATURAL NUCLEI Ta AND In[J]. Chinese Physics C, 1990, 14(4): 340-344.

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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 THE FAST NEUTRON CAPTURE CROSS SECTIONS OF NATURAL NUCLEI Ta AND In

Corresponding author: XIANG Zheng-Yu,

Institute of Nuclear Science and Technology of Sichuan University,Chengdu

Received Date: 1900-01-01
Accepted Date: 1900-01-01
Available Online: 1990-04-05

Abstract: The neutron capture cross sections of Ta and In were measured in the energy range from 0.34 to 1.68MeV.A large liquid scintillator detector was used for detecting the prompt capture γ radiation.Two long-counters were used for monitoring the neutron flux.In order to reduce background the fast coincidence between the two half-spheres of the detector and the time-of-flight technique were used.The capture cross sections of Ta and In were determined relative to the standard cross section of Au.Present results were compared with others and discussed.