| NUCLEAR PHYSICS |
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Measurement of Cross Sections for the 10B(n,α)7Li Reaction at 4.0 and 5.0MeV Using an Asymmetrical Twin Gridded Ionization Chamber |
| ZHANG Guo-Hui**, LIU Xiang, LIU Jia-Ming, XUE Zhi-Hua, WU Hao, CHEN Jin-Xiang
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State Key Laboratory of Nuclear Physics and Technology, Institute of Heavy Ion Physics, School of Physics, Peking University, Beijing 100871
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| Cite this article: |
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ZHANG Guo-Hui, LIU Xiang, LIU Jia-Ming et al 2011 Chin. Phys. Lett. 28 082801 |
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Abstract Cross sections of the 10B(n,α)7Li reaction (including the total, the “leaking” alpha, forward alpha and backward alpha parts) at En =4.0 and 5.0 MeV were measured using an asymmetrical twin gridded ionization chamber and two back−to-back 10B samples. Measurements were performed at the 4.5 MV Van de Graaff accelerator of Peking University. Monoenergetic neutrons were produced through the 2H(d,n)3He reaction with a deuterium gas target. Absolute neutron flux was determined by a 238U sample set inside the gridded ionization chamber and a BF3 long counter was employed as a neutron flux monitor and for normalization. The present results are compared with previous measurements and evaluations.
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| Keywords:
28.20.-v
25.40.-h
29.25.Dz
29.40.Cs
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Received: 24 October 2010
Published: 28 July 2011
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| PACS: |
28.20.-v
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(Neutron physics)
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25.40.-h
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(Nucleon-induced reactions)
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29.25.Dz
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(Neutron sources)
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29.40.Cs
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(Gas-filled counters: ionization chambers, proportional, and avalanche counters)
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