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Chinese Physics C> 2001, Vol. 25> Issue(12) : 1171-1177 

Model Calculation and Analysis of n+11B Reactions below 20MeV

  •  Department of Physics, Northwest University, Xi′an 710069, China2 China Nuclear Data Center, Beijing 102413, China

  • A new model, based on unified Hauser-Feshbach and exciton model, for neutron induced light nucleus reaction has been developed. In case of E n≤20MeV, the total cross section, non-elastic cross section, elastic angular distribution, and the energy-angular spectra of outgoing neutrons in n+11B reaction have been calculated. Especially the double-differential cross section of outgoing neutrons particles of the 11B(n,xn) reaction are calculation. Because of strong recoil effect in light nucleus reactions, the energy balance is strictly takeninto account. In case of 11B, it has more reaction channels and complex reaction mechanism, and the two-body separations are also included in the calculation. This new model describes these characters of 11B very well. From the comparison between calculated results and experimental data, one can see that this model works well in calculation both for cross section and for energy-angular distributions of outgoing neutrons.
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  • References

    [1] . ZHANG JingShang.Nucl.Sci.Eng.,1993,114:552. ZHANGJ ingShang,WEN YuanQi.Chin.J.of Nucl.Phys.,1994,16:153 3. ZHANG JingShang.Fast Neutron Physics,1996,5:2014. ZHANG JingShang.Proc.Int.Conf.on Nuclear Data for Basic Science and Technology.Gatlinburg,Tennesse.,1994,May9–13:9325. ZHANG JingShang,ZHOU SuiJiang.Chin.J.of Nucl.Phys.,1996,18:28 6. Lane R O et al.J.PR/C .,1970,2:2097 7. Auchampaugh G F ,Plattard S,Hill N W .J.NSE .,1979,69:30 8. Coon J H ,Graves E R ,Barschall H H .J.PR .,1952,88:5629. Cook C F ,Bonner T W .J.PR .,1954,94:65110. Mooring F P ,Monahan J E ,Huddleston C M .J. NP .,1966,82:16 11. Baba M et al.C .85SANTA .,1985,1:223

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YANG Bin, ZHANG Jing-Shang and SUN Xiu-Quan. Model Calculation and Analysis of n+11B Reactions below 20MeV[J]. Chinese Physics C, 2001, 25(12): 1171-1177.
YANG Bin, ZHANG Jing-Shang and SUN Xiu-Quan. Model Calculation and Analysis of n+11B Reactions below 20MeV[J]. Chinese Physics C, 2001, 25(12): 1171-1177. shu
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Received: 2000-12-27
Revised: 1900-01-01
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Model Calculation and Analysis of n+11B Reactions below 20MeV

    Corresponding author: YANG Bin,
  • Department of Physics, Northwest University, Xi′an 710069, China2 China Nuclear Data Center, Beijing 102413, China
  • Received Date: 2000-12-27
  • Accepted Date: 1900-01-01
  • Available Online: 2001-12-05

Abstract: A new model, based on unified Hauser-Feshbach and exciton model, for neutron induced light nucleus reaction has been developed. In case of E n≤20MeV, the total cross section, non-elastic cross section, elastic angular distribution, and the energy-angular spectra of outgoing neutrons in n+11B reaction have been calculated. Especially the double-differential cross section of outgoing neutrons particles of the 11B(n,xn) reaction are calculation. Because of strong recoil effect in light nucleus reactions, the energy balance is strictly takeninto account. In case of 11B, it has more reaction channels and complex reaction mechanism, and the two-body separations are also included in the calculation. This new model describes these characters of 11B very well. From the comparison between calculated results and experimental data, one can see that this model works well in calculation both for cross section and for energy-angular distributions of outgoing neutrons.

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