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对加速器驱动洁净核能系统散裂靶问题的探讨 总被引:3,自引:1,他引:2
简述了加速器驱动洁净核能靶系统的研究现状和存在的问题,对进一步可开展的工作提出了建议. The present status of the study on the neutron production rate, the neutron energy spectrum and the radiative nuclear production from the target spallation in accelerator driven clean nuclear system is presented. The Monto Carlo simulation and the related physics are also discussed. Their further improvement and the suggestions for the work to be done in China are proposed. 相似文献
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对 SHIELD程序进行了部分检验,利用SHIELD程序计算质子入射铅的薄靶产生的靶碎片的截面及质量分布和激发函数 ,计算结果较好地再现了实验数据 .并计算了 1 .6Ge V的质子轰击长 60 cm和直径20cm的铅靶的碎片质量分布. The test of part benchmark of SHIELD code was performed. The cross section, mass distribution and excitation function of the fragments (including residual nuclei) in the proton induced spallation reaction on thin Pb target at intermediate energy have been calculated by SHIELD code. And the results are in good agreement with experimental data. The fragment mass distributions from proton induced spallation reaction on thick Pb traget at incident energy 1.6 GeV were also presented. 相似文献
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本文采用非相对论性禁闭势模型讨论了夸克-胶子等离子体中色屏蔽的时间演化和J/ψ、χ及ψ'的产额压低. 相似文献
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We present a study for matching charged tracks reconstructed from the ALICE tracking detectors with the clusters measured in the photon spectrometer. Matching efficiency and contaminations due to wrong matches have been deduced for charged pions and muons. For electrons, the effect of the material in front of PHOS is discussed. 相似文献
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报道了用“联合D0 和D+单双标记”测定衰变分支比的方法 .基于北京谱仪 (BES)在北京正负电子对撞机 (BEPC)质心系能量s =4 .0 3GeV处获取的数据 ,利用联合D0 和D+单双标记的方法 ,可以测定D0 和D+介子单举和遍举衰变分支比 .作为该方法的应用举例 ,利用BES实验组发表的数据 ,在 90 %置信度的情况下 ,测得D+→e+ν衰变过程分支比的上限为Br(D+→e+ν) <1 .6% .此上限值与BES曾发表的结果一致 . 相似文献
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The efficiency for the detection and identification of photons with the ALICE PHOton Spectrometer PHOS has been studied with the Monte-Carlo generated data. In particular, the influence on the efficiency of the PHOS-module edge-effect and of the material in front of PHOS have been examined. 相似文献
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报道了用“联合D0和D+单双标记”测定衰变分支比的方法.基于北京谱仪(BES)在北京正负电子对撞机(BEPC)质心系能量s=4.03GeV处获取的数据,利用联合D0和D+单双标记的方法,可以测定D0和D+介子单举和遍举衰变分支比.作为该方法的应用举例,利用BES实验组发表的数据,在90%置信度的情况下,测得D+→e+ν衰变过程分支比的上限为Br(D+→e+ν)<1.6%.此上限值与BES曾发表的结果一致. 相似文献