| 70MeV质子加速器产生的白光中子源强度和能谱的计算 |
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| 引用本文： | 申庆彪.70MeV质子加速器产生的白光中子源强度和能谱的计算[J].原子能科学技术,1996(4). |
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| 作者姓名： | 申庆彪 |
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| 作者单位： | 中国原子能科学研究院核物理研究所 |
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| 摘 要： | 用７０ＭｅＶ质子束轰击厚靶可产生白光中子源。选用金属钨作厚靶材料，应用适用于几十ＭｅＶ能区的核反应模型程序计算了中子能谱和角分布。结果表明：７０ｍｅＶ质子束在钨厚靶中终止前有４．６％的质子发生了反应，２００μＡ的７０ＭｅＶ质子束流产生的中子总强度为１．０１×１０１４Ｓ－１，中子平均能量为４．２ＭｅＶ，１０ＭｅＶ以上的中子强度为１．１５×１０１３Ｓ－１，高能中子主要在朝前的小角度区发射。
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| 关 键 词： | 质子加速器，白光中子源，强度和能谱 |
CALCULATIONS OF INTENSITY AND SPECTRA OF WHITE LIGHT NEUTRON SOURCE PRODUCED BY 70 MeV PROTON ACCELERATOR |
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| Shen Qingbiao.CALCULATIONS OF INTENSITY AND SPECTRA OF WHITE LIGHT NEUTRON SOURCE PRODUCED BY 70 MeV PROTON ACCELERATOR[J].Atomic Energy Science and Technology,1996(4). |
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| Authors: | Shen Qingbiao |
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| Abstract: | White light neutron source can be produced if a thick target is bombarded by intense protonbeam of 70 MeV. Chosing metal tungsten as target material, the calculations are made by usingthe program SPEC. The calculated results show that the reactions occur for 4. 6% of incident 70MeV protons before stopping in W thick target. The total neutron intensity produced by 70 MeVand 200 uA proton beam is 1. 01 x 1014/s. The average neutron energy is 4. 2 MeV. The neutronintensity above 10 MeV is 1. 15 x 1013/s, of which most are emitted in small forward angleregion. This kind of white light neutron source is very useful in practice. |
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| Keywords: | roton cyclotron White light neutron source intensity and spectra |
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