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首页> 外文期刊>Review of Scientific Instruments >High‐Energy Neutron Detectors Employing Liquid Scintillators
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High‐Energy Neutron Detectors Employing Liquid Scintillators

机译:采用液体闪烁体的高能中子探测器

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Two liquid scintillation type neutron detectors with efficiencies of the order of 5% for counting 130‐Mev neutrons have been studied. A fairly monoenergetic source of neutrons was obtained from the photodisintegration of deuterons. Estimates were made of the efficiencies of the counters as a function of bias. Experiments indicate: (1) an appreciable effect of the products of neutron reactions with carbon; (2) the efficiency can be more accurately predicted for a small counter although the behavior of large counters can be qualitatively predicted; (3) the attenuation due to a lead shield in the beam depends upon the neutron energy, the bias, and the geometry; (4) lead shielding on the sides is relatively unimportant if kept thin.
机译:已经研究了两个液体闪烁型中子探测器,它们的计数效率为5%,可计数130-Mev中子。从氘核的光分解中获得了相当单能的中子源。估计计数器的效率是偏差的函数。实验表明:(1)中子与碳反应产物的可观影响; (2)尽管可以定性地预测大型计数器的行为,但可以更准确地预测小型计数器的效率; (3)光束中的铅屏蔽层引起的衰减取决于中子能量,偏置和几何形状; (4)如果保持较薄,则侧面的铅屏蔽相对不重要。

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