...论文:论审计质量衡量标准体系的构建-中大网校论文网 关键词】 快中子 光子 放射疗法 肉瘤 [gap=870]Key words: fast neutrons; photons; radiotherapy; sarcoma 软组织肉瘤是一种较少见的恶性肿瘤，仅占全部恶性肿瘤的1%。
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pulse fast neutrons 脉冲快中子
mev fast neutrons mev快中子
fast neutrons sputtering 快中子溅射
14 mev fast neutrons mev快中子
A suitable thickness of boron film,slowing fast neutron and using enriched boron can improve both detection efficiency and sensitivity of boron-lined ionization chamber.
适当的硼膜厚度、慢化快中子、选用浓缩硼均有利于提高涂硼电离室探测效率和灵敏度。
参考来源 - 涂硼电离室中子探测效率和灵敏度·2,447,543篇论文数据，部分数据来源于NoteExpress
N a neutron produced by nuclear fission that has lost little energy by collision; a neutron with a kinetic energy in excess of 0.1 MeV (能量超过0.1MeV的)快中子
N a neutron with a kinetic energy in excess of 1.5 MeV, the fission threshold of uranium-238 (能量超过1.5MeV的)高速中子
Fast neutrons are also captured by nitrogen.
快中子也可以被氮吸收。
Another important kind of interferences in reactor NAA is due to threshold reaction induced by reactor fast neutrons.
堆中子活化分析中的另一重要干扰是堆快中子引起的阈反应干扰。
The researchers used fast neutrons to irradiate mouse embryos between the blastocyst stage and the beginning of somite formation.
研究人员用快中子照射在胚泡期和体节形成开始之间的小鼠胚胎。
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