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首页> 外文期刊>Applied radiation and isotopes: including data, instrumentation and methods for use in agriculture, industry and medicine >Measurements and calculations of neutron leakage spectra from slabs irradiated with ~(9)Be(d, n)~(10)B ~(2)H(d, n)~(3)He and Pu-Be neutrons
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Measurements and calculations of neutron leakage spectra from slabs irradiated with ~(9)Be(d, n)~(10)B ~(2)H(d, n)~(3)He and Pu-Be neutrons

机译：〜（9）Be（d，n）〜（10）B〜（2）H（d，n）〜（3）He和Pu-Be中子辐照的平板中子泄漏谱的测量和计算

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摘要

The spectra of neutrons from the ~(9)Be(d, n)~(10)B, ~(2)H(d, n)~(3)He and Pu-Be sources passing through slabs of water, graphite, Al, Fe and Pb up to 20 cm in thickness were measured by a pulse height response spectrometer in the 1.5-15 MeV range. The measured leakage spectra have been compared with calculated results obtained using the three dimensional Monte-Carlo code MCNP-4A and point-wise cross sections from the ENDF/B-IV, ENDF/B-VI and JENDL-3.1 data files. A comparison of the measured and calculated data has shown that the MCNP-4A code with an appropriate library can reasonably approximate the measured leakage spectra.
机译：〜（9）Be（d，n）〜（10）B，〜（2）H（d，n）〜（3）He和Pu-Be源中通过水，石墨，用脉冲高度响应光谱仪在1.5-15 MeV范围内测量厚度达20 cm的Al，Fe和Pb。已将测得的泄漏光谱与使用三维蒙特卡洛代码MCNP-4A以及ENDF / B-IV，ENDF / B-VI和JENDL-3.1数据文件的点状横截面获得的计算结果进行了比较。测量数据和计算数据的比较表明，带有适当库的MCNP-4A代码可以合理地近似测量泄漏谱。

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