Research on Penetration Ratio of Aluminum with D-T Source(In Chinese)

Two-dimension aluminum assembly was established.Their diameters are all 30 cm.The thicknesses are 5 cm,10 cm,15 cm,20 cm and 25 cm,respectively. The energy spectra of penetrative neutron for D -T source were measured for five different thickness assemblies,as well as the neutron energy spectrum of the source.The uncollided neutron and the penetration ratio were obtained. The experiment shows that the penetration radio slowly changed to the uncollided neutron.The factors of experimental measurement influenced were analyzed.The disagreement between the uncollided neutron and the penetration ratio came from the small angle scatter neutron.

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