Laboratory special neutron shielding plate for radiation protection

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-r Boron-containing polyethylene is a relatively cheap neutron shielding material, and one-dimensional benchmark experiments have been conducted on its neutron shielding properties. Like other neutron shielding materials, this material produces rays under the action of neutrons. Relative to shielding neutrons, radiation is a secondary dose. In boron-containing polyethylene balls, boron mainly plays the role of absorption. The reaction cross section of boron to low-energy neutrons is relatively large. Low-energy neutrons have been basically completely absorbed by boron before the hydrogen reaction occurs. The shielding effect of boron-containing polyethylene on neutrons when the mass percentage of boron-containing polyethylene is ﹪ and the thickness is The requirements have been met.
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