Defence Technology (Jul 2025)

A compact high flux polarized neutron beam generator

  • Jun Yuan,
  • Tengfei Ma,
  • Jing Pan,
  • Jie Zhang,
  • Cheng Zhang

DOI
https://doi.org/10.1016/j.dt.2025.03.004
Journal volume & issue
Vol. 49
pp. 437 – 446

Abstract

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This paper introduced a compact high flux polarized neutron beam generator scheme, which used air as the working medium and had low energy consumption. The neutron beam generator adopted a linear three compartment configuration, sequentially using nitrogen nucleus tandem near range accelerated polarization target spallation nuclear reaction technology, neutron multiplication technology, neutron beam polarization and near range acceleration technology, neutron focusing and shooting control technology. Through design and equivalent verification, it has been proven that the total length of the device does not exceed 5 m, the effective range can reach several hundred kilometers, the neutron flux at the muzzle is not less than 1025 n·cm−2·s−1, which attenuates to 1010 n·cm−2·s−1 at a distance of several 100 km, and this flux can effectively strike the target. It can be used as a defensive directed energy weapon with high energy density and has broad application prospects.

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