Benchmark data for /spl gamma/-rays emitted by an Na-24 source penetrating stratified shielding slabs

Experimentally determined scalar flux density spectra are presented for 1.37 and 2.75 MeV photons emitted by an Na-24 uniform disc source penetrating shields of six two-layer combinations. Also, the experimental facility is described. The benchmark data for photon energy 1.37 and 2.75 MeV fill a gap in the energy range of practical interest and provide useful reference values for computational method evaluation.<
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