Table 3 Intrinsic detection efficiency of GN-Vision in S&A coincidence for γ-rays of energies ranging from 500 keV to 5 MeV. Each column shows the result for a different distance between the S- and A-planes. The uncertainties due to counting statistics are below 0.5%
From: Simultaneous Gamma-Neutron Vision device: a portable and versatile tool for nuclear inspections
Energy (MeV) | Focal distance (mm) | ||
|---|---|---|---|
5 | 15 | 30 | |
0.5 | 1.72 × 10−2 | 1.31 × 10−2 | 8.43 × 10−3 |
1.0 | 2.18 × 10−2 | 1.80 × 10−2 | 1.36 × 10−2 |
2.0 | 2.10 × 10−2 | 1.74 × 10−2 | 1.35 × 10−2 |
5.0 | 2.79 × 10−2 | 2.33 × 10−2 | 1.84 × 10−2 |