| Popis: |
A fully portable, phoswich-detector-based, radiation survey instrument has been developed. The design takes advantage of the low photon background characteristics of a phoswich scintillator system to detect small amounts of low energy photon emitters such as plutonium and americium. For the portable and unshielded instrument a background reduction of ∼3 compared to an equivalent thin NaI detector is achieved with little loss of sensitivity. With shielding, the background reduction is ∼6 compared to an equivalent thin NaI detector. |
