Fig. 1
From: Preparing for a “dirty bomb” attack: the optimum mix of medical countermeasure resources
The monitoring portal used at the Bundeswehr Institute of Radiobiology (CheckPoint: Gate™ FastTrack-Fibre™ Mobile) with technical specifications. Detection limits are given for different measurement modes and times [32]. Lead shielding 15 mm: cesium-137 [wait in (5 s): 1.35 kBq; walkthrough (0.57 s): 4.8 kBq], americium-241 [wait in (5 s): 29 kBq; walkthrough (0.57 s): 105 kBq]. Lead shielding 30 mm: cesium-137 [wait in (5 s): 1.25 kBq; walkthrough (0.57 s): 4.5 kBq], americium-241 [wait in (5 s): 28 kBq; walkthrough (0.57 s): 100 kBq]