1.  Lungs burden analysis/ counting system 
2.  High efficiency detection equipment
3.  Highly versatile scanning system for lungs
4.  Fast and simple measurement sequence
5.  Detectors: two 5” x 4” NaI(Tl) scintillators
6.  Compact MCA with 2048 channels
7.  Low-background lead shielding
8.  Efficiency curves evaluated by means of Monte Carlo calculations