905 Series NaI(Tl) Scintillation Radiation Detectors

The Model 905 Series offers various sizes of Nal(TI) detectors. These detectors are assembled and supplied to ORTEC by several companies that specialize in the manufacture of Nal(TI) detectors. 

Typical, total counting efficiencies given as a percentage for a 1-µCi ¹³⁷Cs source centered at a distance of 10-cm.

905-1 (1” x 1”): 0.17 @0.5 MeV and 0.09 @2.0 MeV 

905-3 (2” x 2”): 0.75 @0.5 MeV and 0.45 @2.0 MeV 

905-4 (3” x 3”): 2.00 @0.5 MeV and 1.30 @2.0 MeV