Model 43-90 Alpha Scintillator

Indicated Use Alpha survey
Detector Type ZnS(Ag) scintillator
Window 0.8 mg/cm² aluminized Mylar
Window Area Active: 125 cm² (19.4 in²)
Open: 100 cm² (15.5 in²)
Protective Screen 0.76 mm (0.030 in.) stainless steel, 6.4 mm (0.25 in.) hex, 79% open
Outer Dimensions (L x W): 190 x 100 mm (7.5 x 3.9 in.)
Efficiency (4π) ²³⁹Pu: 20%
Typical Background (10 µR/hr field) 3 cpm or less
Detector Uniformity 10% or less from average reading
Photomultiplier Tube 38 mm (1.5 in.) diameter
Operating Voltage Typically 500 to 1000 V (1500 V max.)
Temperature Range -20 to 50 °C (-4 to 122 °F)
Environmental Rating IP rating of 63
Connector Series "C" (others available)
Construction Aluminum with beige powder coating
Size (H x W x L) 10 x 10 x 33 cm (4 x 4 x 12.25 in.)
Weight 0.68 kg (1.5 lb)