1.  Alpha-Beta Scintillation Detector
2.  Detector type: ZnS(Ag) adhered to 0.25 mm (0.01 in.) thick plastic scintillator
3.  Window : 1.2 mg/cm² metalized polyester
4.  Window Area : Active: 100 cm² (15.5 in²),  Open: 88 cm² (13.6 in²)
5.  Protective screen : 0.79 mm (0.031 in.) thick, 6.5 mm (0.26 in.) square openings, 88% open
6.  Outer Dimensions (L x W): 168 x 92 mm (6.6 x 3.6 in.)
7.  Tool-less removal for quick window replacements
8.  Efficiency (4π): ⁹⁹Tc: 15%, ⁹⁰Sr/⁹⁰Y: 20%, ²³⁹Pu: 20%
9.  Typical Backgraound -  Alpha: 3 cpm or less, Beta: 300 cpm or less