Model GSP-2 NaI Scintillation Detector

MicroR Detector, sensitive 2"x2" Crystal, for Gamma and X-ray

GSP-2 NaI Scintillation detector by Johnson Nuclear

The Model GSP-2 is recommended for moderate energy gamma detection. The larger detector crystal greatly enhances the sensitivity. Energy response ranges from 50 keV to 2 MeV. This 2"x2" sodium iodide detector is recommended for use with  channel analyzers. The detector is housed in a rugged aluminum housing with magnetic shielding. A BNC connector is included for easy field replacement.

General Use: Low Level Gamma Dose Rate/Count Rate Measurements
Detector Type: 2 inch x 2 inch NaI Scintillator
CPM Range: 0-999.9 Kcpm
Dose Range: 1 µR/hr -2 mR/hr (Cs137)
Energy Response: 40keV – 2 MeV (Energy Dependent)
Sensitivity: (Cs137 gamma) ≈ 800cpm/µR/hr
Efficiency: (4π) ≈ 9%
Background: (10 µR/hr) ≈ 8500 cpm
Operating Voltage: 600 – 1100 vdc
Dead Time ≈ 35 µsec
Compatibility: DSM-500 and DSM-525 Rate Meters
Environmental: -20°F [-28°C] to 140°F [60°C] 5-95% RH
Connector: BNC (other types available)
Dimensions: 2.5″ (6.25cm) Dia x 10” (25cm) L
Weight: 30 oz (0.85 kg)


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