GN1422-FL Specifications

Mica Window Halogen-Quenched
α,β,γ Geiger-Mueller Tube

Electrical Characteristics

Recommended Operating Voltage (volts)900
Operating Voltage Range (volts)850 - 1000
Maximum Dead Time (μs)100
Maximum Plateau Slope (%/100 volts)10
Minimum Anode Resistor (MΩ)3.3
Recommended Anode Resistor (MΩ)3.3
Gamma Sensitivity Cs137 (cps/mR/hr)60
Max. Background Shielded 50mmPb+3mmAl (cpm)30
Tube Capacitance (pF)8

Mechanical Characteristics

Nominal Active Length (inch/mm)0.42 / 10.7
Window Thickness (mg/cm2)1.4 - 2.2 , Mica
Active Diameter (inch/mm)1.75 / 44.5
Cathode MaterialCr - Fe
Cathode Wall Thickness (inch/mm)0.18 / 4.6
Operating Temperature Range (°C)-55 to 75
Fill GasNe/ Ar + Halogen
Type of ConnectorPost
Approx. Weight (grams)114
Maximum Altitude (ft)5000

Equivalent models: ZP1422-FL

Global Nucleonics has the design and engineering capability to produce detectors to your specifications.