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GN1201 Specifications

Energy Compensated Geiger-Mueller Tube.
Halogen Quenched, γ Radiation Tube.

Electrical Characteristics

Recommended Operating Voltage (volts)500
Operating Voltage Range (volts)400 - 600
Maximum Dead Time (μs)90
Maximum Plateau Slope (%/100 volts)4
Minimum Anode Resistor (MΩ)10
Recommended Anode Resistor (MΩ)10
Gamma Sensitivity Cs137 (cps/mR/hr)14
Max. Background Shielded 50mmPb+3mmAl (cpm)10
Tube Capacitance (pF)3

Mechanical Characteristics

Nominal Active Length (inch/mm)1.20 / 30.5
Window Thickness (mg/cm2)-
Active Diameter (inch/mm)0.570 / 14.48
Cathode MaterialCr - Fe
Cathode Wall Thickness (inch/mm)0.012 / 0.30
Operating Temperature Range (°C)-40 to 75
Fill GasNe/Ar + Halogen
Type of ConnectorAnode Pin
Approx. Weight (grams)48
Maximum Altitude (ft)TBD

Equivalent models: ZP1201, 7128

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

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