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GN204-BNC Specifications

Geiger-Mueller Tube
End Window Halogen Quenched α,β,γ Radiation Tube

Electrical Characteristics

Recommended Operating Voltage (volts)900
Operating Voltage Range (volts)800 - 1000
Maximum Dead Time (μs)150
Maximum Plateau Slope (%/100 volts)8
Minimum Anode Resistor (MΩ)3.3
Recommended Anode Resistor (MΩ)TBD
Gamma Sensitivity Cs137 (cps/mR/hr)22
Max. Background Shielded 50mmPb+3mmAl (cpm)9
Tube Capacitance (pF)TBD

Mechanical Characteristics

Nominal Active Length (inch/mm)1.40 / 35.6
Window Thickness (mg/cm2)1.4 - 2, Mica
Active Diameter (inch/mm)0.78 / 19.8
Cathode MaterialCr , Fe
Cathode Wall Thickness (inch/mm)-
Operating Temperature Range (°C)-40 to 60
Fill GasNe + Halogen
Type of ConnectorBNC
Approx. Weight (grams)30
Maximum Altitude (ft)7000

Equivalent models: N204-BNC ,  N204/BNC

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

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