This is the commonly-known LND712 end window Alpha-Beta-Gamma detector tube. Great for use in Geiger Counters like the one featured in Nuts & Volts Magazine: A Recording Radiation Counter. Here is a link to the Complete Kit: Geiger Counter Kit.
General Specifications:
- Gas Filling: Ne + Halogen
- Cathode Material: 446 Stainless Steel
- Maximum Length: 1.94 in/49.2 mm
- Effective Length: 1.5 in/38.1 mm
- Maximum Diameter: 0.59 in/15.1 mm
- Effective Diameter: 0.36 in/9.1 mm
- Operating Temperature Range: -10°C to 75°C
Window Specifications:
- Areal Density: 1.5-2.0 mg/cm²
- Effective Diameter: 0.36 in/9.1 mm
- Material: Mica
Electrical Specifications:
- Recommended Anode Resistor: 10 megohms
- Maximum Starting Voltage: 325 volts
- Recommended Operating Voltage: 500 volts
- Operating Voltage Range: 450-650 volts
- Maximum Plateau Slope: 6%/100 volts
- Minimum Dead Time: 90 μs
- Gamma Sensitivity Co60: 18 cps/mr/hr
- Tube Capacitance: 3 pF
- Weight: 8 grams
- Maximum Background Shielded 50 mm Pb + 3 mm AL 10 cpm
