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Geiger Counter Tubes

How Geiger Mueller Tubes Work

GMT-01

GMT-01 GMT-01

Thin mica window detects alpha, beta, and gamma radiation. Operating range is 450-600 volts, the recommended voltage is 500 volts. Recommended anode resistor: 10 megaohms. Gas filling. Neon and halogen. Measures .36" (9.1 mm) wide, 1.6" (40 mm) long.

Detects alpha radiation through the thin mica front window.


Click here for detailed electrical and mechanical characteristics.


Sensitivity

  • Alpha above 3.0 MeV
  • Beta above 50 KeV
  • Gamma above 7 KeV

The geiger tube comes with a black boot to protect the thin mica end window. This boot needs to be removed to detect alpha particles. However, gamma and beta particles will pass through the boot and be detected.

The United States has declared that this product for restricted exporting to foreign countries. It may still be possible, but will require additional information prior to shipping.


GMT-01 - $74.95
Geiger-Muller Tube


GMT-02

GMT-02

Glass GM Tube detects beta and gamma radiation. Tube dimension are approximately .433" (11mm) diameter by 3.5" in length. Operating voltage is 400 volts.

Recommended anode resistor: 2.2 megaohms.

Not for detecting alpha radiation. Beta and Gamma Only. For Alpha radiation detection use the GMT-01.


Sensitivity

  • Beta and Gamma above 36 KeV


The United States has declared that this product for restricted exporting to foreign countries. It may still be possible, but will require additional information prior to shipping.

GMT-02 - $44.95 Glass Geiger-Muller Tube

GMT-02A - $59.95 Glass Geiger-Muller Tube


GMT-05

GMT-02

Small GM Tube detects beta and gamma radiation. Operating range is 450-650 volts, the recommended voltage is 500 volts. Recommended anode resistor: 3.3 megaohms. Gas filling. Neon and halogen. Measures 0.306 " (7.77 mm) wide, 1.10 " (27.9 mm) long.

Not for detecting alpha radiation. Beta and Gamma Only. For Alpha radiation detection use the GMT-01.GMT-02


Sensitivity


The United States has declared that this product for restricted exporting to foreign countries. It may still be possible, but will require additional information prior to shipping.

GMT-05 - $74.95
Geiger-Muller Tube


GMT-07

GMT-07

GM Pancake Tube detects alpha, beta and gamma radiation.. Starting Voltage 425 Volts, the recommended operating voltage range is 475 - 675 volts. Recommended anode resistor: 4.7 megaohms. Gas filling Neon and halogen. Measures 2.11" (53.6 mm) Outer Diameter, 3.00" (76.1 mm) long, by .61" (15.5 mm) deep. GMT-07

Gamma Sensitivity Co60
(cps/mr/hr) 60

GMT-07 Spec Sheet




The United States has declared this product for restricted exporting to foreign countries. It may still be possible, but will require additional information prior to shipping.

GMT-07 - $140.00
Pancake Tube