geiger muller counter

Geiger Muller counter is a

• gas filled detector

• scintillation detector

• liquid scintillation detector

• well counter

Geiger–Müller (GM) counter operates in the

• proportional region

• Geiger region

• saturation region

• recombination region

Avalanche of ionization occurs at

• low voltage

• medium voltage

• high voltage

• All of the above

A quenching can be applied in which the voltage applied to the GM tube is temporarily ________ the Geiger region

• reduced below

• increased above

• increased below

• reduced above

The common technique of quenching is to add a small quantity of a quenching gas to the counting gas.

• True

• False

Which one of the following is used as counting gas in Geiger muller counter?

• argon

• methane

• helium

• All of the above

GM probes are provided without a metal cover stops all β-particles

• True

• False

Geiger muller counter measures the intensity of radiactive radiation

• True

• False

In GM Tube, tungsten wire acts a cathode and glass envelope acts a anode

• True

• False

Geiger counters are able to measure high radiation rates

• True

• False