GEIGER-MÜLLER DETECTOR
Radiation Detectors
GEIGER-MÜLLER DETECTOR
The Geiger-Müller detector is a radiation detector which operates in the G-M
region.
EO 2.6
DESCRIBE the operation of a Geiger-Müller (G-M)
detector to include:
a.
Radiation detection
b.
Quenching
c.
Positive ion sheath
The Geiger-Müller or G-M detector is a radiation detector that operates in Region V, or G-M
region, as shown on Figure 23. G-M detectors produce larger pulses than other types of
detectors. However, discrimination is not possible, since the pulse height is independent of the
type of radiation. Counting systems that use G-M detectors are not as complex as those using
ion chambers or proportional counters.
Figure 23 Gas Ionization Curve
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