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The Geiger-Muller Tube - Papers

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The Geiger-Muller Tube
• The Geiger-Müller Tube’s
Ionizing Radiation sensor
detects low level beta and
gamma radiation.
• It is possible to detect
background radiation, as
well as low level radiation,
Emitted by radioactive
sources, like potasium
fertilizers or a gas lantern
mantle.
• The sensor can be used
as a counter to monitor
counts (or counts per
interval) from a radiation
source or to measure the
operating voltage applied
to the GM tube
The Geiger-Muller Tube
• It was named after Hans
Geiger, who invented the
device in 1908, and
Walther MГјller who
collaborated with Geiger
in developing it further in
1928.
• A Geiger-Müller tube
consists of a tube filled
with a low-pressure inert
gas such as helium, neon
or argon, and an organic
vapor or a halogen gas
and contains electrodes,
between which there is a
voltage of several
hundred volts, but no
current flowing.
• The walls of the tube are
either metal or the inside
coated with metal or
graphite to form the
cathode while the anode
is a wire passing up the
centre of the tube.
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