3B Scientific Geiger-Muller Tube T User Manual
3b scientific® physics
3B SCIENTIFIC® PHYSICS
A TELTRON Product from UK3B Scientific Ltd. ▪ Suite 1 Formal House, Oldmixon Crescent ▪ Weston-super-Mare
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Technical amendments are possible
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Geiger-Muller Tube 1000661
Instruction sheet
10/12 ALF
1 Window
2 Holder
3 Patch
cord
4 BNC
connector
1. Safety instructions
The window is fragile and can easily be dam-
aged. This will make the end-window counter
inoperable.
•
Do not touch the window.
The G-M tube can be damaged by self-
maintained gas discharges, if operated at too
high a voltage.
•
Do not exceed the operating voltage of 500
V in a sustained manner.
2. Description
The Geiger-Muller tube is a self-quenching
Halogen -trigger counter tube for registering
and X radiation.
The G-M tube comprises a counter tube with a
very thin mica window and a removeable holder
for mounting on the swivel arm of the X-ray ap-
paratus (1000657 or 1000660) and a plated
spring clip for alternative mounting. A BNC-
terminated coaxial cable connects the output of
the G-M tube to a counter.
2. Technical data
Dose rate range:
10
-3
to 10
2
mGy/h
Mass of the active
surface (mica):
2.0 to 3.0 mg/cm²
Operating voltage:
500 V
Output connector:
BNC
Cable length:
1 m
Dimensions:
57 x 22 mm diam.