®
Instruction Sheet
012-07905C
Geiger-Müller Counter
SN-7927A
Introduction
The SN-7927A Geiger-Müller Counter is a sensor with a
Tip-Ring-Sleeve type plug that can be connected to a PASCO
Interface. The Geiger-Müller Counter can sense alpha, beta,
and gamma radiation when used with PASCO Data Collection
Software. (NOTE: If your Interface has only PASPORT input
ports, use a Digital Adapter (PS-2159) to connect the sensor to
the interface.) Features include the following:
•
Versatile positioning options, either hand-held or
mounted on a rod stand.
•
Audible feedback (the device beeps when it registers a
count).
Equipment Included
Required
(*See the PASCO web site at www.pasco.com for information
about PASCO Interfaces and Data Collection Software.)
Recommended
(*See the PASCO web site at www.pasco.com for information
about radioactive sources, rods and bases, and clamps.)
Equipment
The Geiger-Müller Counter is equipped with a built-in Gei-
ger-Müller tube and integral power supply. The light emitting
diode (LED) Power Indicator lights when an operating voltage
is supplied to the sensor. The unit has a buzzer that emits an
audible signal for each pulse that is recorded. The sensor
includes a plastic cap that provides protection for the delicate
mica membrane. (The cap has a small venting hole to prevent
the creation of a vacuum or high pressure when the cap is
removed or replaced.)
Protective
Plastic Cap
Power
Indicator
(LED)
Item
Number
Geiger-Müller Counter
SN-7927A
Item*
PASCO Interface
PASCO Data Collection Software
Item*
Number
Radioactive Sources (set of 3)
SN-8110
Sensor Mounting Rod
ME-8965
