Home > Radiological/Nuclear Detection > Technology > Geiger-Muller Detectors

Geiger-Muller Detectors (GM) tubes typically identify gamma and beta radiation. Some GM tubes also detect alpha radiation sources. The GM tube is filled with a low-pressure inert gas (He or Ar). It has two electrodes, the walls of the tube form the cathode, and the anode is a wire in the center of the tube. The voltage across the two electrodes creates a strong electric field. When radiation strikes the tube, some of the gas molecules are ionized. The positive ions are accelerated towards the cathode and the electrons towards the anode. Close to the anode in the "avalanche region" the electrons gain sufficient energy to ionize additional gas molecules and create a large number of electron avalanches which spread along the anode and effectively multiply the effect. The GM tube counts the number of gamma rays or beta particles entering the detector per second. They do not provide identification information unless coupled with alternate detectors.
Manufacturer
Arrow-Tech, Inc. (8)
Automess (4)
Bruker Corporation (2)
Canberra Industries, Inc. (11)
Defentect (1)
D-tect Systems (1)
FLIR Systems, Inc. (3)
Haztech Systems, Inc. (1)
Industrial Test Systems, Inc. (1)
Ludlum Measurements, Inc. (1)
Mirion Technologies (7)
Overhoff Technology Corporation (5)
RADIATION ALERT (5)
Technical Associates (2)
Thermo Fisher Scientific, Inc. (1)
Show More
Transportability
Pocket Size (12)
Handheld (29)
Person-Portable (8)
Benchtop/Fixed (4)
Availability
Commercially Available (49)
Discontinued (3)
Other (1)
Unit Cost
$100 - $500 (3)
$500 - $1,000 (3)
$1,000 - $5,000 (3)
$20,000 - $50,000 (1)
N/A (43)
Sample Introduction
Solid (3)
Vapor/Gas (7)
Other (43)
Sensitivity / Detection Limit
% (2)
ppm (1)
cpm (4)
cps (7)
µR (3)
mR (5)
µSv (8)
Sv (1)
Ci (8)
Other (3)
Grid ViewList View | Compare Products | Products per page:416100All
6150AD Series Dose Ratemeter

6150AD Series Dose Ratemeter

Automess

The 6150AD is a PTB approved dose rate meter built-in GM counting tube serves to measure photon radi...

Compare Compare Now  
Air Monitor

Air Monitor

Technical Associates

Model AIR-TBM is used to monitor alpha, beta and gamma from radioactive chemicals in the air be they...

Compare Compare Now  
ALADOX Digital Dosimeters

ALADOX Digital Dosimeters

Automess

The ALADOX is a gamma and X-ray Detection system for personal monitoring. Standard model includes t...

Compare Compare Now  
Alpha/Beta/Gamma Probes

Alpha/Beta/Gamma Probes

Canberra Industries, Inc.

Hand-held probes that can attach to an instrument or a PC

Compare Compare Now  
AMP - 100

AMP - 100

Arrow-Tech, Inc.

The AMP-100 provides real-time remote radiological monitoring. Local readout of hand-held meter allo...

Compare Compare Now  
AMP - 200

AMP - 200

Arrow-Tech, Inc.

The AMP-200 provides real-time remote radiological monitoring. Local readout of hand-held meter allo...

Compare Compare Now  
AMP - 50

AMP - 50

Arrow-Tech, Inc.

The AMP-50 provides real-time remote radiological monitoring. Local readout of hand-held meter allow...

Compare Compare Now  
AMP Radiation Monitoring System Series

AMP Radiation Monitoring System Series

Mirion Technologies

Offered in a wide range of measurement ranges, the AMP series of area radiation monitors provide rea...

Compare Compare Now  
Avior 2000 Digital Desktop Dose Rate and Survey Meter

Avior 2000 Digital Desktop Dose Rate and Survey Meter

Canberra Industries, Inc.

Desktop dose rate and survey meter that can be used with multiple probes

Compare Compare Now  
Avior 4000 Digital Desktop Dose Rate and Survey Meter

Avior 4000 Digital Desktop Dose Rate and Survey Meter

Canberra Industries, Inc.

Desktop dose rate and survey meter that can be used with multiple probes

Compare Compare Now  
CDV700

CDV700

RADIATION ALERT

The CDV700 is a Geiger-Muller survey meter for gamma and beta detection.

Compare Compare Now  
CM 250SP Alpha Hand Contamination Monitor

CM 250SP Alpha Hand Contamination Monitor

Canberra Industries, Inc.

Person portable hand contamination check for individuals working in controlled or contaminated areas

Compare Compare Now  
Colibri

Colibri

Canberra Industries, Inc.

The Colibri is a hand-held dose rate and survey meter that can be used with multiple probes.

Compare Compare Now  
Digilert200 Survey Meter

Digilert200 Survey Meter

Arrow-Tech, Inc.

The Digilert 200 measures alpha, beta, gamma, and x-rays. Its digital display shows readings in your...

Compare Compare Now  
DMC Series

DMC Series

Mirion Technologies

The DMC 2000GN takes advantage of a unique licensed neutron detection technology based on a large si...

Compare Compare Now  
Environmental Gamma Monitor

Environmental Gamma Monitor

Overhoff Technology Corporation

Highly sensitive gamma monitor for remote or unattended operations

Compare Compare Now