Energy compensated Geiger-Müller tubes

Measure radiation dose based on an ambient or effective profile

Geiger-Müller tubes are electronic components which enable an instrument to count alpha, beta and gamma radiation events.   They do this by converting some of the energy of the radiation event into charge and amplifying that charge using gas avalanche mutiplication so that a usefully large pulse is delivered to the measurement circuit for each radiation event detected.

The sensitivity of a bare Geiger-Muller tube is strongly related to the energy of the gamma radiation.  Energy  compensation using high atomic number materials can modify this for either ambient or equivalent dose measurements.  Th eprinciple of a flatter response froma  compensated device is illustrated in this figure.

Energy compsentated versions of the following tubes are available:

> General Purpose alpha, beta and gamma
  • Our baseline gas volume and mixtures

> High dose gamma
  •  Smaller volume for lower sensitivity to prevent overload in high flux

> Low dose gamma
  •  Larger volume for higher sensitivity in low radiation environments

 Energy compensation figure
Read more

Need some answers? Ask our experts!

Contact us

What's new in Energy compensated Geiger-Müller tubes?

See all
A Legacy of Excellence
Press release

Jun 03rd 2025

A Legacy of Excellence

Photonis and Centronic unite under Exosens brand to strengthen leadership in Nuclear Instrumentation and Radiation Detection

Exosens - Centronic
Press release

Aug 01st 2024

Exosens - Centronic

Exosens announces the closing of the acquisition of UK-based Centronic, a specialist in radiation detectors and devices.

See all