GR1 radiation detectors

A family of small and light CZT-based gamma-ray detector spectrometers

Gamma ray detector spectrometer for civil nuclear and radiation security use.

The Kromek GR1 family is a range of CZT-based high-performance gamma-ray spectrometers. They are completely self-contained, with built-in preamplifier, shaping amplifier, baseline restorer, pulse height digitizer, and HV supply. The digitized pulse heights of detected gamma-ray signals are sent to a PC via the USB. The unit is powered entirely from the USB bus, so no external power supply is needed.

Can be used across all gamma radiation detection needs either straight out of the box or built into your own devices. The GR gamma ray detectors can be mounted side by side in an array to give you coverage of a large area.

The GR1 range of gamma-ray detector spectrometers is just one of our radiation detections products you can see the complete radiation detection product range here.

To get an overview of all the different models please watch the video

The GR1 family range

Gamma-ray detector spectrometer models

The GR gamma-ray detector spectrometer family comes in a number of models.

  • The GR1 Plus (+) Gamma-ray detector spectrometer model feature a higher resolution than the base gamma-ray model.
  • The GR1 A-model feature different outputs for some who want to access more of the raw data coming out of the gamma-ray detector.
  • The GR05 model has a smaller CZT detector designed to operate in areas of high-flux (high-count).

GR1 Standard gamma-ray spectrometer

Perfect for most uses

  • Energy resolution: < 2.5% FWHM @ 662 KeV
  • USB output only
  • 1 cm cubed CZT detector

The plus model is available for those that need higher resolution:

  • Energy resolution: <2.0% FWHM @ 662 KeV

GR1-A gamma-ray spectrometer

For those that need extra outputs channels

  • Energy resolution: < 2.5% FWHM @ 662 keV
  • USB output
  • Three MCX connectors that provide energy and timing outputs and gate inputs
  • MultiSpect Analysis spectroscopy software included in the price
  • 1 cm cubed CZT detector

The plus model is available for those that need higher resolution:

  • Energy resolution: <2.0% FWHM @ 662 KeV

GR05 gamma-ray spectromter

For use in a high-flux environment

  • Energy resolution: < 2.5% FWHM @ 662 keV
  • Max dose rate approximately 10mSv/hr
  • USB output
  • Smaller 0.125 cm cubed CZT detector
  • For use in high-count (high-flux) environments

Quant GR1

For use for quantitative analysis

Quant GR1 is a gamma detector solution for mobile laboratory radionuclide analysis. It is designed for measuring the activity of radionuclides in filters, filter papers, beakers of samples. It comes with an optimised and integrated lead/copper shield that enables operation in both standard and raised backgrounds.

Find out more about the GR1 gamma-ray spectrometers

Download the GR1 Brochure

A PDF with the complete specifications for the GR1 family.

Speak to our experts about the GR1

Make sure the GR1 meets your needs and your budget.

Powerful software included with our GR1-A gamma-ray spectrometers

Both the GR1-A and the GR1-A Plus gamma-ray detector/spectrometer include MultiSpect Analysis our powerful spectroscopy software.

MultiSpect Analysis gamma spectroscopy software is specifically designed to work with Kromek radiation detectors, especially with CZT-based gamma-ray detectors, MultiSpect Analysis offers specialised gamma spectroscopy for use by researchers, nuclear workers. and CBRNE Homeland Security professionals.

MultiSpect Analysis gamma spectroscopy software peak analysis option screen