Gamma Irradiation Calibration Systems

Gemini specialize in the supply of Secondary Standard Dosimetry Systems. We have designed, manufactured and commissioned a significant number of Gamma, Neutron, and X-ray Calibration Systems. As well as numerous upgrades, to both mechanical and control systems.
Control Unit
The irradiator exposure unit is controlled via a Windows based GammaCal™ software system, its main features include:

  • Full control of X, Y, Z and rotational axes.
  • Full shutter lift control of Gamma irradiator main gamma shutter and americium shutter unit.
  • Full control of rotary gamma source cassette.
  • Certificate issued for each instrument calibrated by the Gamma Irradiator.
  • In-cell control of video equipment and screen grab display of camera in top corner of monitor.
  • Radiological status supplied on monitor screen; full control of warning lights, audible alarm and e-stops.

Video Systems
  • Multi-zoom camera lens for clear visual image of calibration instrument.
  • Pan/tilt unit attached to colour camera for accurate positioning.
  • Adjustable stand.
  • In-cell LCD mini monitor attached to trolley.
  • Controller unit situated in control room to fully control pan/tilt, zoom and focus of camera.
Gamma Irradiation Exposure unit
  • Lead shielded steel casing and heavy-duty steel pedestal.
  • Tungsten fail-safe Gamma Irradiator shutter unit.
  • Multi-ring Tungsten/lead collimator.
  • Multi-source Gamma cassette with motor driven spindle assembly.
  • Bolt on Americium Irradiator exposure unit.
  • Size of Gamma Irradiator exposure unit can be re-calculated to meet the source requirements of the customer.

Track & Trolley unit
  • AI Alloy construction using channel, angle and ground plate.
  • Precision linear rails and bearings used on X, Y and Z axes.
  • X axis driven via a linear actuator using a stepper motor/gearbox arrangement.
  • Y axis driven via a lead screw using a stepper motor.
  • Z axis raised and lowered via a screw jack using a stepper motor/gearbox arrangement.
  • The rotational axis is driven via a precision rotary table.
  • Energy chain used on X and Y axes for tidy/stress free transportation of cables.
  • Lengths, widths and heights can be modified to meet the requirements of the customer.

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Gemini offer a wide range of Products and services related to Gamma Calibration Systems. Gemini designed Gamma irradiator systems as well as Third party Gamma irradiator systems. Such as :
Gemini can be your solution for anything Gamma Calibration System related.
Gemini's newest Gamma Irradiation Calibration Rig, recently installed.