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  • Home
  • About
    • Global Partners
  • Services
    • Design & Development
    • Manufacture & Assembly
    • Electronics & Control Systems
    • Installation & Commissioning
    • Servicing & Maintenance
    • Irradiator System Health Check
  • Products
    • Radiation Metrology >
      • Gamma Calibration Systems
      • X-Ray Calibration Systems
      • Neutron Calibration Systems
      • Calibration Benches
      • Legacy Irradiator
      • Accessories >
        • Source Storage Vessels
        • Automatic Collimator Plug
    • Dosimetry >
      • EPD & TLD Calibration Systems
      • Robotic EPD Calibration System
      • EPD & TLD Handling Systems
    • Radiochemistry >
      • ASC-2
      • ASC-3
    • Research >
      • Sample Irradiators
      • Foraccle
      • Other Products
  • News
  • Contact us
  • Downloads

Neutron 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 Exposure unit is controlled via a Windows based software system, its main features include:

  • Full control of X, Y, Z and rotational axes.
  • Full control of rotary neutron source cassette.
  • Certificate issued for each instrument calibrated.
  • 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.

Neutron Exposure unit

The function of the unit is to calibrate instruments placed onto the trolley instrument table using the radioactive sources installed in the heavily shielded exposure unit. The machine can be driven in two axes (x & z). There is a source cassette located at the bottom of the shielding for automatically selecting the different sizes of source for the source exposure mechanism. The source exposure mechanism is fail-safe and will automatically drop and return to a safe position if the power is lost or one of the safety interlocks is activated.

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.

    Make a Neutron Calibration Rig enquiry:

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Gemini above ground Neutron Calibration System
Gemini's newest Neutron Calibration Rig, recently installed.
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