Varian 21EX Linear Accelerator

Varian 21EX Linear Accelerator

Condition: Refurbished

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Complete high-performance treatment system for maximum efficiency

The Varian 21EX is a linear accelerator that gives clinicians the capability to perform advance IMRT treatments. It comes with a variety of energy options to treat a wide range of patients, and has a precise focal spot size for ideal portal imaging. The choice of dose rates, photon beam energies, and electron energies allow for the machine to be adjusted to meet clinical needs.


  • Selectable dose rate up to 600MU/min
  • Two selectable photon beam energies: 6MV and 18MV
  • Auto field sequencing
  • Choice of electron energies to meet patient needs
  • Electron applicators included
  • Exact couch for stable, reproducible, and accurate positioning
  • Modes for special clinical procedures
  • Enhanced and time-saving dynamic wedge
  • Tight isocenter alignment of the collimator, gantry, couch, and imagers
  • Instant beam-on with dynamic treatment control
  • Precise focal spot size for optimum portal imaging
  • Large amount of energy options to treat the widest range of patients
  • High dose rates across energy spectrum for greater throughput
  • Electronic portal imaging systems
  • Optional integrated Varian multileaf collimator

Core Components

  • Klystron
  • 270° bend magnet
  • Standing wave accelerator
  • Dynamic MLC for IMRT
  • Gantry
  • Couch
  • Collimator
  • Imagers


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