Varian Medical Systems - Clinac 21EX/23EX
by Varian Medical Systems

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The Clinac EX linear accelerators offer high performance with maximum efficiency.

Clinac EX linear accelerators are high-performance systems with:

  • An instant beam-on with dynamic treatment control
  • The greatest number of energy options to treat the widest range of patients
  • The most precise focal spot size for optimum portal imaging
  • The highest dose rates across the energy spectrum for greater throughput
  • These capabilities, combined with optional integrated Varian multileaf collimation and electronic portal imaging systems, enable clinicians to perform the most advanced computer-driven intensity-modulated radiation therapy (IMRT) treatments, as well as conventional therapy techniques.

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4 years ago
Adjusting beam
How do i find beam from varian cardrack on the console energy cardsReply


-Daryl Anderson
8 years ago
Varian PM Manuals

Set up a My Varian account at              and all documentation will be accessible



10 years ago

What is the SCD for Varian accelerator 23 EX?



  • Two selectable photon beam energies
  • Selectable dose rate up to 600MU/min
  • Choice of electron energies to meet clinical needs, with electron applicators included
  • Tight isocenter alignment of the gantry, couch, collimator, and imagers
  • Reproducible, stable, and accurate machine positioning
  • Exact couch for accurate reproducible patient positioning
  •  Modes for special clinical procedures, e.g. high dose total skin electron mode and total body X-ray mode
  • Enhanced dynamic wedge saves time and the need to reenter the treatment room
  • Auto field sequencing
  • Dynamic procedure modes for photon arcs
  • SmartConnect remote access technology provides access to Varian customer support expert assistance and online remote analysis

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