Varian Medical Systems - Clinac 21EX/23EX Community, Manuals and Specifications

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.

1 Reply -Genie123 Fri Aug 15 2025	Fri Aug 15 2025Getting into linear accelerator service My hospital is thinking of dropping full service contract on our 3 Varian linear accelerators and having one of imaging guys trained on them. Can you describe the work you perform, what's it like to work on them, how's your schedule when it comes to servicing them? and anything else I should know? None of us here are familiar with servicing them since they've been full service contract the whole time we had them, users called Varian themselves, so I would like to get some insight from some else's experience. Equipment: Varian Medical Systems - Clinac 21EX/23EX Reply
1 Reply -bush58 Mon Nov 30 2020	Mon Nov 30 2020Adjusting beam How do i find beam from varian cardrack on the console energy cardsReply
0 Replies -Daryl Anderson Mon Jan 18 2016	Mon Jan 18 2016Varian PM Manuals Set up a My Varian account at https://varian.force.com/CpHomePage and all documentation will be accessible Reply

FEATURES

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
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