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Varian

Clinac 2100C

Varian Clinac 2100CProduced 1987–2007Varian Clinac 2100C family
Research Quality: 30% complete
Clinac 2100C — oncologysystems.com
Fig. 01Clinac 2100Concologysystems.com[1]

Produced

1987–2007

Node / era

Varian Clinac 2100C

What is it?

The Varian Clinac 2100C is a dual-energy medical linear accelerator manufactured from 1987 to 2007, supporting both photon and electron beam therapy treatments.

What do the numbers mean?

Dimensions & facilities1

Multi-Leaf Collimator (MLC)
80 (Field size 40x40cm); 120 MLC (Field size 40x40cm, Central 20cm of field - 5mm leaf width, Outer 20cm of field - 10mm leaf width)[1]
Accurate?

Configuration & options8

Power Source
Klystron[1]
Accurate?
Electron Energies
Yes[1]
Accurate?
Max Dose Rate Electrons
1000 MU/min[1]
Accurate?
Portal Imager (EPID)
LC250, aS500, aS1000 (optional)[1]
Accurate?
Cone-Beam CT
Only with OBI[1]
Accurate?
VMAT
Only with OBI[1]
Accurate?
Stereotactic Radiosurgery
Optional Cones or mMLC[1]
Accurate?
Treatment Couch
Exact ETR, Exact (optional)[1]
Accurate?

Vintage & configurations

  1. 1987Production start[1]

    Manufacturing of the Clinac 2100C began in 1987.

  2. 2007Production end[1]

    Manufacturing of the Clinac 2100C ended in 2007.

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Where are the manuals?

Generated from public-source data on file. Enter your email to access — nothing is published; details are routed privately.

Not publicly documented

Field notes

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Frequently asked questions

What years was the Clinac 2100C manufactured?

The Clinac 2100C was manufactured from 1987 to 2007.[1]

What photon energies does the Clinac 2100C support?

The Clinac 2100C supports a photon beam of 6 MV and one of the higher energies: 10, 15, 18, or 25 MV.[1]

Does the Clinac 2100C support intensity-modulated radiation therapy (IMRT)?

Yes, the Clinac 2100C supports IMRT delivery.[1]

What multi-leaf collimator options are available for the Clinac 2100C?

The Clinac 2100C can be equipped with either an 80-leaf multi-leaf collimator or a 120-leaf multi-leaf collimator, both with a maximum field size of 40 cm × 40 cm. The 120-leaf MLC has 5 mm leaf width in the central 20 cm and 10 mm leaf width in the outer 20 cm.[1]

Not publicly documented

The following facts about the Clinac 2100C are absent from this record as of this revision. First-hand knowledge or a citation closes a gap; every submission is reviewed before publication.

  • No publicly documented variants, configuration options, or revision breakpoints of the Clinac 2100C are on record.

    Answerable by: an OEM product catalog or an engineer who ordered or specified the tool

  • The control-system platform and OS era of the Clinac 2100C are not on record.

    Answerable by: an engineer who operated it or OEM installation records

  • No publicly documented failure modes or field errata for the Clinac 2100C are on record.

    Answerable by: a field service engineer, process engineer, or maintenance technician

  • No publicly documented compatible parts, consumables, or accessories for the Clinac 2100C are on record.

    Answerable by: an OEM parts catalog or a service engineer

  • No publicly hosted manuals, SOPs, or datasheets for the Clinac 2100C are on record.

    Answerable by: university cleanroom staff or an OEM application specialist

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Sources & citations

Sources (1)Every fact above is drawn from these public sources
  1. [1]oncologysystems.com — oncologysystems.comoncologysystems.com
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Last updated Sep 22, 2026.

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