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  4. Therapy Facilities
  5. Gantry 3

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Center for Proton Therapy (CPT)

  • What is proton therapy?
    • The spot-scanning technique
    • The proton accelerator COMET
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  • Sito web italiano sulla protonterapia
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Gantry 3

Gantry 3 Facility
Gantry 3 Facility
After four years of planning, construction and commissioning a new treatment unit, Gantry 3 has come into operation in July 2018. The construction of Gantry 3 was done with a scientific collaboration with Varian Medical Systems and integrated in our existing treatment and accelerator facility. Technically, Gantry 3 will offer the same treatment capabilities as Gantry 2 and can even treat irradiation fields of 30x40 cm2.

Gantry 3 can be rotated 180 degrees to the right or to the left. Nine primary magnets, which surround the vacuum pipe, steer the protons to the patient as a beam with one-millimetre precision. With a total weight of 270 tons and a diameter of 10.5 metres, Gantry 3 is the largest machine installed to date at CPT. Gantry 3 also utilises the active scanning technique to deflect the proton beam with two orthogonal magnets to be able to cover any tumour shape.

An on-board integrated imaging system is employed to verify the placement of the patient directly in the treatment position. The gantry’s ability to deliver large irradiation fields, fast energy changes and high dose rates allows the radiation duration per patient to be kept short. It is envisioned to treat moving tumours at this irradiation facility using the ‘gating’ principle in the future. The irradiation facility Gantry 3 was financed with money from the lottery of the canton of Zurich as well as PSI's own funds.

The clinical collaboration of this treatment unit will be done with the Radiation Oncology Department of the University Hospital of Zürich.

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Paul Scherrer Institute
Center for Proton Therapy
5232 Villigen PSI West, Switzerland
Reception PSI West

For any questions please refer to our patient's office:
Tel: +41 56 310 35 24
Fax: +41 56 310 35 15
E-mail: protonentherapie@psi.ch

Head and Chairman:
Prof. Dr. med.
Damien Charles Weber

GFA

Division Large Research Facilities

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How to get to the Paul Scherrer Institute (description and map)


Open positions

Current openings at the Center for Proton Therapy.

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Paul Scherrer Institut

Forschungsstrasse 111
5232 Villigen PSI
Switzerland

Telephone: +41 56 310 21 11
Telefax: +41 56 310 21 99

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