Proton Therapy Center: practical information


The Proton Therapy Center at Institut Curie is located on the university campus at Orsay in the Essonne region. It administers an ultra-precise form of radiotherapy used to treat certain adult and childhood cancers.


Making an appointment

To make an appointment, contact the Center at +33 (0)1 69 29 87 00 between 8:00 am and 6:00 pm.

Once you have made the appointment, provided that proton therapy is appropriate for your tumor, the first session will take place within a maximum of 3 weeks for ophthalmological tumors and a maximum of 7 weeks for other tumors.

This period of time is used to study the patient’s file, decide on the treatment protocol during a multidisciplinary consultation meeting, then a technical meeting, and to establish dosimetry.


Getting to the Proton Therapy Center



Bâtiment 101

Campus universitaire d’Orsay

91898 Orsay Cedex, France

Tel: +33 (0)1 69 29 87 00 - Fax: +33 (0)1 69 07 55 00

Access map for the Proton Therapy Center


By car

Directions from Paris

  • Via the A6 south motorway

Take the Nantes, Bordeaux direction

Take the A10 motorway towards Chartres, Orléans

Take the Bures-Orsay exit

Follow RN 188 through the woods for 3 km

Exit towards Orsay, then drive for a short while on RN 118

(expressway towards Paris - Porte de St-Cloud)

Take the Orsay exit after 200 yards


  • Via the pont de Sèvres

Take RN 118 (or F18) towards Chartres, Orléans, Tours

Exit at Orsay (do not take the Centre Universitaire exit)



Enter: rue Georges Clémenceau

91400 Orsay


Via public transportation

  • RER line B / Stop: Orsay-Ville



A proton therapy treatment comprises a series of sessions of a few minutes each over the course of several days. You and your family may therefore need accommodation close to the Proton Therapy Center.

You are responsible for your accommodation. However, if you have a supplemental insurance plan, you can make a request to obtain reimbursement of accommodation costs. Contact your insurance company for details.


You can obtain the following from the reception desk at the Proton Therapy Center:

a list of possible accommodations close to the Proton Therapy Center, and a list of certified transportations methods.

If you reside in the European Union, form E112 gives coverage for transportation using transportation vouchers and travel receipts.

If you reside outside the European Union, your health insurance may pay you an allowance. Contact your insurance company for details. A cost estimate will be sent to your home.


For children and their parents:

La Maison des parents Irène-Joliot-Curie

Located near the Parisian hospital of Institut Curie (Paris, 5th arrondissement), it offers young children and their parents accommodation in the Paris area during treatment. This parent residence also offers families help and support with psychological and material difficulties.

13 rue Tournefort – 75005 Paris, France

Tel: +33 (0)1 47 07 21 50