Radiothérapie Essonne

Technical platform

5 particle accelerators :

  • CYBERKNIFE (FIXED/IRIS/MLC; 45°), installed in 2019
  • TRUEBEAM STX (MLC HD 120 + OBI/EXACTRAC), installed in 2019
  • CLINAC 2100 (MLC 120 Portal + OBI) Varian, installed in 2007 and upgraded in 2015
  • CLINAC 2100 IX (MLC 120 + Portal + OBI) Varian, installed in 2013 and upgraded in 2016
  • UNIQUE Performance (MLC 120 + Portal) Varian, installed in 2012 and upgraded in 2015
  • SOMATOM AS 20 Siemens radiotherapyscanner
  • Restraint equipment for intra- and extra-cranial stereotactic radiotherapy treatment
  • Breathing-sensitive treatment solution


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Centre de Radiothérapie de Ris-Orangis

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From Paris/Porte d'Orléans, follow the N7 towards Evry. In Ris-Orangis, continue on the N7 then turn right into Rue du Clos.


RER D, Grigny-Centre or Ris-Orangis stop

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Centre de Radiothérapie de Ris-Orangis

14 Rue du Clos,
91130 Ris-Orangis

Our commitments

Sustainable development

Corporate Social Responsibility

Our CSR approach is transversal, operational and aims to be as close as possible to the field.
Organ Donation

Organ and Blood Donations

More than 14400 patients who need an organ transplant every year. The main obstacle to transplantation is the persistent lack of available organs.