Presentation of the GIP ARRONAX

Arronax is an acronym for Accelerator for Research in Radiochemistry and Oncology in Nantes-Atlantique. This concerns a particle accelerator (cyclotron). ARRONAX is also an allusion to Professor Aronnax, a character in the novel entitled “20,000 leagues under the sea” by Jules Verne (born in Nantes in 1828).

Arronax is a public interest group (GIP). A public interest group is a grouping of several public and private-sector members formed by convention and approved by the State. The GIP Arronax’s members are the State and the Pays de la Loire Regional Council, leading national research organizations, higher education and research institutions and hospitals. Its members convene a general meeting that elects its President and Vice-President.

Drone view of the ARRONAX cyclotron


The GIP Arronax is formed, by convention, for a renewable period of 25 years. It is primarily responsible for operating the Arronax cyclotron, which is a leading international research and development platform. Management responsibility lies with the director of the GIP, who signs research contracts and service contracts with national or international, public or industrial partners.

Arronax is thus a public research institute with private administration of accounts. In a manner of speaking, it is a mixed economy system enabling it to cooperate on equal terms with public research partners while acting like a company in its dealings with industrial clients (SIRET (business registration) number: 13000411200012, DUNS number: 295659028).

The staff working in the GIP include researchers, engineers and technicians placed on secondment by its members, and GIP employees. Advisers and several members of partner laboratories collaborate on a regular basis with the GIP’s activities. The GIP Arronax has 62 staff.