GANIL-SPIRAL 2 facilities
  • Accelerators
  • Available beams
  • Experimental areas
    • ARIBE
    • D1
    • D2
    • D3-D6 / LISE
    • D5
    • DESIR
    • G1 / VAMOS
    • G2
    • G3
    • G4
    • IRRSUD
    • LIRAT
    • NFS – Neutrons for Science
    • S3 – Super Separator Spectrometer
  • Instrumentation
    • AGATA
    • FAZIA
    • INDRA
    • LPCTrap
    • MUST2
    • NEDA
    • PARIS
    • REGLIS3
    • S3 Low Energy Branch
    • SIRIUS



The DESIR collaboration proposes the construction of a low-energy beam facility at GANIL-SPIRAL2 to study the properties of exotic nuclei in unexplored regions of the nuclide chart. Beam preparation devices including gas catchers, radiofrequency quadrupoles, high resolution separators and ion traps are under construction in order to provide high quality beams to the users. The DESIR Physics program addresses by means of complementary experimental techniques most of the current interrogations regarding the structure of exotic nuclei, the fundamental interactions driving their properties, as well as their formation in the universe.

Physics case

The DESIR physics case has been outlined in detail in the Letter of Intent submitted to the SPIRAL2 Scientific Advisory Committee in 2006. A few selected cases from this Letter of Intent are presented here which are meant to give a flavor of the physics opportunities with DESIR.
In addition, a short and long version of the Letter of Intent can be downloaded by consulting this page :


Experimental equipment

Low-energy beams from the two SPIRAL2 productions caves, from S3 and from SPIRAL1 will be cooled and bunch in an RFQ to provide good optical and timing properties. They will be delivered to the different experimental setups implemented in the DESIR Hall via a high-resolution mass seperator. They consists in trapping devices devoted to mass measurements (MLLTrap), to trap assisted spectroscopy and to fundamental research studies (KVI setup), as well as in laser a spectroscopy setup (LUMIERE) and in a decay-spectroscopy setup (BESTIOL).

A technical description of the whole DESIR facility is given in the technical design report.


Organization of the DESIR collaboration

The DESIR collaboration is composed of those colleagues who have signed the DESIR Technical Design Report. The different countries are listed below (more information at ).

Belgium: University of Brussels; University of Leuven

Bulgaria: INRNE, Sofia

France: CEA ; LNHB ; IRFU/SPhN ; CEN Bordeaux-Gradignan ; CSNSM, Orsay ; GANIL, Caen ; IPHC, Strasbourg ; IPN, Orsay ; LPC, Caen ; LPSC, Grenoble ; ILL, Grenoble

Finland: University of Jyväskylä

Germany: LMU München ; GSI, Darmstadt ; University of Greifswald ; Max-Planck-Institute for Nuclear Physics, Heidelberg

Hungary: INR Debrecen

India: BARC, Mumbai

Italy: INFN, Legnaro

Netherlands: KVI, Groningen

Romania: NIPNE, Bucharest

Russia: PNPI St. Petersburg

Serbia: Vinca Institute of Nuclear Sciences, Belgrade

Spain: CIEMAT, Madrid ; IEM, CSIC, Madrid ; University of Huelva ; University Complutense of Madrid ; IFIC, CSIC, Valencia

Switzerland: ISOLDE-CERN

United Kingdom: CCLRC, Daresbury ; University of Edinburgh ; University of Manchester ; University of Surrey



Scientific coordinator (GANIL): Jean-Charles Thomas –