Accueil du site > Contrats de recherche > Investissements d’Avenir > DESIR : Désintégration, excitation et stockage d’ions radioactifs
Programme spécifique: EQUIPEX Site de DESIR |
Début: 01/07/2012, Fin: 31/12/2022 |
Responsable scientifique IPN: Luc PERROT |
Coordinateur: Jean-Charles THOMAS, GANIL |
Description:
Nuclear physics as well as fundamental weak-interaction physics and astrophysics questions will be addressed using laser spectroscopy techniques, decay spectroscopy of radioactive species, mass spectrometry and other trap-assisted measurements. Experience at other ISOL facilities evidences that ion beams with a high degree of purity are needed to push experiments towards the limits of stability. The most efficient and universal way of achieving isotopic pure beams is a high-resolution mass separator in combination with RFQ cooler and buncher. Therefore, the main elements of DESIR are an RFQ cooler and buncher called SHIRAC (SPIRAL2 High-Intensity Radiofrequency Cooler) aiming at cooling and bunching micro-ampere beams (q = 1+, E = 10 to 60 kV) with an output beam emittance of about 1/ The DESIR facility will receive beams
from the two SPIRAL2 production caves (the red and yellow caves) from
fission reactions of 238U nuclei, fusion-evaporation and
transfer reaction as well as from deep-inelastic collisions. An
additional production scheme is due to reaction products from the S3
separator spectrometer, which uses also fusion-evaporation, transfer
and deep-inelastic reaction, but allows also the production of beams of
refractory elements and very short-lived isotopes. Finally beams from
SPIRAL1 will also be available in DESIR. Details about the DESIR facility, the physics case of DESIR, and a preliminary budget can be found in the Letter of Intent submitted to the SPIRAL2 Scientific Advisory Committee (SAC). A detailed technical description of the DESIR installation is given in a Technical Design Report submitted to the SPIRAL SAC on December 19, 2008. |
Institut de Physique Nucléaire Orsay - 15 rue Georges CLEMENCEAU - 91406 ORSAY (FRANCE) |
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