Résumé du preprint Irfu-08-406

Irfu-08-406
Micromegas tracker project for CLAS12
S. Aune, J. Ball, M. Combet, M. El Yakoubi, P. Konczykowski, C. Lahonde-Hamdoun, O. Meunier, S. Procureur, F. Sabatié
Micromegas detectors on bulk are used in a new design of the central tracker for the future CLAS12 spectrometer in Hall B at Jefferson Lab. Expected performances and mechanical designs are shown for this cylindrical detector. First tests in moderate magnetic field up to 1.5 T, using a laser source, are in good agreement with simulations