Author/Authors :
Rodrيguez، نويسنده , , D. and Méry، نويسنده , , A. I. Ban، نويسنده , , G. and Brégeault، نويسنده , , J. and Darius، نويسنده , , G. and Durand، نويسنده , , D. and Fléchard، نويسنده , , X. and Herbane، نويسنده , , M. and Labalme، نويسنده , , M. and Liénard، نويسنده , , E. and Mauger، نويسنده , , F. and Merrer، نويسنده , , Y. and Naviliat-Cuncic، نويسنده , , O. and Thomas، نويسنده , , J.C. and Vandamme، نويسنده , , C.، نويسنده ,
Abstract :
A trap system has been built to perform high-precision β -decay experiments. The system is coupled to the low-energy beam line of the SPIRAL source at GANIL. The continuous ion beam from SPIRAL with energies between 10 and 20 keV is slowed down by means of a buffer-gas-filled RFQ trap and ejected thereafter as short ion bunches into a novel transparent Paul trap. Two pulsed cavities located downstream from the RFQ reduce the energy of the ion bunch down to about a hundred eV for an efficient capture in the Paul trap. We describe here the complete system along with the first results obtained with stable He + 4 , Cl + 35 and Ar + 36 , 40 ions from the SPIRAL ECR source. An overall efficiency of 8.7 ( 8 ) × 10 - 4 is achieved for 4 He + ions under specific conditions.
