The LPCTrap facility: A novel transparent Paul trap for high-precision experiments
✍ Scribed by D. Rodríguez; A. Méry; G. Ban; J. Brégeault; G. Darius; D. Durand; X. Fléchard; M. Herbane; M. Labalme; E. Liénard; F. Mauger; Y. Merrer; O. Naviliat-Cuncic; J.C. Thomas; C. Vandamme
- Publisher
- Elsevier Science
- Year
- 2006
- Tongue
- English
- Weight
- 564 KB
- Volume
- 565
- Category
- Article
- ISSN
- 0168-9002
No coin nor oath required. For personal study only.
✦ Synopsis
A trap system has been built to perform high-precision b-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 4 He þ , 35 Cl þ and 36;40 Ar þ ions from the SPIRAL ECR source. An overall efficiency of 8:7ð8Þ Â 10 À4 is achieved for 4 He þ ions under specific conditions.