ISSN:
1089-7623
Source:
AIP Digital Archive
Topics:
Physics
,
Electrical Engineering, Measurement and Control Technology
Notes:
Laser ion sources have a great potential for the production of large numbers of highly charged heavy ions as required for fixed target experiments at the SPS and for the future LHC. However, the beam from a laser ion source (LIS) has certain characteristics, like the short pulse duration, the high total current, the large energy spread and the time varying beam divergence, which make its acceleration in the subsequent linear accelerators difficult. As the first accelerator for the injector chain will be a radio frequency quadrupole (RFQ), a proof of principle of acceleration of ions from the laser ion source was performed, using a 200 MHz four-vane RFQ. This structure, which was originally designed for the preacceleration of light ions for CERN's LINAC I, requires an injection energy of 5.6 keV/u and is therefore not well suited for ion beams from a LIS. In spite of this drawback, ion currents approaching the space-charge limit of the RFQ (i.e., several mA of Al9+–Al11+), could be accelerated. The results of these experiments and the special problems of the application of the LIS will be presented. © 1996 American Institute of Physics.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1063/1.1146765
