Title :
Funneling with the two-beam RFQ
Author :
Zimmermann, H. ; Bechtold, A. ; Schempp, A. ; Thibus, J.
Author_Institution :
Inst. fur Angewandte Phys., Johann Wolfgang Goethe Univ., Frankfurt, Germany
Abstract :
By ion beam funneling the beam current can be multiplied without changing the emittance, which is proposed for new high current accelerator facilities like HIDIF or ESS. There the required beam current can not be produced by a single pass rf-linac. The increase in brightness in such a driver linac is done by several funneling stages at low energies, in which two identically bunched ion beams are combined into a single beam with twice the frequency, current and brightness. Our funneling experiment is a setup of two ion sources, a two beam RFQ, a funnel deflector and beam diagnostic equipment to demonstrate funneling of ion beams as a model for the first funneling stage of a HIIF driver. The progress of the funneling experiment and results of simulations will be presented
Keywords :
accelerator RF systems; accelerator magnets; electromagnets; ion accelerators; ion beams; ion optics; ion sources; linear accelerators; particle beam bunching; particle beam diagnostics; particle beam focusing; ESS; HIDIF; HIIF driver; beam current; beam diagnostic equipment; bunched ion beams; driver linac; emittance; focusing; funnel deflector; high current accelerator facilities; ion beam funneling; ion sources; preacceleration; radiofrequency quadrupole; single pass rf-linear accelerator; space charge effects; transport capability; two-beam RFQ; Acceleration; Brightness; Electrodes; Frequency; Ion accelerators; Ion beams; Ion sources; Linear particle accelerator; Particle beam measurements; Particle beams;
Conference_Titel :
Particle Accelerator Conference, 2001. PAC 2001. Proceedings of the 2001
Conference_Location :
Chicago, IL
Print_ISBN :
0-7803-7191-7
DOI :
10.1109/PAC.2001.988297
