Title :
An injector for a multi ion beam driver linac
Author :
Podlech, H. ; Gorelov, D. ; Kim, J.-W. ; Marti, E. ; York, R.
Author_Institution :
Nat. Supercond. Cyclotron Lab., East Lansing, MI, USA
Abstract :
An advanced facility for the production of exotic shortlived isotopes far from stability (RIA) could use as the driver a high power cw superconducting linac. Due to the wide range of particle velocities (β=0.019-0.81), different cavity types are required. This paper describes a possible design for the injector portion (up to β=0.1) of the driver linac. The proposed injector design consists of a multi-harmonic buncher, an RFQ (f=57.5 MHz), 4-gap fork resonators (f=57.5 MHz), and finally, 2-gap quarter wave resonators (f=86.25 MHz). The results of numerical simulations and a comparison different possible RFQ designs (4-vane, IH) are presented
Keywords :
accelerator cavities; ion accelerators; linear accelerators; particle beam bunching; particle beam dynamics; radioactive ion beams; superconducting cavity resonators; 2-gap quarter wave resonators; 4-gap fork resonators; 57.5 MHz; 86.25 MHz; RFQ; Rare Isotope Accelerator; cavity types; driver linac; exotic short-lived isotopes; high power cw superconducting linac; injector design; injector portion; multi-harmonic buncher; Acceleration; Blades; Cyclotrons; Electrodes; Impedance; Ion accelerators; Ion beams; Isotopes; Linear particle accelerator; Resonance;
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.2001.988302
