Title :
The RFQ-injector for COSY-SCL
Author :
Kühnel, K.U. ; Schempp, A. ; Welsch, C.P. ; Schnase, A. ; Tölle, R.
Author_Institution :
Inst. fur Angewandte Phys., Goethe Univ., Frankfurt, Germany
Abstract :
For the new sc-linac for COSY at FZ Julich, a combination of an RFQ and a spiral loaded cavity will accelerate H-, D- beams up to 2.5 MeV/u for injection into the sc-linac. The RFQ is a 3.8 m long four-rod design which accelerates deuterons with an initial energy of 25 keV/u up to 2 MeV/u. Behind the RFQ a compact booster cavity of 300 mm length is mounted. This spiral loaded cavity accelerates the beam to a final energy of 2.5 MeV/u. It uses four accelerating gaps with an effective voltage of 1 MV. An alternative design has gaps with additional electrodes in an RF-quadrupole configuration to add a focussing field in this DTL structure. The status of the work on this new injector is presented.
Keywords :
accelerator RF systems; accelerator cavities; ion accelerators; linear accelerators; particle beam dynamics; particle beam injection; 1 MV; 3.8 m; 300 mm; COSY-SCL; D-beam; DTL structure; H-beam; RF-quadrupole configuration; RFQ injector; accelerating gap; beam dynamics; beam injection; compact booster cavity; effective voltage; electrodes; focussing field; long four-rod design; sc-linac; spiral loaded cavity; Acceleration; Apertures; Cooling; Electrodes; Linear particle accelerator; Particle beams; Spirals; Synchrotrons; Temperature; Voltage;
Conference_Titel :
Particle Accelerator Conference, 2003. PAC 2003. Proceedings of the
Print_ISBN :
0-7803-7738-9
DOI :
10.1109/PAC.2003.1289281
