Title :
Development of a coupled CH structure for the GSI proton injector
Author :
Clemente, G. ; Podlech, H. ; Tiede, R. ; Ratzinger, U. ; Groening, L. ; Minaev, S.
Author_Institution :
J.W. Goethe Univ., Frankfurt
Abstract :
The FAIR facility, under development at GSI, needs a new dedicated proton injector for the production of intense secondary p macr beams. This injector will accelerate protons from 3 to 70 MeV at a current of 70 mA, and due to the high voltage gain and shunt impedance will be based on CH cavities powered by 6 2.5 MW, 325 MHz klystrons. An innovative coupling cell containing one drift tube of length Nbetalambda was developed to combine multicell drift tube modules of the CH-type (H 211 mode). In order to study this coupling mechanism a 1:2 scaled model of the second resonator of GSI proton injector was fabricated at IAP and it ready for testing. The according full scale prototype, a 3 meter long coupled resonator from 11.7 MeV to 24.1 MeV is under development and will be power tested with a 2.5 MW klystron at GSI early in 2009. This paper describes in detail the coupled structure together with a general overview of the R&D results achieved on the CH-DTL´s cavity.
Keywords :
accelerator cavities; cavity resonators; klystrons; linear accelerators; particle beam injection; proton accelerators; proton beams; CH cavities; FAIR facility; GSI linac proton injector; accelerate protons; coupled CH structure; coupled resonator; current 70 mA; electron volt energy 11.7 MeV to 24.1 MeV; electron volt energy 70 MeV; frequency 325 MHz; high voltage gain; klystrons; power 2.5 MW; proton beam; shunt impedance; size 3 m; Acceleration; Impedance; Klystrons; Particle beam injection; Particle beams; Production; Protons; Prototypes; Testing; Voltage;
Conference_Titel :
Particle Accelerator Conference, 2007. PAC. IEEE
Conference_Location :
Albuquerque, NM
Print_ISBN :
978-1-4244-0916-7
DOI :
10.1109/PAC.2007.4440778
