Title :
Experimental study of a 322 MHz v/c=0.28 niobium spoke cavity
Author :
Grimm, T.L. ; Bierwagen, J. ; Bricker, S. ; Compton, C.C. ; Hartung, W. ; Marti, F. ; York, R.C.
Author_Institution :
Nat. Superconducting Cyclotron Laboratory, Michigan State Univ., East Lansing, MI, USA
Abstract :
The Rare Isotope Accelerator (RIA) will accelerate heavy ions to >400 MeV/u using an array of superconducting cavities. A proposed linac design based on harmonics of 80.5 MHz will require six cavity types to cover the entire velocity range: three quarter wave resonators, one spoke cavity (half wave resonator), and two 6-cell elliptical cavities. A prototype 322 MHz niobium spoke with optimum velocity of 0.28 c has been fabricated. Each spoke would generate over 1 MV at 4 K for acceleration from v/c=0.20 to 0.40. Details of the design and experimental study are presented.
Keywords :
accelerator cavities; beam handling techniques; ion accelerators; linear accelerators; particle beam dynamics; superconducting cavity resonators; 322 MHz; 4 K; 6-cell elliptical cavities; 80.5 MHz; Rare Isotope Accelerator; heavy ion linac design; niobium spoke cavity; optimum velocity; quarter wave resonators; superconducting cavities; Acceleration; Ion accelerators; Isotopes; Linear particle accelerator; Niobium; Optical coupling; Prototypes; Superconducting devices; Voltage; Welding;
Conference_Titel :
Particle Accelerator Conference, 2003. PAC 2003. Proceedings of the
Print_ISBN :
0-7803-7738-9
DOI :
10.1109/PAC.2003.1289703
