Title :
RF systems of the TRIUMF ISAC facility
Author :
Poirier, R.L. ; Bricault, P. ; Fong, K. ; Mitra, A.K. ; Uzat, H.W. ; Bylinsky, Y.V.
Author_Institution :
TRIUMF, Vancouver, BC, Canada
Abstract :
Five RF systems, each operating in CW mode, have so far been specified for the ISAC accelerator system; a pre-buncher, an RFQ, a MEBT re-buncher, five DTL cavities and three DTL bunchers. The pre-buncher was designed and built to operate at a frequency of 11.66 MHz plus three harmonics. So far it has operated successfully at full nominal voltage with fundamental plus the addition of two harmonics. Both the 8-meter long, 4-rod, split-ring type RFQ and the spiral two gap MEBT re-buncher were designed to operate at 35 MHz. The initial 2.8 meters of the RFQ (7 out of 19 rings) were installed in the 8 m long tank and have been successfully operated at full power with beam. Dark currents associated with field emission initially accounted for 40% extra power consumption at full voltage but could be eliminated with high power pulse conditioning
Keywords :
accelerator RF systems; accelerator cavities; ion accelerators; linear accelerators; particle beam bunching; radioactive ion beams; 11.66 MHz; 2.8 m; 35 MHz; 8 m; CW mode; DTL bunchers; DTL cavities; MEBT rebuncher; RF systems; RFQ; TRIUMF ISAC facility; dark currents; linear accelerator; prebuncher; radioactive ion beams; split-ring type; Acceleration; Broadband amplifiers; Electrodes; Ion accelerators; Ion beams; Particle beams; Power system reliability; Radio frequency; Spirals; Testing;
Conference_Titel :
Particle Accelerator Conference, 1999. Proceedings of the 1999
Conference_Location :
New York, NY
Print_ISBN :
0-7803-5573-3
DOI :
10.1109/PAC.1999.795729
