Title :
A triple gap resonator design for the separated function DTL at TRIUMF
Author :
Bylinsky, Y. ; Kukhtiev, V. ; Ostroumov, P.N. ; Paramonov, V. ; Laxdal, R.E.
Author_Institution :
INR RAS, Moscow, Russia
Abstract :
A separated function, variable energy, drift tube linac (DTL) operating in CW mode is being built for the ISAC radioactive beam facility at TRIUMF. Longitudinal focusing is achieved by positioning 105 MHz rebunching cavities immediately upstream of the second, third and fourth IH accelerating tanks. The three devices must operate at a relatively low β (2.3%, 2.7%, 3.3%) and deliver peak effective voltages in CW mode of 0.19, 0.26 and 0.32 MV respectively. In addition the geometry must allow a large voltage dynamic range for the variable energy operation. A three gap cavity has been chosen as a trade-off between velocity acceptance and peak effective voltage. Several cavity geometries have been considered in order to identify the optimal geometry for this application. We present here a summary of the available buncher designs
Keywords :
accelerator cavities; ion accelerators; linear accelerators; particle beam bunching; particle beam focusing; radioactive ion beams; 0.19 MV; 0.26 MV; 0.32 MV; 105 MHz; CW mode; ISAC radioactive ion beam facility; TRIUMF; accelerating tanks; buncher designs; drift tube linac; longitudinal focusing; rebunching cavities; separated function DTL; three gap cavity; triple gap resonator design; variable energy; Acceleration; Apertures; Dynamic range; Frequency; Geometry; Ion beams; Linear particle accelerator; Particle beams; Structural beams; Voltage;
Conference_Titel :
Particle Accelerator Conference, 1997. Proceedings of the 1997
Conference_Location :
Vancouver, BC
Print_ISBN :
0-7803-4376-X
DOI :
10.1109/PAC.1997.749953
