SRF2011 - List of Authors (Sobenin, N.P.)

Paper	Title	Page
MOPO020	Nine-cell Elliptical Cavity Development at TRIUMF	107
	V. Zvyagintsev, C.D. Beard, A. Grassellino, D. Kaltchev, P. Kolb, R.E. Laxdal, D. Longuevergne, B.S. Waraich TRIUMF, Canada's National Laboratory for Particle and Nuclear Physics, Vancouver, Canada M. Ahammed DAE/VECC, Calcutta, India R.O. Bolgov, N.P. Sobenin MEPhI, Moscow, Russia R. Edinger PAVAC, Richmond, B.C., Canada
	The superconducting e-Linac project at TRIUMF requires a new nine cell elliptical cavity at 1.3GHz of TESLA influenced design capable of providing a CW accelerating voltage of 10MV at 10mA of beam intensity. This corresponds to a challenging 100kW of beam loaded rf power and a Beam Break-up (BBU)threshold in multi-pass mode of Rd/Q*QL=10MOhms. For this purpose we use two opposed CPI 60kW cw rated couplers. Another challenge is to provide HOM damping for the possibility of multi-pass ERL operation by means of end cell optimization and higher order mode (HOM) dampers. Results of the cavity design work including developments toward a passive HOM damper will be discussed.

Paper

Title

Page

Nine-cell Elliptical Cavity Development at TRIUMF

107

V. Zvyagintsev, C.D. Beard, A. Grassellino, D. Kaltchev, P. Kolb, R.E. Laxdal, D. Longuevergne, B.S. Waraich
TRIUMF, Canada's National Laboratory for Particle and Nuclear Physics, Vancouver, Canada
M. Ahammed
DAE/VECC, Calcutta, India
R.O. Bolgov, N.P. Sobenin
MEPhI, Moscow, Russia
R. Edinger
PAVAC, Richmond, B.C., Canada

The superconducting e-Linac project at TRIUMF requires a new nine cell elliptical cavity at 1.3GHz of TESLA influenced design capable of providing a CW accelerating voltage of 10MV at 10mA of beam intensity. This corresponds to a challenging 100kW of beam loaded rf power and a Beam Break-up (BBU)threshold in multi-pass mode of Rd/Q*QL=10MOhms. For this purpose we use two opposed CPI 60kW cw rated couplers. Another challenge is to provide HOM damping for the possibility of multi-pass ERL operation by means of end cell optimization and higher order mode (HOM) dampers. Results of the cavity design work including developments toward a passive HOM damper will be discussed.