Title :
Design of a 30 GHz damped detuned accelerating structure
Author :
Dehler, M. ; Jones, R.M. ; Kroll, N.M. ; Miller, R.H. ; Wilson, I. ; Wuensch, W.
Author_Institution :
PS Div., CERN, Geneva, Switzerland
Abstract :
Within the framework of the SLAC/CERN studies of 30 GHz linear colliders, an attempt has been made to scale as closely as possible the existing X-band NLC damped detuned accelerating structure to 30 GHz. A simple scaling was not possible because of mechanical and RF constraints. The 30 GHz design has 101 cells and a minimum aperture of 3.4 mm. In order to obtain acceptably small values for both the single-bunch transverse wakefield and the long-range multibunch wakefield a relatively large non-linear variation of the iris thickness was introduced in addition to the iris diameter variation. The resulting wakefield has a short-range value of 1290 V/pC/mm/m and a long range value below 10 V/pC/mm/m
Keywords :
electron accelerators; linear colliders; particle beam bunching; wakefield accelerators; 30 GHz; NLC; X-band; aperture; damped detuned accelerating structure; iris diameter; iris thickness; linear colliders; long-range multibunch wakefield; single-bunch transverse wakefield; wakefield; Acceleration; Apertures; Coupled mode analysis; Geometry; Iris; Linear accelerators; Linear particle accelerator; Optical coupling; Particle beams; Radio frequency;
Conference_Titel :
Particle Accelerator Conference, 1997. Proceedings of the 1997
Conference_Location :
Vancouver, BC
Print_ISBN :
0-7803-4376-X
DOI :
10.1109/PAC.1997.749740
