The transverse long-range wakefield in RDDS1 for the JLC/NLC X-band linacs

Author

Jones, R.M. ; Kroll, N.M. ; Miller, R.H. ; Higo, T. ; Li, Z. ; Ruth, R.D. ; Wang, J.W.

Author_Institution

Linear Accel. Center, Stanford Univ., CA, USA

Volume

5

fYear

1999

fDate

1999

Firstpage

3468

Abstract

The re-designed RDDS (Rounded Damped Detuned Structure) consists of 206 cells with a rounded cell profile formed by a number of circular arcs and a straight section. In the previous analyses of the present structure all cells have been assumed to be coupled to the manifold via slots cut into the cells and, a perfect match to the HOM (Higher Order Mode) couplers has been used. In the structure being fabricated, four cells on either end of the structure are decoupled to accommodate the HOM couplers and the HOM couplers have finite, frequency dependent, reflection coefficients. The wakefield is calculated incorporating both effects

Keywords

electron accelerators; linear colliders; wakefield accelerators; waveguide couplers; HOM couplers; JLC; NLC; RDDS1; Rounded Damped Detuned Structure; X-band linac; higher order mode couplers; reflection coefficients; transverse long-range wakefield; Ceramics; Couplers; Damping; Frequency dependence; Jitter; Large Hadron Collider; Linear accelerators; Optical reflection; Particle beams; USA Councils;

fLanguage

English

Publisher

ieee

Conference_Titel

Particle Accelerator Conference, 1999. Proceedings of the 1999

Conference_Location

New York, NY

Print_ISBN

0-7803-5573-3

Type

conf

DOI

10.1109/PAC.1999.792339

Filename

792339