Title :
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
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;
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.1999.792339
