Title :
Emittance and energy control in the NLC main linacs
Author :
Adolphsen, C. ; Bane, K.L.F. ; Kubo, K. ; Raubenheimer, T. ; Ruth, R.D. ; Thompson, K.A. ; Zimmermann, F.
Author_Institution :
Linear Accel. Center, Stanford Univ., CA, USA
Abstract :
We discuss tolerances and correction schemes needed to control single- and multi-bunch emittance in the NLC main linacs. Specifications and design of emittance diagnostic stations will be presented. Trajectory correction schemes appropriate to simultaneously controlling the emittance of a multibunch train and the emittance of individual bunches within the train will be discussed. We discuss control of bunch-to-bunch energy spread using a ramped RF pulse generated by phase-modulating the SLED-II input. Tolerances on ions, wake fields, quadrupole alignment, and accelerating structure alignment will be given
Keywords :
accelerator RF systems; accelerator control systems; beam handling techniques; colliding beam accelerators; electron accelerators; linear colliders; particle beam diagnostics; power control; NLC main linacs; SLED-II input; accelerating structure alignment; bunch-to-bunch energy spread; diagnostic stations; emittance control; energy control; multibunch emittance; quadrupole alignment; ramped RF pulse; single-bunch emittance; tolerances; trajectory correction schemes; wake fields; Acceleration; Electron emission; Lattices; Linear accelerators; Magnets; Particle beams; Positrons; Pulse generation; Radio frequency; Structural beams;
Conference_Titel :
Particle Accelerator Conference, 1995., Proceedings of the 1995
Conference_Location :
Dallas, TX
Print_ISBN :
0-7803-2934-1
DOI :
10.1109/PAC.1995.505760
