A Discussion of the NLC Linac Alignment and Tuning Procedures

In this paper, we give a short introduction to the NLC linac alignment and tuning procedures. A more detailed description of the techniques, as well as the simulations verifying the techniques, can be found in the NLC Zeroth Order Design Report. In the next sections, we will describe the basic layout of the linac, the pre-alignment strategy, and the beam-based alignment techniques. Then, we will discuss the stability issues and possible methods of additional emittance control. Finally, it should be noted that the linac model described in this note is probably incorrect with the new (May 1997) parameters where the accelerator structures are naturally grouped in set of three and not pairs. However, the correction procedures described are still those thought to be utilized.