Requirements for Linear Collider Instrumentation

Instrumentation performs a critical role in the operation of a linear collider. New acquisition and data processing techniques are required for feedback, tuning procedures and performance monitoring. For example, many collider systems are initially tuned using complex bootstrap procedures whose convergence rate will depend on the speed and performance of several instrumentation systems. Furthermore, mechanical and electrical tolerances are computed assuming the success of this process. In this paper we review the performance of specific instrumentation systems, wire scanners and beam position monitor based feedback, at the SLAC Linear Collider (SLC). Particular attention is paid to the application the lessons learned at SLC will have for future Linear Colliders.