A Comparison of the Maintenance and Operation of
                 the SLAC Linac and Damping Rings

                           Roslind Pennacchi
                 Accelerator Department Technical Manager,
                 Stanford Linear Accelerator Center (SLAC)

    WAO'98 Maintenance Poster Abstract

   The maintenance scheduling and mode of operation of the SLAC linac
   is compared to the damping rings.  The SLAC linac contains a large
   number of identical subsystems that are well understood and have a
   limited number of failure modes.  The damping rings, though
   physically smaller, contain a multitude of complex systems that
   present a challenge in scheduling effective maintenance during the
   limited access times.  The positron production system is also
   compared, where high radiation and contamination present a
   different set of maintenance problems.