The SLAC NLC extraction and diagnostic line

A prototype extraction line for the Next Linear Collider is discussed that has several important functions that include optimizing luminosity, characterizing beam properties at the Interaction Point and transporting beams from the IP to a dump. Beam characterization includes measurements of current, position, profile, energy, polarization and low-order correlations on a bunch-to-bunch basis for feedback and stabilization. Prototype optical and diagnostic layouts are described that provide such functions. We also consider possibilities for e, /spl mu/ and /spl gamma/ secondary beam lines and dump experiments as well as energy recovery and local reuse of an assumed 10 MW in each 500 GeV beam.