Monochromatization Option for NLC Collisions

In this n Point beam param achieved by squee introducing a hori beams). While the energy in the horiz higher energy part possible “energy b long as the energy Linear Collider Collaboration Tech Note tract This note documents a set of expressions used to explore the issue of whether or not it is reasonable to der a conventional positron source for a Tesla formatted beam. The critical issu Monochromatization Option for NLC Collisions Andrei Seryi, Tor Raubenheimer Stanford Linear Accelerator Center Stanford University 2575 Sand Hill Road Menlo Park, CA ote, we consider an option for NLC operation where the Interaction eters are adjusted in order to increase the energy resolution. This is zing the horizontal betatron function at the IP and simultaneously zontal dispersion (with a different sign for electron and positron total horizontal beam size remains constant, the beam is now spread in ontal plane so that lower energy particles collide preferentially with icles. The resulting luminosity spectrum becomes sharper and any ias” is reduced by more than a factor of two. This option is viable as jitter is smaller than the energy spread, as expected.