Electrostatic Separators for Muon Colliders

Summary of studies is presented towards minimization of beam loss in the critical locations at the Fermilab Tevatron to reduce background rates in the collider detectors and to protect machine components. Based on detailed MonteCarlo simulations, measures have been proposed and incorporated in the machine to reduce accelerator-related instantaneous and residual background levels in the DØ and CDF detectors. Recent measurements are in good agreement with the predictions. A re-alignment of the electrostatic deflector and the Lambertson magnet and the addition of shielding in the AØ straight section has resulted in reduction of beam induced energy deposition in the superconducting magnets, which allowed an increase in the extracted beam intensity. Using the same simulation technique, it has been calculated that the total beam of 10 protons can be removed from the Tevatron at the end of the store, leaving the antiproton beam in the machine for recycling. Using the EØ collimator with attached scattering targets, this process will require about 100 seconds to keep the power deposition in the superconducting magnets below the quench level.