Beam cooling

The technique of stochastic cooling is applicable to particles such as antiprotons circulating in a ring. Sensitive electrodes are needed to pick up from each passing particle the tiny signal indicating its deviation from the mean transverse position and velocity of the beam. That signal is then amplified and transmitted downstream by fast electronics to a kicker electrode, where it is applied as a corrective impulse to the same particle. The development, production, and testing of components for stochastic cooling of antiprotons is being carried out in support of the Tevatron proton-antiproton collider project at Fermilab. In addition, we are beginning to pursue improvements in this technology and its more general application to feedback systems in the SSC