The Antiproton Decelerator: Overview

Abstract The Antiproton Decelerator (AD) is a simplified scheme for the provision of antiprotons at 100 MeV/c based on fast extraction. It uses the existing antiproton production target area and the modified Antiproton Collector Ring in their current locations. The machine modifications necessary to deliver batches of 1 × 10 7 antiproton/mn at 100 MeV/c are well under way. Commissioning with test-protons is foreseen to start this September (1998), running-in with antiprotons is planned to start after the shut down (December 1998-April 1999) in Spring 1999. First physics runs are planned for late Summer/Autumn 1999. The status of the machine is described.