The Design and Production of the Higher-Order-Mode Loads for CEBAF

Abstract

At CEBAF, 676 Higher-Order-Mode (HOM) loads are being installed, within the beam vacuum at 2 K, to damp HOM's that affect the stability of the recirculating electron beam. In this paper, the requirements imposed on the loads and the microwave absorbing material comprising them are discussed together with an analysis of their performance and effect on some relevant modes