Measurement and Correction of Nonlinear Chromaticity in RHIC

Abstract

To improve luminosity in RHIC by using smaller β, higher order chromatic effects may need to be corrected [1]. Measuring of higher order chromaticities is discussed and compared to a model of RHIC, showing agreement. Assuming round beams, four families of octupoles are used to correct the second order chromaticities while keeping under control the amplitude… (More)

6 Figures and Tables