Measurements of the betatron functions in RHIC

摘要

The Relativistic Heavy Ion Collider (RHIC) provides collisions of the fully stripped gold ions for four experiments. This report shows results from measurements of the betatron functions within the Interaction Regions (IR) as well as in the arcs in both "blue" and "yellow" rings. A single quadrupole excitation or the beam position monitors' RMS. values at injection are used to obtain the betatron amplitude function.