The current performance and upgrade plans for the PHENIX data acquisition

PHENIX [1] is one of two large experiments at Brookhaven National Laboratory’s Relativistic Heavy Ion Collider (RHIC). Previously, the PHENIX experiment had completed very successful Runs that featured different beam species in RHIC. Over the last few years, we have improved the performance of the data acquisition system by introducing several key technologies, such as distributed compression and multi-event buffering, that had increased the event rate to 5KHz for the smaller collision systems that we measured since, Cu+Cu, and p+p. We were able to reach this goal also for the largest and most demanding collision system, Au+Au at 200AGeV.