Ramp management in RHIC
J. Kewisch, J. van Zeijts, Steve Peggs, Todd J. Satogata · Proceedings of the 1999 Particle Accelerator Conference (Cat. No.99CH36366) · 2003
In RHIC, magnets and RF cavities are controlled by Wave Form Generators (WFGs), simple real time computers which generate the set points. The WFGs are programmed to change set points from one state to another in a synchronized way. Such transition is called a "Ramp" and consists of a sequence of "stepping stones" which contain the set point of every WFG controlled device at a point in time. An appropriate interpolation defines the set points between these stepping stones. This report describes the implementation of the ramp system. The user interface, tools to create and modify ramps, interaction with modeling tools and measurements and correction programs are discussed.