Title :
A Bunch-by-Bunch and Turn-by-Turn Instrumentation Hardware Upgrade for CESR-C
Author :
Palmer, M.A. ; Dobbins, J.A. ; Strohman, C.R. ; Tanke, E.P.
Author_Institution :
LEPP, Cornell University, Ithaca, NY 14850, USA, map36@cornell.edu
Abstract :
A key factor in the colliding beam performance of the Cornell Electron Storage Ring (CESR) is the impact of parasitic beam-beam interactions between bunches in the two beams as they follow their electrostatically separated orbits in a single vacuum chamber. In order to better investigate the differential performance of bunches in CESR, instrumentation electronics has been developed to allow acquisition of turn-by-turn data from multiple bunches simultaneously. The electronics consists of a standardized digital board centered around an Analog Devices TigerSHARC family digital signal processor, a communications interface, and an interface to the CESR Precision Timing System. Mated to these components is an analog front-end and digitizer board which is customized for the particular diagnostic device of interest. Front-ends have been developed for beam position monitor, luminosity monitor, and beam profile monitor applications. We describe the design and characterization of this new hardware.
Keywords :
Clocks; Delay lines; Electron beams; Field programmable gate arrays; Hardware; Instruments; Monitoring; Orbits; Phase locked loops; Timing;
Conference_Titel :
Particle Accelerator Conference, 2005. PAC 2005. Proceedings of the
Print_ISBN :
0-7803-8859-3
DOI :
10.1109/PAC.2005.1591551
