Open AccessUpgrading the Digital Electronics of the PEP-II Bunch Current Monitors at the Stanford Linear Accelerator Center
Author(s) -
Josh Kline
Publication year - 2006
Publication title -
osti oai (u.s. department of energy office of scientific and technical information)
Language(s) - English
Resource type - Reports
DOI - 10.2172/890773
Subject(s) - upgrade , linear particle accelerator , field programmable gate array , bunches , storage ring , generator (circuit theory) , particle accelerator , electrical engineering , electronics , computer science , physics , nuclear engineering , nuclear physics , computer hardware , engineering , electron , operating system , optics , beam (structure) , power (physics) , quantum mechanics
The testing of the upgrade prototype for the bunch current monitors (BCMs) in the PEP-II storage rings at the Stanford Linear Accelerator Center (SLAC) is the topic of this paper. Bunch current monitors are used to measure the charge in the electron/positron bunches traveling in particle storage rings. The BCMs in the PEP-II storage rings need to be upgraded because components of the current system have failed and are known to be failure prone with age, and several of the integrated chips are no longer produced making repairs difficult if not impossible. The main upgrade is replacing twelve old (1995) field programmable gate arrays (FPGAs) with a single Virtex II FPGA. The prototype was tested using computer synthesis tools, a commercial signal generator, and a fast pulse generator
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