APPLICATION OF A 5 GSPS ANALOGUE RING SAMPLING CHIP FOR LOW-COST SINGLE-SHOT BPM SYSTEMS

The obtained test results indicate that DRS-based BPM electronics provide sufficient resolution e.g. for common transfer line BPMs. Other system characteristics like linearity and temperature drift as well as options for their in-situ measurement and FPGA-based periodic self-calibration are presently being investigated. The next chip version “DRS4” is expected to be available at PSI in a 10k quantity until fall 2008, with higher bandwidth, on-chip PLL, smaller chip size with improved grounding, and smaller AC bandwidth variations of the sampling cells. Further resolution improvements e.g. for stripline BPMs are possible by using the DRS4, by advanced amplitude fit ABSTRACT