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TY - CONF AU - Boorman, G.E. AU - D'Arcy, R.T.P. AU - Gibson, S.M. AU - Jolly, S. AU - Lawrie, S.R. AU - Letchford, A.P. ED - Petit-Jean-Genaz, Christine ED - Arduini, Gianluigi ED - Michel, Peter ED - Schaa, Volker RW TI - Development of a BPM System using a Commercial FPGA Card and Digitizer Adaptor Module for FETS J2 - Proc. of IPAC2014, Dresden, Germany, June 15-20, 2014 C1 - Dresden, Germany T2 - International Particle Accelerator Conference T3 - 5 LA - english AB - A series of beam position monitors (BPMs) will be installed at the Front End Test Stand (FETS) at RAL as part of the 3 MeV Medium Energy Beam Transport (MEBT). The BPMs analyse 2 ms long, 60 mA beam pulses delivered to the MEBT by a 324 MHz Radio Frequency Quadrupole (RFQ). Initial linearity and resolution measurements from the prototype button BPMs are shown. The development of the algorithm for the processing of the BPM signals using a commercial PXI-based FPGA card is discussed and initial measurements of the electronics and signal processing are presented. The test-rig used to characterise each BPM and further develop the processing algorithm is described. The position and phase are measured several times throughout the duration of each pulse, and the measurements are made available via an EPICS server. PB - JACoW CP - Geneva, Switzerland SP - 3716 EP - 3718 KW - FPGA KW - LabView KW - pick-up KW - alignment KW - electronics DA - 2014/07 PY - 2014 SN - 978-3-95450-132-8 DO - 10.18429/JACoW-IPAC2014-THPME186 UR - http://jacow.org/ipac2014/papers/thpme186.pdf ER -