An on-line data acquisition system of oscilloscope-embedded input/output controller for cavity BPM measurement

An on-line data acquisition system of oscilloscope-embedded input/output controller for cavity BPM measurement 1 first-author 1 1 corresp Corresponding author. E-mail address: lengyongbin@sinap.ac.cn Corresponding author. E-mail address: lengyongbin@sinap.ac.cn lengyongbin@sinap.ac.cn Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai 201800, China Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai 201800, China Cavity beam position monitor (BPM) is widely used in a precise electron beam position measurement. Based on high performance oscilloscope-embedded EPICS input/output controller, we developed an on-line cavity BPM signal processing system for fast data acquisition solution when designing a cavity BPM. Also, methods for extracting the position information from cavity pickup signals and calibration algorithm are included in this solution. Cavity Embedded input/output controller On-line acquisition Signal processing Fast Fourier transform Reference Maesaka H , Inoue S , Ohshima T , et al . Ai MOPD07: Development of the RF cavity BPM of XFEL/SPRING-8 , DIPAC09 , Basel, Switzerland , May 2009 , 56 - 58 . Ai MOPD07: Development of the RF cavity BPM of XFEL/SPRING-8 Young A , Johnson R G , Smith S . TUPSM028: LCLS Resonant cavity beam position monitors , BIW10 , Santa Fe, US , May 2010 , 177 - 181 . TUPSM028: LCLS Resonant cavity beam position monitors Lipka D . TUOC02: Cavity BPM designs, related electronics and measured performances , DIPAC09 , Basel, Switzerland , May 2009 , 280 - 284 . TUOC02: Cavity BPM designs, related electronics and measured performances Jackson J D . Classical Electrodynamics , second Ed., Wiley , New York , 1975 , 310/315 : 569 - 580 . Classical Electrodynamics Chu J H . Study of C-band cavity BPM and RF front-end signal processing system, PhD. Thesis , Shanghai Institute of Applied Physics, CAS , 2008 . Study of C-band cavity BPM and RF front-end signal processing system, PhD. Thesis Walston S , Boogert S , Chung C , et al . Nucl Instrum Meth Phys Res , 2007 , A578 : 1 - 4 . Nucl Instrum Meth Phys Res Kraimer M R , Anderson J , Johnson A , et al . EPICS: Input /output controller application developer’s guide . http://www.aps.anl.gov/epics/ ( December 2010 ). EPICS: Input /output controller application developer’s guide 10.13538/j.1001-8042/nst.22.321-325 Supported by National Natural Science Foundation (Grant No.11075198) . 2011-06-06 2011-12-20 2021-01-19 2011 Nuclear Science and Techniques 06 22