Fast BPM DAQ System Using Windows Oscilloscope-based EPICS IOC M. Satoh, T. Suwada, K. Furukawa Accelerator Laboratory, KEK, Oho 1-1, Tsukuba, Ibaraki, 305-0801 Japan Jian Wang Department of Modern Physics, Univ. Sci.

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Fast BPM DAQ System Using Windows
Oscilloscope-based EPICS IOCM. Satoh, T. Suwada,
K. FurukawaAccelerator Laboratory, KEK, Oho 1-1,
Tsukuba, Ibaraki, 305-0801 JapanJian Wang
Department of Modern Physics, Univ. Sci. Tech.
ChinaHefei 230026, ChinaT. Kudou, S.
KusanoMitsubishi Electric System Service Co.,
Ltd, Tsukuba, Japan
Result of Performance Test
Introduction

• Waveform acquisition speed of a fast digital
  oscilloscope was tested.
• (Remote/ Local test Software is running on host
  computer/ oscilloscope)
• Both test results is enough for our purpose
  (50-Hz measurement).
• DAQ Rate by EPICS-IOC is also enough fast.

• KEK Linac is a injector
• KEKB HER 8 Gev e-/ 3.5 Gev e
• (Continuous injection Mode CIM)
• (2) KEKB LER 3.5 GeV e (CIM)
• (3) PF 2.5 Gev e- (once/day) gt Top-up
• (4) PF-AR 3 GeV e- (twice/day)
• For long-term stable beam operation
• Needs Beam Orbit and Energy Control
• We use about 100 of non-destructive BPMs for the
  orbit and energy feedback.
• Fast Beam-Mode Switch
• for KEKB CIM and PF Top-up
• gt Needs Beam Position Measurement up to 50-Hz

Previous BPM DAQ System (1-Hz)
New BPM DAQ System (gt 50-Hz)
Replaced!
DAQ Performance by EPICS-IOC