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Abstract:
In this paper, the upgraded BPM system including the data acquisition instrumentation of HLS in NSRL phase II project are described in details. In the upgraded BPM system, we wash out the multiplexer relay switch system for signal transmit formerly and adopt paratactic signal processing. Bergoz's analog BPM modules and modular VXI instruments are adopted for BPM signal processing and data acquisition in order to provide stable and credible performance. The Lab VIEW developement environment not only provides good hardware controls but also promotes the development efficiency. After upgrade the new COD system with repetition error≤10μm and resolution 1μm is achieved in routine operation. Lately using the upgrade COD system we have completed the measurement of dispersion and one of magnetic field center for quadrupole magnet in beam based alignment(BBA) with local bump orbit, and have processed the experiment of global close orbit correction for HLS storage ring.
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References
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