Poster

PUBDB-2018-03881

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Further Improvements in Power Supply Controller Transient Recorders for Post-Mortem Analysis of BPM Orbit Dumps at PETRA-III

Bartkiewicz, P.DESY* ; Gindler, C.DESY* ; Sahoo, G. K. (Corresponding author)DESY*

2018

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Please use a persistent id in citations: doi:10.3204/PUBDB-2018-03881

Abstract: PETRA-III is a 3rd generation synchrotron light source dedicated to users with 14 beamlines beginning operations in 2010. The storage ring was modified in 2014 for an additional 12 beamlines in two extensions. It is operated with several filling modes with a total current of 100 mA at electron beam energy of 6 GeV. The horizontal beam emittance is 1.30 nmrad with 1% coupling. During a user run the Machine Protection System (MPS) may trigger an unscheduled beam dump due to high deviations in orbits if transients in the magnet power supply (PS) currents are detected which are above permissible limits. PS controllers provide transient recorder data, showing differences between current set-point and readout values in a time span of several seconds around the moment of a beam loss. We describe automatic management system handling a large number of PSs, performing automatic transient recorder data readout, storing and is available for offline analysis. We discuss hardware implementation of transient recorders and its configuration software, a Java GUI application used to investigate the transient behavior of different PSs, which might have been responsible for emittance growth, orbit fluctuations, or the beam dumps seen in a post-mortem analysis.

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Contributing Institute(s):

1. Beschleunigerphysik (MPY)
2. Prozessor gesteuerte Controller (MCS 2)
3. Beschleunigerkontrollen (MCS 1)

Research Program(s):

1. 631 - Accelerator R & D (POF3-631) (POF3-631)
2. 6G3 - PETRA III (POF3-622) (POF3-622)

Experiment(s):

1. Facility (machine) PETRA III

Appears in the scientific report 2018

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