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Title: X-ray BPM-based feedback system at the APS storage ring

Abstract

At the Advanced Photon Source (APS) storage ring, the X-ray beam position monitors (X-BPMs) measure accurate photon position down to the submicron level. This level of stable measurement has been possible due to (1) superior thermal insulation and vibration damping of the X-ray BPM support structure, (2) minimal dependence on the bunch pattern and intensity variations, and (3) use of ultrastable preamplifiers and processing electronics. A new X-BPM interface is under development and will be discussed here. This interface will be integrated into the existing rf-based orbit feedback systems. To study preliminary results, an experimental X-BPM orbit feedback set-up was developed and implemented in one of the bending magnet beamlines. The results from this set-up are encouraging. For an operational fill, a typical orbit drift of 30 microns (at X-ray BPMs) has been reduced to less than 5 microns. The fill-to-fill photon orbit reproducibility has been improved from 75 microns to less than 10 microns.

Authors:
; ; ; ;
Publication Date:
Research Org.:
Argonne National Lab., IL (US)
Sponsoring Org.:
US Department of Energy (US)
OSTI Identifier:
755857
Report Number(s):
ANL/AOD/CP-101380
TRN: US0003783
DOE Contract Number:  
W-31109-ENG-38
Resource Type:
Conference
Resource Relation:
Conference: 9th Beam Instrumentation Workshop, Cambridge, MA (US), 05/08/2000--05/11/2000; Other Information: PBD: 17 May 2000
Country of Publication:
United States
Language:
English
Subject:
43 PARTICLE ACCELERATORS; ADVANCED PHOTON SOURCE; STORAGE RINGS; BEAM POSITION; BEAM MONITORS; ORBITS; FEEDBACK; ON-LINE CONTROL SYSTEMS

Citation Formats

Singh, O., Erwin, L., Decker, G., Laird, R., and Lenkszus, F. X-ray BPM-based feedback system at the APS storage ring. United States: N. p., 2000. Web.
Singh, O., Erwin, L., Decker, G., Laird, R., & Lenkszus, F. X-ray BPM-based feedback system at the APS storage ring. United States.
Singh, O., Erwin, L., Decker, G., Laird, R., and Lenkszus, F. Wed . "X-ray BPM-based feedback system at the APS storage ring". United States. https://www.osti.gov/servlets/purl/755857.
@article{osti_755857,
title = {X-ray BPM-based feedback system at the APS storage ring},
author = {Singh, O. and Erwin, L. and Decker, G. and Laird, R. and Lenkszus, F.},
abstractNote = {At the Advanced Photon Source (APS) storage ring, the X-ray beam position monitors (X-BPMs) measure accurate photon position down to the submicron level. This level of stable measurement has been possible due to (1) superior thermal insulation and vibration damping of the X-ray BPM support structure, (2) minimal dependence on the bunch pattern and intensity variations, and (3) use of ultrastable preamplifiers and processing electronics. A new X-BPM interface is under development and will be discussed here. This interface will be integrated into the existing rf-based orbit feedback systems. To study preliminary results, an experimental X-BPM orbit feedback set-up was developed and implemented in one of the bending magnet beamlines. The results from this set-up are encouraging. For an operational fill, a typical orbit drift of 30 microns (at X-ray BPMs) has been reduced to less than 5 microns. The fill-to-fill photon orbit reproducibility has been improved from 75 microns to less than 10 microns.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2000},
month = {5}
}

Conference:
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