| Title |
Novel X-ray Beam Position Monitor for Coherent Soft X-ray Beamlines |
| Authors |
- B. Podobedov, D.M. Bacescu, C. Eng, S. Hulbert, C. Mazzoli, C.S. Nelson
BNL, Upton, New York, USA
- D. Donetski, K. Kucharczyk, J. Liu, R. Lutchman, J. Zhao
Stony Brook University, Stony Brook, New York, USA
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| Abstract |
A novel soft X-ray BPM (sXBPM) for high-power white beams of synchrotron undulator radiation is being developed through a joint effort of BNL/NSLS-II and Stony Brook University. In our approach, custom-made multi-pixel GaAs detector arrays are placed into the outer portions of the X-ray beam, and the beam position is inferred from the pixel photocurrents. Our goal is to achieve micron-scale positional and ~50 nrad angular resolution without interfering with user experiments, especially the most sensitive ones exploiting coherent properties of the beam. To this end, an elaborate mechanical system has been designed, fabricated, and installed in the 23-ID canted undulator beamline first optical enclosure, which allows positioning of the detectors with micron-scale accuracy, and provisions for possible intercepts of kW-level beam in abnormal conditions. Separately, GaAs detectors with specially tailored spectral response have been designed, fabricated, and tested in the soft and hard X-ray regions at two NSLS-II beamlines. In this talk we plan to give an overview of the sXBPM system and present the first results from the high-power white X-ray beam.
|
| Paper |
download TH3B2.PDF [0.638 MB / 4 pages] |
| Slides |
download TH3B2_TALK.PDF [5.100 MB] |
| Cite |
download ※ BibTeX
※ LaTeX
※ Text/Word
※ RIS
※ EndNote |
| Conference |
FLS2023 |
| Series |
ICFA Advanced Beam Dynamics Workshop (67th) |
| Location |
Luzern, Switzerland |
| Date |
27 August-01 September 2023 |
| Publisher |
JACoW Publishing, Geneva, Switzerland |
| Editorial Board |
Hans-Heinrich Braun (PSI, Villigen, Switzerland); Jan Chrin (PSI, Villigen, Switzerland); Romain Ganter (PSI, Villigen, Switzerland); Nicole Hiller (PSI, Villigen, Switzerland); Volker RW Schaa (GSI, Darmstadt, Germany) |
| Online ISBN |
978-3-95450-224-0 |
| Online ISSN |
2673-7035 |
| Received |
15 September 2023 |
| Revised |
15 September 2023 |
| Accepted |
17 September 2023 |
| Issued |
02 December 2023 |
| DOI |
doi:10.18429/JACoW-FLS2023-TH3B2 |
| Pages |
241-244 |
| Copyright |
 Published by JACoW Publishing under the terms of the Creative Commons Attribution 4.0 International license. Any further distribution of this work must maintain attribution to the author(s), the published article's title, publisher, and DOI. |
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