JACoW is a publisher in Geneva, Switzerland that publishes the proceedings of accelerator conferences held around the world by an international collaboration of editors.
@inproceedings{podobedov:fls2023-th3b2,
author = {B. Podobedov and D.M. Bacescu and D. Donetski and C. Eng and S. Hulbert and K. Kucharczyk and J. Liu and R. Lutchman and C. Mazzoli and C.S. Nelson and J. Zhao},
% author = {B. Podobedov and D.M. Bacescu and D. Donetski and C. Eng and S. Hulbert and K. Kucharczyk and others},
% author = {B. Podobedov and others},
title = {{Novel X-ray Beam Position Monitor for Coherent Soft X-ray Beamlines}},
% booktitle = {Proc. FLS'23},
booktitle = {Proc. 67th ICFA Adv. Beam Dyn. Workshop Future Light Sources (FLS'23)},
eventdate = {2023-08-27/2023-09-01},
pages = {241--244},
paper = {TH3B2},
language = {english},
keywords = {detector, undulator, operation, photon, vacuum},
venue = {Luzern, Switzerland},
series = {ICFA Advanced Beam Dynamics Workshop},
number = {67},
publisher = {JACoW Publishing, Geneva, Switzerland},
month = {01},
year = {2024},
issn = {2673-7035},
isbn = {978-3-95450-224-0},
doi = {10.18429/JACoW-FLS2023-TH3B2},
url = {http://jacow.org/fls2023/papers/th3b2.pdf},
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.}},
}