% IMPORTANT: The following is UTF-8 encoded.  This means that in the presence
% of non-ASCII characters, it will not work with BibTeX 0.99 or older.
% Instead, you should use an up-to-date BibTeX implementation like “bibtex8” or
% “biber”.

@ARTICLE{Trebushinin:631465,
      author       = {Trebushinin, Andrei and Geloni, Gianluca and Serkez,
                      Svitozar and Khubbutdinov, Ruslan and Saldin, Evgeny},
      title        = {{P}inhole camera for electron beam size diagnostic at
                      storage ring with an ultralow emittance},
      journal      = {Physical review accelerators and beams},
      volume       = {27},
      number       = {3},
      issn         = {2469-9888},
      address      = {College Park, MD},
      publisher    = {American Physical Society},
      reportid     = {PUBDB-2025-01977},
      pages        = {032802},
      year         = {2024},
      note         = {cc-by},
      abstract     = {In this work, we propose to use a pinhole camera at high
                      photon energies, specifically 200–300 keV, to measure
                      ultra-small electron beam size by means of bending magnet
                      radiation. We show that there is a sufficient photon flux at
                      the detector position. Our theoretical analysis includes an
                      examination of the applicability of the van Cittert-Zernike
                      theorem for the bending magnet radiation generated by an
                      ultralow emittance electron beam and a detailed analysis of
                      the imaging properties of rectangular pinhole cameras. This
                      led us to practical, universal formulas. We identify the
                      optimal aperture size and resolution of the camera in the
                      given geometry. The theoretical findings are further
                      substantiated by wavefront propagation numerical simulations
                      of partially coherent radiation. This study serves both as a
                      practical guide for optical engineering and an educational
                      resource for explaining the imaging properties of pinhole
                      cameras.},
      cin          = {FS-PETRA-BO / $XFEL_E2_FP$ / MPY},
      ddc          = {530},
      cid          = {I:(DE-H253)FS-PETRA-BO-20240110 /
                      $I:(DE-H253)XFEL_E2_FP-20221126$ / I:(DE-H253)MPY-20120731},
      pnm          = {621 - Accelerator Research and Development (POF4-621)},
      pid          = {G:(DE-HGF)POF4-621},
      experiment   = {EXP:(DE-MLZ)NOSPEC-20140101},
      typ          = {PUB:(DE-HGF)16},
      doi          = {10.1103/PhysRevAccelBeams.27.032802},
      url          = {https://bib-pubdb1.desy.de/record/631465},
}