Author: Al-Najdawi, M.A.
Paper Title Page
WEPA10 Design and Ray-Tracing of the BEATS Beamline of SESAME 246
  • G. Iori, M.M. Al Shehab, M.A. Al-Najdawi, A. Lausi
    SESAME, Allan, Jordan
  • M. Altissimo, I. Cudin
    Elettra-Sincrotrone Trieste S.C.p.A., Basovizza, Italy
  • A. Kaprolat, J. Reyes-Herrera, P. Van Vaerenbergh
    ESRF, Grenoble, France
  • T. Kolodziej
    NSRC SOLARIS, Kraków, Poland
  Funding: EU H2020 framework programme for research and innovation. Grant agreement n°822535.
The BEAmline for Tomography at SESAME (BEATS) will operate an X-rayμtomography station providing service to scientists from archaeology, cultural heritage, medicine, biology, material science and engineering, geology and environmental sciences*. BEATS will have a length of 45 m with a 3-pole-wiggler source (3 T peak magnetic field at 11 mm gap). Filtered white and monochromatic beam (8 keV to 50 keV, dE/E: 2% to 3% using a double-multilayer-monochromator) modalities will be available. In this work we present the beamline optical design, verified with simulation tools included in OASYS**. The calculated flux through 1 mm2 at the sample position will be as high as 8.5×109 Ph/s/mm2 in 0.1% of the source bandwidth, for a maximum usable beam size of 70×15 mm2. Beam transverse coherence will be limited to below 1 µm by the horizontal size of the X-ray source (~2 mm FWHM). For phase contrast applications requiring enhanced coherence, front end slits can be closed to 0.5 mm horizontally, with a reduction of the available beam size and photon flux. The BEATS beamline will fulfill the needs of the tomography community of SESAME.
* H2020 project BEATS, Technical Design Report (July 2020).
** L. Rebuffi and M. Sanchez del Rio, Proc. SPIE 10388: 130080S (2017).
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About • paper received ※ 14 July 2021       paper accepted ※ 27 September 2021       issue date ※ 07 November 2021  
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