Two-dimensional synchrotron beam characterization from a single interferogram

Autor: Bojan Nikolic, Christopher L. Carilli, Nithyanandan Thyagarajan, Laura Torino, Ubaldo Iriso
Jazyk: angličtina
Rok vydání: 2024
Předmět:
Zdroj: Physical Review Accelerators and Beams, Vol 27, Iss 11, p 112802 (2024)
Druh dokumentu: article
ISSN: 2469-9888
DOI: 10.1103/PhysRevAccelBeams.27.112802
Popis: Double-aperture young interferometry is widely used in accelerators to provide a one-dimensional beam measurement. We improve this technique by combining and further developing techniques of nonredundant, two-dimensional, aperture masking, and self-calibration from astronomy. Using visible synchrotron radiation, tests at the ALBA synchrotron show that this method provides an accurate two-dimensional beam transverse characterization, even from a single 1 ms interferogram. The nonredundancy of the aperture mask in the technique enables it to be resistant to spatial phase fluctuations that might be introduced by vibration of optical components or in the laboratory atmosphere.
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