Reconstruction of electron beam distribution using phase-retrieval algorithm

The shapes of light sources such as electron beams can be reconstructed by inverse Fourier transformation of the complex degree of spatial coherency, which can be measured using Young's interferometer. The application of the phase‐retrieval algorithm to reduce phase measurement errors in the co...

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Bibliographic Details
Published in:Journal of synchrotron radiation 2011-05, Vol.18 (3), p.436-441
Main Authors: Parc, Yong Woon, Kim, Changbum, Huang, Jung Yun, Ko, In Soo
Format: Article
Language:English
Subjects:
Accelerators
Algorithms
Coherence
coherency
electron beam
Electron beams
interference
Interferometers
Inverse
Skewed distributions
Synchrotron radiation
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Summary:The shapes of light sources such as electron beams can be reconstructed by inverse Fourier transformation of the complex degree of spatial coherency, which can be measured using Young's interferometer. The application of the phase‐retrieval algorithm to reduce phase measurement errors in the complex degree of spatial coherency is numerically studied using an electron beam with an asymmetric distribution. This application is demonstrated with experimental data measured at the diagnostic beamline at the Pohang Accelerator Laboratory.
ISSN:1600-5775
0909-0495
1600-5775
DOI:10.1107/S0909049511004031