Open AccessReconstruction of electron beam distribution using phase‐retrieval algorithm
Author(s) -
Parc Yong Woon,
Kim Changbum,
Huang Jung Yun,
Ko In Soo
Publication year - 2011
Publication title -
journal of synchrotron radiation
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.172
H-Index - 99
ISSN - 1600-5775
DOI - 10.1107/s0909049511004031
Subject(s) - phase retrieval , beamline , optics , interferometry , phase (matter) , fourier transform , cathode ray , electron , beam (structure) , physics , inverse , transformation (genetics) , algorithm , computer science , mathematics , chemistry , nuclear physics , geometry , biochemistry , quantum mechanics , gene
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.