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New higher-brilliance sources of infrared synchrotron radiation

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A new mechanism for the emission of infrared synchrotron radiation (IRSR) is observed following the longitudinal acceleration or deceleration of relativistic particles when leaving or entering a magnetic field (edges of dipole or undulator). This emission may present significant advantages in terms of brilliance and intensity compared to the emission by constant field acceleration (center of the magnet). A full numerical integration of the electrodynamic fields have allowed a complete review of the main characteristics of two sources of the 0.8 GeV ring Super-ACO (Orsay, France): a dipole edge and an undulator. The intensity of the emission (flux), brilliance, spatial distribution (asymmetry of the source), dependence of the emission on the magnetic field and polarisation have been evaluated for the emission in the infrared range. These parameters are compared with equivalent measurements providing a confirmation of the theoretical predictions.

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Author information

Correspondence to P. Roy or Y. -L. Mathis or A. Paolone or P. Giura or A. Nucara or S. Lupi or P. Calvani or A. Gerschel.

Additional information

Paper written for the 3rd Workshop on “Development of Infrared Synchrotron Radiation and Applications to Materials Science”, Orsay, 27-28 March 1997.

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Roy, P., Mathis, Y.-., Paolone, A. et al. New higher-brilliance sources of infrared synchrotron radiation. Nouv Cim D 20, 415–437 (1998). https://doi.org/10.1007/BF03185539

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PACS 42.72

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PACS 01.30.Cc

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