Random errors in undulators and their effects on the radiation spectrum
Abstract
Some of the damaging effects of random errors in undulator yields on the radiation produced are considered. Undulators and wigglers are central components of freeelectron lasers and proposed new highbrightness synchrotron radiation light sources. An approximate theory of the effects of random field errors is derived, along with limiting conditions on its validity. The functions' arguments are simple combinations of the basic undulator parameters. Simple numerical simulation methods are presented, and numerical results are compared with the predictions of the universal functions. Finally, possible solutions to the problem of random errors in undulators are discussed.
 Publication:

Journal of the Optical Society of America B Optical Physics
 Pub Date:
 August 1985
 DOI:
 10.1364/JOSAB.2.001294
 Bibcode:
 1985JOSAB...2.1294K
 Keywords:

 Electromagnetic Spectra;
 Free Electron Lasers;
 Magnets;
 Random Errors;
 Spectrum Analysis;
 Correlation;
 Electron Trajectories;
 Equations Of Motion;
 Fast Fourier Transformations;
 Random Walk;
 Lasers and Masers;
 LASERS: FREEELECTRON;
 SYNCHROTRON RADIATION