@article{5757,
  author = {W. A. Gillespie and A. M. MacLeod and P. F. Martin and A. F. G. van der Meer and P. W. van Amersfoort},
  title = {Time-resolved electron spectrum diagnostics for a free-electron laser},
  abstract = {Time-resolved electron-beam diagnostics have been developed for use with free-electron lasers (FELs) and associated electron sources, based on the techniques of secondary electron emission and optical transition radiation (OTR). The 32-channel OTR detector forms part of a high-resolution (0.18%) electron spectrometer with a time resolution of 50 ns. Variable-magnification optics allow the spectrometer to view single-macropulse spectra with widths in the range of 0.2%-7%; wider spectra are taken with several momentum settings. Design criteria for the spectrometer are presented, and experience of operating with the diagnostics over a range of FEL physics experiments is summarized. The spectrometer is used, in conjunction with optical diagnostics, in studies at FELIX of efficiency enhancement, pulse chirping, and stepped-undulator operation. (C) 1996 American Institute of Physics.},
  year = {1996},
  journal = {Review of Scientific Instruments},
  volume = {67},
  number = {3},
  pages = {641-648},
  month = {Mar},
  isbn = {0034-6748},
  doi = {10.1063/1.1146835},
  language = {eng},
}