@inproceedings{e45d460710a7485ba3815f2cb3348524,
title = "FEL spectral measurements at LCLS",
abstract = "We report measurements made at LCLS of average and single shot spectra of x-ray FEL radiation, including correlations with chirp and bunch current. And, for normaland over-compressed beams, we show the relationship between the electron energy distributions before the undula-tor and FEL spectra. We find the bandwidth of normally compressed beams can approach the theoretical minimum SASE bandwidth, though only for relative weak beams. Over-compressed beams can have large bandwidth with fwhm of 2% or more and pulse energy comparable to normally compressed beams. In this case the bandwidth is dominated by electron energy spread and the FEL radiation is probably chirped.",
author = "J. Welch and Decker, {F. J.} and Y. Ding and P. Emma and A. Fisher and J. Frisch and Z. Huang and R. Iverson and H. Loos and M. Messerschmidt and Nuhn, {H. D.} and D. Ratner and J. Turner and J. Wu",
year = "2011",
language = "English (US)",
isbn = "9783954501175",
series = "FEL 2011 - 33rd International Free Electron Laser Conference",
pages = "461--464",
booktitle = "FEL 2011 - 33rd International Free Electron Laser Conference",
note = "33rd International Free Electron Laser Conference, FEL 2011 ; Conference date: 22-08-2011 Through 26-08-2011",
}