Publisher’s Note: Constraints on photon pulse duration from longitudinal electron beamdiagnostics at a soft x-ray free-electron laser

[Phys. Rev. STAccel. Beams 15, 030707 (2012)]

C. Behrens, N. Gerasimova, Ch. Gerth, B. Schmidt, E. A. Schneidmiller, S. Serkez, S. Wesch, and M.V. Yurkov(Received 13 June 2012; published 18 June 2012)

DOI: 10.1103/PhysRevSTAB.15.069902 PACS numbers: 29.27.�a, 41.60.Cr, 41.50.+h, 99.10.Fg

This paper was published with tagging errors online on 22March 2012. Several occurrences of ‘‘E’’ should have been setas ‘‘e’’ and were corrected throughout the published article. A footnote address has also been added for the first author,C. Behrens. The paper has been corrected online as of 13 June 2012.

Published by the American Physical Society under the terms of the Creative Commons Attribution 3.0 License. Further distribution ofthis work must maintain attribution to the author(s) and the published article’s title, journal citation, and DOI.

PHYSICAL REVIEW SPECIAL TOPICS - ACCELERATORS AND BEAMS 15, 069902 (2012)

1098-4402=12=15(6)=069902(1) 069902-1 � 2012 American Physical Society