Publisher’s Note: Deducing the Electron-Beam Diameter in a Laser-Plasma Accelerator Using X-Ray Betatron Radiation [Phys. Rev. Lett. 108, 075001 (2012)]
Michael Schnell, Alexander Savert, Bjorn Landgraf, Maria Reuter, Maria Nicolai, Oliver Jackel, Christian Peth, Tobias Thiele, Oliver Jansen, Alexander Pukhov, Oswald Willi, Malte C. Kaluza, and Christian Spielmann
Phys. Rev. Lett. 108, 189907 – Published 4 May 2012
Michael Schnell, Alexander Sävert, Björn Landgraf, Maria Reuter, Maria Nicolai, Oliver Jäckel, Christian Peth, Tobias Thiele, Oliver Jansen, Alexander Pukhov, Oswald Willi, Malte C. Kaluza, and Christian Spielmann