Authors
S Rimjaem, F Stephan, M Krasilnikov, W Ackermann, G Asova, J Bähr, E Gjonaj, HJ Grabosch, L Hakobyan, M Hänel, Y Ivanisenko, M Khojoyan, G Klemz, S Lederer, M Mahgoub, P Michelato, L Monaco, M Nozdrin, B O’Shea, M Otevrel, B Petrosyan, D Richter, J Ronsch-Schulenburg, D Sertore, S Schreiber, S Schnepp, A Shapovalov, R Spesyvtsev, L Staykov, G Vashchenko, T Weiland, I Will
Publication date
2011/12/30
Journal
Nuclear Instruments and Methods in Physics Research A
Volume
671
Pages
62-75
Description
High brightness electron sources for linac based short-wavelength free-electron lasers are developed and optimized for small transverse projected emittance at the photo-injector test facility at DESY, location Zeuthen (PITZ). A major part of the measurement program at PITZ is dedicated to transverse phase space optimization in order to fulfill the requirements of the European X-ray free-electron laser (European XFEL). A laser-driven RF-gun, treated with a dry-ice sublimation-impulse cleaning technique, a new photocathode laser system allowing short rise and fall times of the flat-top temporal distribution as well as several new diagnostic components have been installed at PITZ in 2008. The electrons generated via the photo-effect at a cesium telluride (Cs2Te) cathode are accelerated by a 1.6 cell L-band RF-gun cavity with a maximum accelerating gradient at the cathode of about 60MV/m. The transverse projected …
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