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T: Fachverband Teilchenphysik
T 81: Beschleunigerphysik 3
T 81.5: Talk
Tuesday, February 28, 2012, 17:50–18:05, VG 1.103
Emittance measurements results with upgraded setup at PITZ — •Grygorii Vashchenko1, Galina Asova1, Matthias Gross1, Levon Hakobyan1, Igor Isaev1, Yevgeniy Ivanisenko1, Martin Khojoyan1, Guido Klemz1, Mikhail Krasilnikov1, Mahmoud Mahgoub1, Dmitriy Malyutin1, Mikhail Nozdrin2, Marek Otevrel1, Bagrat Petrosyan1, Dieter Riechter1, Sakhorn Rimjaem1, Andrey Shapovalov1, Frank Stephan1, Horst-Ingo Templin3, and Ingo Will3 — 1DESY, 15738 Zeuthen, Germany — 2JINR, 141980 Dubna, Russia — 3MBI, 12489 Berlin, Germany
The photo injector test facility at DESY, Zeuthen site, PITZ develops and characterizes photoelectron sources for linac driven free electron lasers (FELs) such as FLASH and the European XFEL. The main goal of the PITZ is to obtain electron beams with low transverse normalize emittance which is necessary for the successful operation of SASE FEL. Major parts of the facility - gun and booster cavities, photocathode laser system were upgraded in 2010 in order to improve the photo injector performance. A slit technique is used at PITZ to reconstruct the transverse phase space of the electron beam. Many machine parameters were tuned to optimize the beam emittance for a wide range of the bunch charge - from 20 pC to 2 nC. Measured emittance depending on various machine parameters like a gun launching phase, booster gradient, laser spot size on the cathode and main solenoid current will be presented