LONGITUDINAL PHASE SPACE STUDIES AT PITZ
LONGITUDINAL PHASE SPACE STUDIES AT PITZ
复制标题
皮茨纵向相空间研究
DOI:
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发表时间:
2005
期刊:
影响因子:
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通讯作者:
F. Stephan
中科院分区:
文献类型:
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作者:
J. Ronsch;J. Rossbach;D. Lipka;K. Abrahamyan;G. Asova;G. Dimitrov;S. Khodyachykh;M. Krasilnikov;S. Liu;V. Miltchev;A. Oppelt;B. Petrosyan;S. Riemann;L. Staykov;F. Stephan
The main goal of the Photo Injector Test facility at DESY in Zeuthen (PITZ) is to test and to optimize photo injectors for Free-Electron Lasers (FELs). The demands on such a photo injector are small transverse emittances, short bunches and high bunch charge. A FEL is driven by an accelerator which consists of a RF gun followed by an acceleration section and a magnetic bunch compressor. For an effective bunch compression detailed studies of the longitudinal phase space have to be performed. The correlation between the positions of the particles in the bunch and their longitudinal momenta has to be understood and the non-linearities of the longitudinal phase space have to be analysed. A special apparatus for longitudinal phase space tomography at a momentum of around 5 MeV using a dipole, a Cherenkov radiator, an optical transmission line and a streak camera was developed. Results of longitudinal phase space measurements are presented and compared with simulations and the influence of the space charge force is discussed.