| Paper |
Title |
Page |
| TUPC018 |
New Experimental Results with Optical Diffraction Radiation Diagnostics
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1083 |
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- E. Chiadroni, M. Castellano
INFN/LNF, Frascati (Roma)
- A. Cianchi
INFN-Roma II, Roma
- K. Honkavaara, G. Kube
DESY, Hamburg
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The characterization of the transverse phase space for high charge density and high energy electron beams is demanding for the successful development of the next generation light sources and linear colliders. The interest in a non-invasive and non-intercepting beam diagnostics is increasingly high due to the stringent features of such beams. Optical Diffraction Radiation (ODR) is considered as one of the most promising candidates to measure the transverse beam size and angular divergence, i.e. the transverse emittance. An experiment, based on the detection of the ODR angular distribution, has been set up at DESY FLASH Facility to measure the electron beam transverse parameters. In this paper we report the recent results on the incoherent diffraction radiation produced by a 1 GeV energy electron beam going through a rectangular slit.
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| TUPC111 |
Overview of the Diagnostics Systems of PETRA III
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1323 |
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- G. Kube, K. Balewski, A. Brenger, H. T. Duhme, V. Gharibyan, J. Klute, K. Knaack, I. Krouptchenkov, T. Lensch, J. Liebing, D. Lipka, R. Neumann, R. Neumann, G. Priebe, F. Schmidt-Foehre, H.-Ch. Schroeder, R. Susen, S. Vicins, M. Werner, Ch. Wiebers, K. Wittenburg
DESY, Hamburg
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Since mid-2007, the existing storage ring PETRA at DESY is reconstructed towards a dedicated third generation hard x-ray light source operating at 6 GeV with 100 mA stored current. The reconstruction includes the total rebuilding of one-eights of the storage ring. In this part the FODO lattice of the arcs is replaced by double-bend achromat cells, resulting in straight sections for 14 insertion device beamlines. Damping wigglers with a total length of 80 m are installed to reduce the emittance down to the design value of 1 nm rad. In order to fully benefit from this low emittance, beam stability is a crucial issue. For the achievement of the required performance and to allow a safe machine operation a number of beam instrumentation is required. Here the diagnostics system for the electron beam is presented with special emphasis on the essential instruments, i.e. the high resolution BPM system, profile monitors, feedback systems, and the machine protection system.
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