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Persistent URL http://purl.org/net/epubs/work/62209
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Record Id 62209
Title Performance of Parabolic and Diffusive OTR Screens at the Clic Test Facility 3
Abstract At the CLIC Test Facility 3, OTR screens are commonly used in beam imaging systems for energy and energy spread characterization in dedicated spectrometer lines. In these lines the horizontal beam size is typically of the order of one centimeter. Already in 2005 a limitation was observed resulting from a strong dependence of the intensity of the light captured by the camera, on the position on the screen (vignetting). The severity of this effect increases with the electron energy, as the aperture of the optical system is finite and the OTR photons are emitted in a small cone of 1/γ angle. To mitigate this effect, different shapes and surface polishing of the screens were investigated. Parabolic and diffusive OTR radiators were tested in several spectrometer lines all along the CTF3 complex. The results are presented in this paper.
Organisation CI
Keywords Physics
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Language English (EN)
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Paper In Conference Proceedings In 10th European Workshop on Beam Diagnostics and Instrumentation for Particle Accelerators (DIPAC2011), Hamburg, Germany, 16-18 May 2011, CI Preprints, Cockcroft-11-09 (2011). Cockcroft-11-09.pdf 2011