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Design and Operation of a Radiative Bhabha Luminosity Monitor for CESR-C

Palmer, M.A., Crede, V., Rubin, D.L., Smith, J.C., Cravey, M., Napolitano, J., Vogel, H. and Dooley, Katherine ORCID: https://orcid.org/0000-0002-1636-0233 2005. Design and Operation of a Radiative Bhabha Luminosity Monitor for CESR-C. Presented at: Particle Accelerator Conference 2005, Knoxville, TN, USA, 16-20 May 2005. Proceedings of the Particle Accelerator Conference, 2005. Proceedings of the Particle Accelerator Conference IEEE, pp. 3564-3566. 10.1109/PAC.2005.1591540

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Abstract

The CLEO-c experiment at the Cornell Electron Storage Ring (CESR) is presently embarking on a multi-year exploration of charm and QCD physics in the 3-5 GeV center-of-mass energy range. In order to facilitate rapid optimization of machine parameters over this energy range, a luminosity monitor based on the measurement of radiative-Bhabha photons coming from the CLEO-c interaction point (IP) has been designed and installed in the CESR ring. Key design criteria of the device include: better than 1% statistical measurements of the luminosity with a 1 Hz update rate over the full range of CESR-c operating conditions; bunch-by-bunch measurement capability; a large horizontal aperture to enable measurements under conditions ranging from single-bunch head-on collisions to multi-bunch collisions with a horizontal crossing angle of up to 4 mrad; and, a segmented readout to provide direct information on beam characteristics at the IP. We review the design and performance of this device and discuss its application to machine tuning and performance studies.

Item Type: Conference or Workshop Item (Paper)
Date Type: Publication
Status: Published
Schools: Physics and Astronomy
Subjects: Q Science > QC Physics
Publisher: IEEE
ISBN: 0-7803-8859-3
ISSN: 1944-4680
Last Modified: 23 Oct 2022 12:50
URI: https://orca.cardiff.ac.uk/id/eprint/108824

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