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Poster communications

Fast Luminosity Monitoring using Diamond Sensors for the Super Flavor Factory SuperKEKB

Abstract : Super luminous flavor factories, as SuperKEKB in Japan, aim to achieve very high luminosity thanks to a newly employed concept, the nano-beam scheme, where ultra-low emittance beams collide at very large crossing angle. Luminosity optimisation and dynamic imperfections require fast luminosity measurements. The aimed precision, 10−3 in 10 ms, can be achieved thanks to the very large cross-section of the radiative Bhabha process at zero-photon scattering angle. As a result of huge particle fluxes, diamond sensors are chosen to be placed just outside the beam-pipe, downstream of the interaction point, at locations with event rates consistent with the aimed precision and small enough contamination by backgrounds from single-beam particle losses. We will present the results concerning the investigation of the optimal positioning of our diamond sensors, taking into account the rate of Bhabha particles as well as their interactions with the beam pipe material.
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Poster communications
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Contributor : Sabine Starita <>
Submitted on : Thursday, July 17, 2014 - 5:10:46 PM
Last modification on : Wednesday, September 16, 2020 - 5:38:33 PM
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  • HAL Id : in2p3-01020930, version 1




D. El Khechen, C. Rimbault, P. Bambade, D. Jehanno. Fast Luminosity Monitoring using Diamond Sensors for the Super Flavor Factory SuperKEKB. Christine Petit-Jean-Genaz; Gianluigi Arduini; Peter Michel; Volker RW Schaa. 5th International Particle Accelerator Conference IPAC'14, Jun 2014, Dresden, Germany. Joint Accelerator Conferences Website, THPME090, pp.3442-3444, 2014. ⟨in2p3-01020930⟩



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