Abstract
We describe a study of high-energy Compton beam polarimeters for the future e + e − linear collider machine TESLA. A segment of the beam delivery system has been identified, which is aligned with the e + e − collision axis and which has a suitable configuration for high-quality beam polarization measurements. The laser envisaged for the Polarimeter is similar to an existing facility at DESY. It delivers very short pulses in the 10 ps, 10 – 100 μJ regime and operates with a pattern that matches the pulse and bunch structure of TESLA. This will permit very fast and accurate measurements and an expeditious tune-up of the spin manipulators at the low-energy end of the linac. Electron detection in the multi-event regime will be the principle operating mode of the Polarimeter. Other possible operating modes include photon detection and single-event detection for calibration purposes. We expect an overall precision of ΔP/P ~ 0.5% for the measurement of the beam polarization.
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Gharibyan, V., Meyners, N., Schüler, K.P. (2003). TESLA Polarimeters. In: Steffens, E., Shanidze, R. (eds) Spin Structure of the Nucleon. NATO Science Series II: Mathematics, Physics and Chemistry, vol 111. Springer, Dordrecht. https://doi.org/10.1007/978-94-010-0165-6_13
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DOI: https://doi.org/10.1007/978-94-010-0165-6_13
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