Journal article

A distributed beam loss monitor for the Australian Synchrotron

Paul J Giansiracusa, Mark J Boland, Eva Barbara Holzer, Maria Kastriotou, Greg S LeBlanc, Thomas G Lucas, Eduardo Nebot del Busto, Roger P Rassool, Matteo Volpi, Carsten P Welsch

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT | ELSEVIER SCIENCE BV | Published : 2019

Abstract

A distributed beam loss monitoring system, named the optical fibre Beam Loss Monitor, has been installed at the Australian Synchrotron. Relativistic charged particles produced in beam loss events generate photons via the Cherenkov mechanism in four silica fibres that run parallel to the beam pipe and cover the majority of the accelerator's length. These photons are then guided by the fibres to detectors located outside of the accelerator tunnel. By measuring the time of flight of these photons, the locations of beam losses can be reconstructed. Based on this method a calibration was produced, mapping the time of flight to a position along the accelerator. This calibration was applied to loss..

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