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Title: Beam size measurements based on movable quadrupolar pick-ups
Authors: Sounas, A.
Gasior, Marek
Lefevre, Thibaut
Mereghetti, Alessio
Olexa, Jakub
Redaelli, Stefano
Valentino, Gianluca
Keywords: Large Hadron Collider (France and Switzerland)
Colliders (Nuclear physics)
Particle beams -- Instruments
Issue Date: 2018-05
Publisher: JACoW
Citation: Sounas, A., Gasior, M., Lefevre, T., Mereghetti, A., Olexa, J., Redaelli, S., & Valentino, G. (2018). Beam size measurements based on movable quadrupolar pick-ups. 9th International Particle Accelerator Conference, 4.
Abstract: Quadrupolar pick-ups (PU) have been widely studied as candidates for non-intercepting beam size and emittance measurements. However, their application has been proven to be limited. Two fundamental factors make quadrupolar measurements exceptionally challenging: first, the low quadrupolar sensitivity of PUs and second, the parasitic position signal incorporated into the measured quadrupolar measurement. In this paper, an alignment technique, based on movable PUs, is proposed to efficiently cancel the parasitic position signal. Tests have been performed using PUs embedded in collimators in the Large Hadron Collider. Beam measurements demonstrate promising results.
Appears in Collections:Scholarly Works - FacICTCCE

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