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DC Field | Value | Language |
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dc.contributor.author | Azzopardi, Gabriella | - |
dc.contributor.author | Valentino, Gianluca | - |
dc.contributor.author | Salvachua, Belen | - |
dc.contributor.author | Redaelli, Stefano | - |
dc.contributor.author | Muscat, Adrian | - |
dc.date.accessioned | 2020-07-17T06:20:20Z | - |
dc.date.available | 2020-07-17T06:20:20Z | - |
dc.date.issued | 2019-10 | - |
dc.identifier.citation | Azzopardi, G., Valentino, G., Salvachua, B., Redaelli, S., & Muscat, A. (2019). AAutomatic beam loss threshold selection for LHC collimator alignment. 17th International Conference on Accelerator and Large Experimental Physics Control Systems (ICALEPCS’19), New York (NY), USA. | en_GB |
dc.identifier.uri | https://www.um.edu.mt/library/oar/handle/123456789/58843 | - |
dc.description.abstract | The collimation system used in the Large Hadron Collider at CERN is positioned around the beam with a hierarchy that protects sensitive equipment from unavoidable beam losses. The collimator settings are determined using a beam-based alignment technique, where collimator jaws are moved towards the beam until the beam losses exceed a predefined threshold. This threshold needs to be updated dynamically, corresponding to the changes in the beam losses. The current method for aligning collimators is semi-automated requiring a collimation expert to monitor the loss signals and continuously select and update the threshold accordingly. The human element in this procedure is a major bottleneck for speeding up the alignment. This paper therefore proposes a method to fully automate this threshold selection. A data set was formed from previous alignment campaigns and analysed to define an algorithm that produced results consistent with the user selections. In over 90% of the cases the difference between the two was negligible and the algorithm presented in this study was used for collimator alignments throughout 2018. | en_GB |
dc.language.iso | en | en_GB |
dc.publisher | JACoW | en_GB |
dc.rights | info:eu-repo/semantics/openAccess | en_GB |
dc.subject | Large Hadron Collider (France and Switzerland) | en_GB |
dc.subject | Collimators (Optical instrument) | en_GB |
dc.title | Automatic beam loss threshold selection for LHC collimator alignment | en_GB |
dc.type | conferenceObject | en_GB |
dc.rights.holder | The copyright of this work belongs to the author(s)/publisher. The rights of this work are as defined by the appropriate Copyright Legislation or as modified by any successive legislation. Users may access this work and can make use of the information contained in accordance with the Copyright Legislation provided that the author must be properly acknowledged. Further distribution or reproduction in any format is prohibited without the prior permission of the copyright holder. | en_GB |
dc.bibliographicCitation.conferencename | 17th International Conference on Accelerator and Large Experimental Physics Control Systems (ICALEPCS’19) | en_GB |
dc.bibliographicCitation.conferenceplace | New York, NY, USA, 5-11/10/2019 | en_GB |
dc.description.reviewed | peer-reviewed | en_GB |
Appears in Collections: | Scholarly Works - FacICTCCE |
Files in This Item:
File | Description | Size | Format | |
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mopha010.pdf | 1.56 MB | Adobe PDF | View/Open |
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