Design and operation of a prototype interaction point beam collision feedback system for the International Linear Collider

A high-resolution, intratrain position feedback system has been developed to achieve and maintain collisions at the proposed future electron-positron International Linear Collider (ILC). A prototype has been commissioned and tested with a beam in the extraction line of the Accelerator Test Facility...

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Main Authors: Apsimon, RJ, Bett, DR, Kraljevic, N, Bodenstein, RM, Bromwich, T, Burrows, PN, Christian, GB, Constance, BD, Davis, MR, Perry, C, Ramjiawan, R
Format: Journal article
Language:English
Published: American Physical Society 2018
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author Apsimon, RJ
Bett, DR
Kraljevic, N
Bodenstein, RM
Bromwich, T
Burrows, PN
Christian, GB
Constance, BD
Davis, MR
Perry, C
Ramjiawan, R
author_facet Apsimon, RJ
Bett, DR
Kraljevic, N
Bodenstein, RM
Bromwich, T
Burrows, PN
Christian, GB
Constance, BD
Davis, MR
Perry, C
Ramjiawan, R
author_sort Apsimon, RJ
collection OXFORD
description A high-resolution, intratrain position feedback system has been developed to achieve and maintain collisions at the proposed future electron-positron International Linear Collider (ILC). A prototype has been commissioned and tested with a beam in the extraction line of the Accelerator Test Facility at the High Energy Accelerator Research Organization in Japan. It consists of a stripline beam position monitor (BPM) with analogue signal-processing electronics, a custom digital board to perform the feedback calculation, and a stripline kicker driven by a high-current amplifier. The closed-loop feedback latency is 148 ns. For a three-bunch train with 154 ns bunch spacing, the feedback system has been used to stabilize the third bunch to 450 nm. The kicker response is linear, and the feedback performance is maintained, over a correction range of over ±60  μm. The propagation of the correction has been confirmed by using an independent stripline BPM located downstream of the feedback system. The system has been demonstrated to meet the BPM resolution, beam kick, and latency requirements for the ILC.
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spelling oxford-uuid:0311673a-7595-400b-bda5-9b9263f0198f2022-03-26T08:44:05ZDesign and operation of a prototype interaction point beam collision feedback system for the International Linear ColliderJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:0311673a-7595-400b-bda5-9b9263f0198fEnglishSymplectic Elements at OxfordAmerican Physical Society2018Apsimon, RJBett, DRKraljevic, NBodenstein, RMBromwich, TBurrows, PNChristian, GBConstance, BDDavis, MRPerry, CRamjiawan, RA high-resolution, intratrain position feedback system has been developed to achieve and maintain collisions at the proposed future electron-positron International Linear Collider (ILC). A prototype has been commissioned and tested with a beam in the extraction line of the Accelerator Test Facility at the High Energy Accelerator Research Organization in Japan. It consists of a stripline beam position monitor (BPM) with analogue signal-processing electronics, a custom digital board to perform the feedback calculation, and a stripline kicker driven by a high-current amplifier. The closed-loop feedback latency is 148 ns. For a three-bunch train with 154 ns bunch spacing, the feedback system has been used to stabilize the third bunch to 450 nm. The kicker response is linear, and the feedback performance is maintained, over a correction range of over ±60  μm. The propagation of the correction has been confirmed by using an independent stripline BPM located downstream of the feedback system. The system has been demonstrated to meet the BPM resolution, beam kick, and latency requirements for the ILC.
spellingShingle Apsimon, RJ
Bett, DR
Kraljevic, N
Bodenstein, RM
Bromwich, T
Burrows, PN
Christian, GB
Constance, BD
Davis, MR
Perry, C
Ramjiawan, R
Design and operation of a prototype interaction point beam collision feedback system for the International Linear Collider
title Design and operation of a prototype interaction point beam collision feedback system for the International Linear Collider
title_full Design and operation of a prototype interaction point beam collision feedback system for the International Linear Collider
title_fullStr Design and operation of a prototype interaction point beam collision feedback system for the International Linear Collider
title_full_unstemmed Design and operation of a prototype interaction point beam collision feedback system for the International Linear Collider
title_short Design and operation of a prototype interaction point beam collision feedback system for the International Linear Collider
title_sort design and operation of a prototype interaction point beam collision feedback system for the international linear collider
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