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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2018-12-01
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Series: | Physical Review Accelerators and Beams |
Online Access: | http://doi.org/10.1103/PhysRevAccelBeams.21.122802 |
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doaj-1b05cdf82a2e47e388c6e0d8a3e47c212020-11-24T21:14:22ZengAmerican Physical SocietyPhysical Review Accelerators and Beams2469-98882018-12-01211212280210.1103/PhysRevAccelBeams.21.122802Design and operation of a prototype interaction point beam collision feedback system for the International Linear ColliderR. J. ApsimonD. R. BettN. Blaskovic KraljevicR. M. BodensteinT. BromwichP. N. BurrowsG. B. ChristianB. D. ConstanceM. R. DavisC. PerryR. RamjiawanA 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.http://doi.org/10.1103/PhysRevAccelBeams.21.122802 |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
R. J. Apsimon D. R. Bett N. Blaskovic Kraljevic R. M. Bodenstein T. Bromwich P. N. Burrows G. B. Christian B. D. Constance M. R. Davis C. Perry R. Ramjiawan |
spellingShingle |
R. J. Apsimon D. R. Bett N. Blaskovic Kraljevic R. M. Bodenstein T. Bromwich P. N. Burrows G. B. Christian B. D. Constance M. R. Davis C. Perry R. Ramjiawan Design and operation of a prototype interaction point beam collision feedback system for the International Linear Collider Physical Review Accelerators and Beams |
author_facet |
R. J. Apsimon D. R. Bett N. Blaskovic Kraljevic R. M. Bodenstein T. Bromwich P. N. Burrows G. B. Christian B. D. Constance M. R. Davis C. Perry R. Ramjiawan |
author_sort |
R. J. Apsimon |
title |
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_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_sort |
design and operation of a prototype interaction point beam collision feedback system for the international linear collider |
publisher |
American Physical Society |
series |
Physical Review Accelerators and Beams |
issn |
2469-9888 |
publishDate |
2018-12-01 |
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. |
url |
http://doi.org/10.1103/PhysRevAccelBeams.21.122802 |
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