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A Multiband-Instability-Monitor for High-Frequency Intra-Bunch Beam Diagnostics
The maximum beam particle intensity and minimum emittance that can be injected, accelerated and stored in high-brightness lepton as well as high-energy hadron accelerators is fundamentally limited by self-amplifying beam instabilities, intrinsic to unavoidable imperfections in accelerators. Traditio...
Autores principales: | , , |
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Lenguaje: | eng |
Publicado: |
2013
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Materias: | |
Acceso en línea: | http://cds.cern.ch/record/1637764 |
_version_ | 1780934656958398464 |
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author | Steinhagen, R J Boland, MJ Lucas, T G |
author_facet | Steinhagen, R J Boland, MJ Lucas, T G |
author_sort | Steinhagen, R J |
collection | CERN |
description | The maximum beam particle intensity and minimum emittance that can be injected, accelerated and stored in high-brightness lepton as well as high-energy hadron accelerators is fundamentally limited by self-amplifying beam instabilities, intrinsic to unavoidable imperfections in accelerators. Traditionally, intra-bunch or head-tail particle motion has been measured using fast digitizers, with even using state-of-the-art technology being limited in their effective intra-bunch position resolution to few tens of um in the multi-GHz regime. To improve on the present signal processing, a multiband-instability-monitor (MIM) prototype system has been designed, constructed and tested at the CERN Super- Proton-Synchrotron (SPS) and Large Hadron Collider (LHC). The system splits the signal into multiple equallyspaced narrowfrequency bands that are processed and analysed in parallel. Working with narrow-band signals permits the use of much higher resolution analogue-to-digitalconverters that can be used to resolve nm-scale particlemotion already during the onset of instabilities. |
id | cern-1637764 |
institution | Organización Europea para la Investigación Nuclear |
language | eng |
publishDate | 2013 |
record_format | invenio |
spelling | cern-16377642019-09-30T06:29:59Zhttp://cds.cern.ch/record/1637764engSteinhagen, R JBoland, MJLucas, T GA Multiband-Instability-Monitor for High-Frequency Intra-Bunch Beam DiagnosticsAccelerators and Storage RingsThe maximum beam particle intensity and minimum emittance that can be injected, accelerated and stored in high-brightness lepton as well as high-energy hadron accelerators is fundamentally limited by self-amplifying beam instabilities, intrinsic to unavoidable imperfections in accelerators. Traditionally, intra-bunch or head-tail particle motion has been measured using fast digitizers, with even using state-of-the-art technology being limited in their effective intra-bunch position resolution to few tens of um in the multi-GHz regime. To improve on the present signal processing, a multiband-instability-monitor (MIM) prototype system has been designed, constructed and tested at the CERN Super- Proton-Synchrotron (SPS) and Large Hadron Collider (LHC). The system splits the signal into multiple equallyspaced narrowfrequency bands that are processed and analysed in parallel. Working with narrow-band signals permits the use of much higher resolution analogue-to-digitalconverters that can be used to resolve nm-scale particlemotion already during the onset of instabilities.CERN-ACC-2013-0294oai:cds.cern.ch:16377642013-09-01 |
spellingShingle | Accelerators and Storage Rings Steinhagen, R J Boland, MJ Lucas, T G A Multiband-Instability-Monitor for High-Frequency Intra-Bunch Beam Diagnostics |
title | A Multiband-Instability-Monitor for High-Frequency Intra-Bunch Beam Diagnostics |
title_full | A Multiband-Instability-Monitor for High-Frequency Intra-Bunch Beam Diagnostics |
title_fullStr | A Multiband-Instability-Monitor for High-Frequency Intra-Bunch Beam Diagnostics |
title_full_unstemmed | A Multiband-Instability-Monitor for High-Frequency Intra-Bunch Beam Diagnostics |
title_short | A Multiband-Instability-Monitor for High-Frequency Intra-Bunch Beam Diagnostics |
title_sort | multiband-instability-monitor for high-frequency intra-bunch beam diagnostics |
topic | Accelerators and Storage Rings |
url | http://cds.cern.ch/record/1637764 |
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