MD2490 – Measurement of the TMCI threshold at flat-top in the LHC

This report summarizes the results of MD2490 on the measurement of the intensity threshold of the Transverse Mode Coupling Instability (TMCI) in the LHC at flat top. The measurement took place during MD block 3 of 2017, on the night between 15th and 16th September. The betatron tune of bunches with...

Descripción completa

Detalles Bibliográficos
Autores principales: Albert, Markus, Amorim, David, Antipov, Sergey, Biancacci, Nicolo, Buffat, Xavier, Carver, Lee Robert, Fuchsberger, Kajetan, Mereghetti, Alessio, Metral, Elias, Mounet, Nicolas, Salvant, Benoit, Valuch, Daniel
Lenguaje:eng
Publicado: 2020
Materias:
Accelerators and Storage Rings
Acceso en línea:http://cds.cern.ch/record/2742893
_version_ 1780968527060008960
author Albert, Markus
Amorim, David
Antipov, Sergey
Biancacci, Nicolo
Buffat, Xavier
Carver, Lee Robert
Fuchsberger, Kajetan
Mereghetti, Alessio
Metral, Elias
Mounet, Nicolas
Salvant, Benoit
Valuch, Daniel
author_facet Albert, Markus
Amorim, David
Antipov, Sergey
Biancacci, Nicolo
Buffat, Xavier
Carver, Lee Robert
Fuchsberger, Kajetan
Mereghetti, Alessio
Metral, Elias
Mounet, Nicolas
Salvant, Benoit
Valuch, Daniel
author_sort Albert, Markus
collection CERN
description This report summarizes the results of MD2490 on the measurement of the intensity threshold of the Transverse Mode Coupling Instability (TMCI) in the LHC at flat top. The measurement took place during MD block 3 of 2017, on the night between 15th and 16th September. The betatron tune of bunches with different intensities was measured via ADT excitation and for different collimator settings, thus changing the machine impedance. The tune shift versus intensity measurement allowed to extrapolate the intensity threshold of the TMCI. Relaxing the collimator settings to mimic the HL-LHC impedance reduction also showed the beneficial effect of the collimator upgrade planned for HL-LHC.
id cern-2742893
institution Organización Europea para la Investigación Nuclear
language eng
publishDate 2020
record_format invenio
spelling cern-27428932020-11-19T20:13:08Zhttp://cds.cern.ch/record/2742893engAlbert, MarkusAmorim, DavidAntipov, SergeyBiancacci, NicoloBuffat, XavierCarver, Lee RobertFuchsberger, KajetanMereghetti, AlessioMetral, EliasMounet, NicolasSalvant, BenoitValuch, DanielMD2490 – Measurement of the TMCI threshold at flat-top in the LHCAccelerators and Storage RingsThis report summarizes the results of MD2490 on the measurement of the intensity threshold of the Transverse Mode Coupling Instability (TMCI) in the LHC at flat top. The measurement took place during MD block 3 of 2017, on the night between 15th and 16th September. The betatron tune of bunches with different intensities was measured via ADT excitation and for different collimator settings, thus changing the machine impedance. The tune shift versus intensity measurement allowed to extrapolate the intensity threshold of the TMCI. Relaxing the collimator settings to mimic the HL-LHC impedance reduction also showed the beneficial effect of the collimator upgrade planned for HL-LHC.CERN-ACC-NOTE-2020-0056oai:cds.cern.ch:27428932020-09-28
spellingShingle Accelerators and Storage Rings
Albert, Markus
Amorim, David
Antipov, Sergey
Biancacci, Nicolo
Buffat, Xavier
Carver, Lee Robert
Fuchsberger, Kajetan
Mereghetti, Alessio
Metral, Elias
Mounet, Nicolas
Salvant, Benoit
Valuch, Daniel
MD2490 – Measurement of the TMCI threshold at flat-top in the LHC
title MD2490 – Measurement of the TMCI threshold at flat-top in the LHC
title_full MD2490 – Measurement of the TMCI threshold at flat-top in the LHC
title_fullStr MD2490 – Measurement of the TMCI threshold at flat-top in the LHC
title_full_unstemmed MD2490 – Measurement of the TMCI threshold at flat-top in the LHC
title_short MD2490 – Measurement of the TMCI threshold at flat-top in the LHC
title_sort md2490 – measurement of the tmci threshold at flat-top in the lhc
topic Accelerators and Storage Rings
url http://cds.cern.ch/record/2742893
work_keys_str_mv AT albertmarkus md2490measurementofthetmcithresholdatflattopinthelhc
AT amorimdavid md2490measurementofthetmcithresholdatflattopinthelhc
AT antipovsergey md2490measurementofthetmcithresholdatflattopinthelhc
AT biancaccinicolo md2490measurementofthetmcithresholdatflattopinthelhc
AT buffatxavier md2490measurementofthetmcithresholdatflattopinthelhc
AT carverleerobert md2490measurementofthetmcithresholdatflattopinthelhc
AT fuchsbergerkajetan md2490measurementofthetmcithresholdatflattopinthelhc
AT mereghettialessio md2490measurementofthetmcithresholdatflattopinthelhc
AT metralelias md2490measurementofthetmcithresholdatflattopinthelhc
AT mounetnicolas md2490measurementofthetmcithresholdatflattopinthelhc
AT salvantbenoit md2490measurementofthetmcithresholdatflattopinthelhc
AT valuchdaniel md2490measurementofthetmcithresholdatflattopinthelhc

Ejemplares similares