LHC BLM Single Channel Connectivity Test using the Standard Installation

For the LHC Beam Loss Measurement system (BLM), the high voltage supply of the ionisation chambers and the secondary emission detectors is used to test their connectivity. A harmonic modulation of 0.03 Hz results in a current signal of about 100pA measured by the beam loss acquisition electronics. T...

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Detalles Bibliográficos
Autores principales: Emery, J, Dehning, B, Effinger, E, Ferioli, G, Zamantzas, C, Ikeda, H, Verhagen, E
Lenguaje:eng
Publicado: 2009
Materias:
Accelerators and Storage Rings
Acceso en línea:http://cds.cern.ch/record/1183414
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author Emery, J
Dehning, B
Effinger, E
Ferioli, G
Zamantzas, C
Ikeda, H
Verhagen, E
author_facet Emery, J
Dehning, B
Effinger, E
Ferioli, G
Zamantzas, C
Ikeda, H
Verhagen, E
author_sort Emery, J
collection CERN
description For the LHC Beam Loss Measurement system (BLM), the high voltage supply of the ionisation chambers and the secondary emission detectors is used to test their connectivity. A harmonic modulation of 0.03 Hz results in a current signal of about 100pA measured by the beam loss acquisition electronics. The signal is analyzed and the measured amplitude and phase are compared with individual channel limits for the 4000 channels. It is foreseen to execute an automatic procedure for all channels every 12 hours which takes about 20 minutes. The paper will present the design of the system, the circuit simulations, measurements of systematic dependencies of different channels and the reproducibility of the amplitude and phase measurements.
id cern-1183414
institution Organización Europea para la Investigación Nuclear
language eng
publishDate 2009
record_format invenio
spelling cern-11834142019-09-30T06:29:59Zhttp://cds.cern.ch/record/1183414engEmery, JDehning, BEffinger, EFerioli, GZamantzas, CIkeda, HVerhagen, ELHC BLM Single Channel Connectivity Test using the Standard InstallationAccelerators and Storage RingsFor the LHC Beam Loss Measurement system (BLM), the high voltage supply of the ionisation chambers and the secondary emission detectors is used to test their connectivity. A harmonic modulation of 0.03 Hz results in a current signal of about 100pA measured by the beam loss acquisition electronics. The signal is analyzed and the measured amplitude and phase are compared with individual channel limits for the 4000 channels. It is foreseen to execute an automatic procedure for all channels every 12 hours which takes about 20 minutes. The paper will present the design of the system, the circuit simulations, measurements of systematic dependencies of different channels and the reproducibility of the amplitude and phase measurements.CERN-BE-2009-027oai:cds.cern.ch:11834142009-05-01
spellingShingle Accelerators and Storage Rings
Emery, J
Dehning, B
Effinger, E
Ferioli, G
Zamantzas, C
Ikeda, H
Verhagen, E
LHC BLM Single Channel Connectivity Test using the Standard Installation
title LHC BLM Single Channel Connectivity Test using the Standard Installation
title_full LHC BLM Single Channel Connectivity Test using the Standard Installation
title_fullStr LHC BLM Single Channel Connectivity Test using the Standard Installation
title_full_unstemmed LHC BLM Single Channel Connectivity Test using the Standard Installation
title_short LHC BLM Single Channel Connectivity Test using the Standard Installation
title_sort lhc blm single channel connectivity test using the standard installation
topic Accelerators and Storage Rings
url http://cds.cern.ch/record/1183414
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AT zamantzasc lhcblmsinglechannelconnectivitytestusingthestandardinstallation
AT ikedah lhcblmsinglechannelconnectivitytestusingthestandardinstallation
AT verhagene lhcblmsinglechannelconnectivitytestusingthestandardinstallation

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