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Experimental Evaluation of the RF Shielding Properties of a Thin Resistive Layer in a Ceramic Chamber

In order to better understand the RF shielding properties of a thin resistive layer inside a ceramic vacuum chamber, an experimental set-up has been installed in the Electron Positron Accumulator (EPA) at CERN. A 500 MeV single bunch of about 7 x 1010 electrons (rms s=1 ns) is extracted into this de...

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Autores principales: Brandt, D, Caspers, Friedhelm, Mostacci, A, Rinolfi, Louis, Ruggiero, F, Tsutsui, H, Vos, L
Lenguaje:eng
Publicado: 2000
Materias:
Acceso en línea:http://cds.cern.ch/record/462633
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author Brandt, D
Caspers, Friedhelm
Mostacci, A
Rinolfi, Louis
Ruggiero, F
Tsutsui, H
Vos, L
author_facet Brandt, D
Caspers, Friedhelm
Mostacci, A
Rinolfi, Louis
Ruggiero, F
Tsutsui, H
Vos, L
author_sort Brandt, D
collection CERN
description In order to better understand the RF shielding properties of a thin resistive layer inside a ceramic vacuum chamber, an experimental set-up has been installed in the Electron Positron Accumulator (EPA) at CERN. A 500 MeV single bunch of about 7 x 1010 electrons (rms s=1 ns) is extracted into this dedicated beam line at a repetition rate of about 1 Hz. Wideband magnetic field probes are installed on the outer surfaces of a resistively coated ceramic test chamber as well as on a reference non-coated chamber located 2.5 m downstream the line. At the end of the extraction line, the beam passes through a thin Aluminum foil and is absorbed in an external dump. The experimental layout and the first results are presented. A comparison with theoretical expectations as well as possible implications for future machines are also discussed.
id cern-462633
institution Organización Europea para la Investigación Nuclear
language eng
publishDate 2000
record_format invenio
spelling cern-4626332023-05-31T13:24:26Zhttp://cds.cern.ch/record/462633engBrandt, DCaspers, FriedhelmMostacci, ARinolfi, LouisRuggiero, FTsutsui, HVos, LExperimental Evaluation of the RF Shielding Properties of a Thin Resistive Layer in a Ceramic ChamberAccelerators and Storage RingsIn order to better understand the RF shielding properties of a thin resistive layer inside a ceramic vacuum chamber, an experimental set-up has been installed in the Electron Positron Accumulator (EPA) at CERN. A 500 MeV single bunch of about 7 x 1010 electrons (rms s=1 ns) is extracted into this dedicated beam line at a repetition rate of about 1 Hz. Wideband magnetic field probes are installed on the outer surfaces of a resistively coated ceramic test chamber as well as on a reference non-coated chamber located 2.5 m downstream the line. At the end of the extraction line, the beam passes through a thin Aluminum foil and is absorbed in an external dump. The experimental layout and the first results are presented. A comparison with theoretical expectations as well as possible implications for future machines are also discussed.LHC-Project-Report-403CERN-LHC-Project-Report-403oai:cds.cern.ch:4626332000-08-14
spellingShingle Accelerators and Storage Rings
Brandt, D
Caspers, Friedhelm
Mostacci, A
Rinolfi, Louis
Ruggiero, F
Tsutsui, H
Vos, L
Experimental Evaluation of the RF Shielding Properties of a Thin Resistive Layer in a Ceramic Chamber
title Experimental Evaluation of the RF Shielding Properties of a Thin Resistive Layer in a Ceramic Chamber
title_full Experimental Evaluation of the RF Shielding Properties of a Thin Resistive Layer in a Ceramic Chamber
title_fullStr Experimental Evaluation of the RF Shielding Properties of a Thin Resistive Layer in a Ceramic Chamber
title_full_unstemmed Experimental Evaluation of the RF Shielding Properties of a Thin Resistive Layer in a Ceramic Chamber
title_short Experimental Evaluation of the RF Shielding Properties of a Thin Resistive Layer in a Ceramic Chamber
title_sort experimental evaluation of the rf shielding properties of a thin resistive layer in a ceramic chamber
topic Accelerators and Storage Rings
url http://cds.cern.ch/record/462633
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