Study of Low Work Function Materials for Hot Cavity Resonance Ionization Laser Ion Sources

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The selectivity of a hot cavity resonance ionization laser ion source (RILIS) is most often limited by contributions from competing surface ionization on the hot walls of the ionization cavity. In this article we present investigations on the properties of designated high-temperature, low-work funct...

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Autores principales: Catherall, R, Crepieux, B, Fedosseev, V, Marsh, B, Mattolat, C, Menna, Mariano, Österdahl, F, Raeder, S, Schwellnus, F, Stora, T, Wendt, K
Lenguaje:eng
Publicado: 2008
Materias:
Accelerators and Storage Rings
Acceso en línea:http://cds.cern.ch/record/1152281
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author Catherall, R
Crepieux, B
Fedosseev, V
Marsh, B
Mattolat, C
Menna, Mariano
Österdahl, F
Raeder, S
Schwellnus, F
Stora, T
Wendt, K
author_facet Catherall, R
Crepieux, B
Fedosseev, V
Marsh, B
Mattolat, C
Menna, Mariano
Österdahl, F
Raeder, S
Schwellnus, F
Stora, T
Wendt, K
author_sort Catherall, R
collection CERN
description The selectivity of a hot cavity resonance ionization laser ion source (RILIS) is most often limited by contributions from competing surface ionization on the hot walls of the ionization cavity. In this article we present investigations on the properties of designated high-temperature, low-work function materials regarding their performance and suitability as cavity material for RILIS. Tungsten test cavities, impregnated with a mixture of barium oxide and strontium oxide (BaOSrO on W), or alternatively gadolinium hexaboride (GdB6) were studied in comparison to a standard tungsten RILIS cavity as being routinely used for hot cavity laser ionization at ISOLDE. Measurement campaigns took place at the off-line mass separators at ISOLDE / CERN, Geneva and RISIKO / University of Mainz.
id cern-1152281
institution Organización Europea para la Investigación Nuclear
language eng
publishDate 2008
record_format invenio
spelling cern-11522812019-09-30T06:29:59Zhttp://cds.cern.ch/record/1152281engCatherall, RCrepieux, BFedosseev, VMarsh, BMattolat, CMenna, MarianoÖsterdahl, FRaeder, SSchwellnus, FStora, TWendt, KStudy of Low Work Function Materials for Hot Cavity Resonance Ionization Laser Ion SourcesAccelerators and Storage RingsThe selectivity of a hot cavity resonance ionization laser ion source (RILIS) is most often limited by contributions from competing surface ionization on the hot walls of the ionization cavity. In this article we present investigations on the properties of designated high-temperature, low-work function materials regarding their performance and suitability as cavity material for RILIS. Tungsten test cavities, impregnated with a mixture of barium oxide and strontium oxide (BaOSrO on W), or alternatively gadolinium hexaboride (GdB6) were studied in comparison to a standard tungsten RILIS cavity as being routinely used for hot cavity laser ionization at ISOLDE. Measurement campaigns took place at the off-line mass separators at ISOLDE / CERN, Geneva and RISIKO / University of Mainz.CERN-AB-Note-2008-056-ATBoai:cds.cern.ch:11522812008-12-01
spellingShingle Accelerators and Storage Rings
Catherall, R
Crepieux, B
Fedosseev, V
Marsh, B
Mattolat, C
Menna, Mariano
Österdahl, F
Raeder, S
Schwellnus, F
Stora, T
Wendt, K
Study of Low Work Function Materials for Hot Cavity Resonance Ionization Laser Ion Sources
title Study of Low Work Function Materials for Hot Cavity Resonance Ionization Laser Ion Sources
title_full Study of Low Work Function Materials for Hot Cavity Resonance Ionization Laser Ion Sources
title_fullStr Study of Low Work Function Materials for Hot Cavity Resonance Ionization Laser Ion Sources
title_full_unstemmed Study of Low Work Function Materials for Hot Cavity Resonance Ionization Laser Ion Sources
title_short Study of Low Work Function Materials for Hot Cavity Resonance Ionization Laser Ion Sources
title_sort study of low work function materials for hot cavity resonance ionization laser ion sources
topic Accelerators and Storage Rings
url http://cds.cern.ch/record/1152281
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AT crepieuxb studyoflowworkfunctionmaterialsforhotcavityresonanceionizationlaserionsources
AT fedosseevv studyoflowworkfunctionmaterialsforhotcavityresonanceionizationlaserionsources
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