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Studies of Cs3Sb cathodes for the CLIC drive beam photo injector option
Within the CLIC (Compact Linear Collider) project, feasibility studies of a photo injector option for the drive beam as an alternative to its baseline design using a thermionic electron gun are on-going. This R&D program covers both the laser and the photocathode side. Whereas the available lase...
Autores principales: | , , , , , |
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Lenguaje: | eng |
Publicado: |
2013
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Materias: | |
Acceso en línea: | http://cds.cern.ch/record/1635933 |
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author | Martini, Irene Chevallay, Eric Doebert, Steffen Fedosseev, Valentine Hessler, Christoph Martyanov, Mikhail |
author_facet | Martini, Irene Chevallay, Eric Doebert, Steffen Fedosseev, Valentine Hessler, Christoph Martyanov, Mikhail |
author_sort | Martini, Irene |
collection | CERN |
description | Within the CLIC (Compact Linear Collider) project, feasibility studies of a photo injector option for the drive beam as an alternative to its baseline design using a thermionic electron gun are on-going. This R&D program covers both the laser and the photocathode side. Whereas the available laser pulse energy in ultra-violet (UV) is currently limited by the optical defects in the 4thharmonics frequency conversion crystal induced by the0.14 ms long pulse trains, recent measurements of Cs3Sbphotocathodes sensitive to green light showed their potential to overcome this limitation. Moreover, using visible laser beams leads to better stability of produced electron bunches and one can take advantages of the availability of higher quality optics. The studied Cs3Sbphotocathodes have been produced in the CERN photo emission laboratory using the co-deposition technique and tested in a DC gun set-up. The analysis of data acquired during the cathode production process will be presented in this paper, as well as the results of lifetime measurements in the DC gun |
id | cern-1635933 |
institution | Organización Europea para la Investigación Nuclear |
language | eng |
publishDate | 2013 |
record_format | invenio |
spelling | cern-16359332023-07-20T15:07:07Zhttp://cds.cern.ch/record/1635933engMartini, IreneChevallay, EricDoebert, SteffenFedosseev, ValentineHessler, ChristophMartyanov, MikhailStudies of Cs3Sb cathodes for the CLIC drive beam photo injector optionAccelerators and Storage RingsWithin the CLIC (Compact Linear Collider) project, feasibility studies of a photo injector option for the drive beam as an alternative to its baseline design using a thermionic electron gun are on-going. This R&D program covers both the laser and the photocathode side. Whereas the available laser pulse energy in ultra-violet (UV) is currently limited by the optical defects in the 4thharmonics frequency conversion crystal induced by the0.14 ms long pulse trains, recent measurements of Cs3Sbphotocathodes sensitive to green light showed their potential to overcome this limitation. Moreover, using visible laser beams leads to better stability of produced electron bunches and one can take advantages of the availability of higher quality optics. The studied Cs3Sbphotocathodes have been produced in the CERN photo emission laboratory using the co-deposition technique and tested in a DC gun set-up. The analysis of data acquired during the cathode production process will be presented in this paper, as well as the results of lifetime measurements in the DC gunCERN-OPEN-2013-040CLIC-Note-1020oai:cds.cern.ch:16359332013-05-12 |
spellingShingle | Accelerators and Storage Rings Martini, Irene Chevallay, Eric Doebert, Steffen Fedosseev, Valentine Hessler, Christoph Martyanov, Mikhail Studies of Cs3Sb cathodes for the CLIC drive beam photo injector option |
title | Studies of Cs3Sb cathodes for the CLIC drive beam photo injector option |
title_full | Studies of Cs3Sb cathodes for the CLIC drive beam photo injector option |
title_fullStr | Studies of Cs3Sb cathodes for the CLIC drive beam photo injector option |
title_full_unstemmed | Studies of Cs3Sb cathodes for the CLIC drive beam photo injector option |
title_short | Studies of Cs3Sb cathodes for the CLIC drive beam photo injector option |
title_sort | studies of cs3sb cathodes for the clic drive beam photo injector option |
topic | Accelerators and Storage Rings |
url | http://cds.cern.ch/record/1635933 |
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