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Laser Wire Scanner: Basic Process and Perspectives for the CTF's and CLIC Machines
In a laser wire scanner, the basic idea is to replace the solid wire classically used in a standard wire scanner by a narrow laser beam. The basic process involved is the Thomson-Compton scattering process, where photons are scattered from the laser beam by the incoming electrons. By counting the nu...
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Lenguaje: | eng |
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2002
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Acceso en línea: | http://cds.cern.ch/record/535808 |
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author | Lefèvre, T |
author_facet | Lefèvre, T |
author_sort | Lefèvre, T |
collection | CERN |
description | In a laser wire scanner, the basic idea is to replace the solid wire classically used in a standard wire scanner by a narrow laser beam. The basic process involved is the Thomson-Compton scattering process, where photons are scattered from the laser beam by the incoming electrons. By counting the number of scattered photons or degraded electrons as a function of laser position the bunch profile can be reconstructed. In this note the Compton scattering mechanism is first presented. In the framework of the CLIC project, a laser wire scanner (LWS) could be used as a non-interfering beam profile measurement both on the Drive Beam for a high current electron beam and on the Main Beam for very small electron beam sizes. A design for a LWS on the CTF2 and CTF3 machines is proposed and some considerations for the use of a LWS on the CLIC main beam are also mentioned. |
id | cern-535808 |
institution | Organización Europea para la Investigación Nuclear |
language | eng |
publishDate | 2002 |
record_format | invenio |
spelling | cern-5358082023-08-17T09:45:07Zhttp://cds.cern.ch/record/535808engLefèvre, TLaser Wire Scanner: Basic Process and Perspectives for the CTF's and CLIC MachinesAccelerators and Storage RingsIn a laser wire scanner, the basic idea is to replace the solid wire classically used in a standard wire scanner by a narrow laser beam. The basic process involved is the Thomson-Compton scattering process, where photons are scattered from the laser beam by the incoming electrons. By counting the number of scattered photons or degraded electrons as a function of laser position the bunch profile can be reconstructed. In this note the Compton scattering mechanism is first presented. In the framework of the CLIC project, a laser wire scanner (LWS) could be used as a non-interfering beam profile measurement both on the Drive Beam for a high current electron beam and on the Main Beam for very small electron beam sizes. A design for a LWS on the CTF2 and CTF3 machines is proposed and some considerations for the use of a LWS on the CLIC main beam are also mentioned.CERN-OPEN-2002-010CERN-PS-BD-NOTE-2001-015CLIC-Note-504oai:cds.cern.ch:5358082002-01-25 |
spellingShingle | Accelerators and Storage Rings Lefèvre, T Laser Wire Scanner: Basic Process and Perspectives for the CTF's and CLIC Machines |
title | Laser Wire Scanner: Basic Process and Perspectives for the CTF's and CLIC Machines |
title_full | Laser Wire Scanner: Basic Process and Perspectives for the CTF's and CLIC Machines |
title_fullStr | Laser Wire Scanner: Basic Process and Perspectives for the CTF's and CLIC Machines |
title_full_unstemmed | Laser Wire Scanner: Basic Process and Perspectives for the CTF's and CLIC Machines |
title_short | Laser Wire Scanner: Basic Process and Perspectives for the CTF's and CLIC Machines |
title_sort | laser wire scanner: basic process and perspectives for the ctf's and clic machines |
topic | Accelerators and Storage Rings |
url | http://cds.cern.ch/record/535808 |
work_keys_str_mv | AT lefevret laserwirescannerbasicprocessandperspectivesforthectfsandclicmachines |