Evolution of the Secondary Emission Efficiencies of various materials measured in the CERN SPS secondary beam lines

About 180 Secondary Emission Monitors (SEM) are used in the transfer lines to and from the CERN SPS for the measurement of profile, position and intensity of injected and ejected beams. Important changes, up to 50%, in the Secondary Emission Efficiencies (SEE) of Aluminium have been observed in the...

Descripción completa

Detalles Bibliográficos
Autores principales: Ferioli, G, Jung, R
Lenguaje:eng
Publicado: 1997
Materias:
Accelerators and Storage Rings
Acceso en línea:http://cds.cern.ch/record/344272
_version_ 1780891714164097024
author Ferioli, G
Jung, R
author_facet Ferioli, G
Jung, R
author_sort Ferioli, G
collection CERN
description About 180 Secondary Emission Monitors (SEM) are used in the transfer lines to and from the CERN SPS for the measurement of profile, position and intensity of injected and ejected beams. Important changes, up to 50%, in the Secondary Emission Efficiencies (SEE) of Aluminium have been observed in the region of the foil where the beam impinges. Tests have been performed with different types of foils: Aluminium, Titanium, Gold, Gold coated Aluminium and Titanium. The foils have been exposed to a large integrated number of particles, close to 1x1020 p/cm2 over two years, and their SEE measured regularly. The measurements of the long-term variations of the SEE of the various foils are presented.
id cern-344272
institution Organización Europea para la Investigación Nuclear
language eng
publishDate 1997
record_format invenio
spelling cern-3442722023-05-05T13:07:19Zhttp://cds.cern.ch/record/344272engFerioli, GJung, REvolution of the Secondary Emission Efficiencies of various materials measured in the CERN SPS secondary beam linesAccelerators and Storage RingsAbout 180 Secondary Emission Monitors (SEM) are used in the transfer lines to and from the CERN SPS for the measurement of profile, position and intensity of injected and ejected beams. Important changes, up to 50%, in the Secondary Emission Efficiencies (SEE) of Aluminium have been observed in the region of the foil where the beam impinges. Tests have been performed with different types of foils: Aluminium, Titanium, Gold, Gold coated Aluminium and Titanium. The foils have been exposed to a large integrated number of particles, close to 1x1020 p/cm2 over two years, and their SEE measured regularly. The measurements of the long-term variations of the SEE of the various foils are presented.CERN-SL-97-071-BIoai:cds.cern.ch:3442721997
spellingShingle Accelerators and Storage Rings
Ferioli, G
Jung, R
Evolution of the Secondary Emission Efficiencies of various materials measured in the CERN SPS secondary beam lines
title Evolution of the Secondary Emission Efficiencies of various materials measured in the CERN SPS secondary beam lines
title_full Evolution of the Secondary Emission Efficiencies of various materials measured in the CERN SPS secondary beam lines
title_fullStr Evolution of the Secondary Emission Efficiencies of various materials measured in the CERN SPS secondary beam lines
title_full_unstemmed Evolution of the Secondary Emission Efficiencies of various materials measured in the CERN SPS secondary beam lines
title_short Evolution of the Secondary Emission Efficiencies of various materials measured in the CERN SPS secondary beam lines
title_sort evolution of the secondary emission efficiencies of various materials measured in the cern sps secondary beam lines
topic Accelerators and Storage Rings
url http://cds.cern.ch/record/344272
work_keys_str_mv AT feriolig evolutionofthesecondaryemissionefficienciesofvariousmaterialsmeasuredinthecernspssecondarybeamlines
AT jungr evolutionofthesecondaryemissionefficienciesofvariousmaterialsmeasuredinthecernspssecondarybeamlines

Ejemplares similares