Cargando…

Gas dynamics considerations in a non-invasive profile monitor for charged particle beams

A non-invasive, gas jet-based, beam profile monitor has been developed in the QUASAR Group at the Cockcroft Institute, UK. This allows on-line measurement of the 2-dimensional transverse profile of particle beams with negligible disturbance to either primary beam or accelerator vacuum. The monitor i...

Descripción completa

Detalles Bibliográficos
Autores principales: Tzoganis, Vasilis, Jeff, Adam, Welsch, Carsten P
Lenguaje:eng
Publicado: 2014
Materias:
XX
Acceso en línea:https://dx.doi.org/10.1016/j.vacuum.2014.07.009
http://cds.cern.ch/record/2120651
_version_ 1780949331579240448
author Tzoganis, Vasilis
Jeff, Adam
Welsch, Carsten P
author_facet Tzoganis, Vasilis
Jeff, Adam
Welsch, Carsten P
author_sort Tzoganis, Vasilis
collection CERN
description A non-invasive, gas jet-based, beam profile monitor has been developed in the QUASAR Group at the Cockcroft Institute, UK. This allows on-line measurement of the 2-dimensional transverse profile of particle beams with negligible disturbance to either primary beam or accelerator vacuum. The monitor is suitable for use with beams across a wide range of energies and intensities. In this setup a nozzle-skimmer system shapes a thin supersonic gas jet into a curtain. However, the small dimensions of the gas inlet nozzle and subsequent skimmers were shown to be the cause of many operational problems. In this paper, the dynamics of gas jet formation transport and shaping is discussed before an image-processing based alignment technique is introduced. Furthermore, experimental results obtained with a 5 keV electron beam are discussed and the effects of gas stagnation pressure on the acquired beam are presented.
id cern-2120651
institution Organización Europea para la Investigación Nuclear
language eng
publishDate 2014
record_format invenio
spelling cern-21206512019-09-30T06:29:59Zdoi:10.1016/j.vacuum.2014.07.009http://cds.cern.ch/record/2120651engTzoganis, VasilisJeff, AdamWelsch, Carsten PGas dynamics considerations in a non-invasive profile monitor for charged particle beamsXXA non-invasive, gas jet-based, beam profile monitor has been developed in the QUASAR Group at the Cockcroft Institute, UK. This allows on-line measurement of the 2-dimensional transverse profile of particle beams with negligible disturbance to either primary beam or accelerator vacuum. The monitor is suitable for use with beams across a wide range of energies and intensities. In this setup a nozzle-skimmer system shapes a thin supersonic gas jet into a curtain. However, the small dimensions of the gas inlet nozzle and subsequent skimmers were shown to be the cause of many operational problems. In this paper, the dynamics of gas jet formation transport and shaping is discussed before an image-processing based alignment technique is introduced. Furthermore, experimental results obtained with a 5 keV electron beam are discussed and the effects of gas stagnation pressure on the acquired beam are presented.oai:cds.cern.ch:21206512014
spellingShingle XX
Tzoganis, Vasilis
Jeff, Adam
Welsch, Carsten P
Gas dynamics considerations in a non-invasive profile monitor for charged particle beams
title Gas dynamics considerations in a non-invasive profile monitor for charged particle beams
title_full Gas dynamics considerations in a non-invasive profile monitor for charged particle beams
title_fullStr Gas dynamics considerations in a non-invasive profile monitor for charged particle beams
title_full_unstemmed Gas dynamics considerations in a non-invasive profile monitor for charged particle beams
title_short Gas dynamics considerations in a non-invasive profile monitor for charged particle beams
title_sort gas dynamics considerations in a non-invasive profile monitor for charged particle beams
topic XX
url https://dx.doi.org/10.1016/j.vacuum.2014.07.009
http://cds.cern.ch/record/2120651
work_keys_str_mv AT tzoganisvasilis gasdynamicsconsiderationsinanoninvasiveprofilemonitorforchargedparticlebeams
AT jeffadam gasdynamicsconsiderationsinanoninvasiveprofilemonitorforchargedparticlebeams
AT welschcarstenp gasdynamicsconsiderationsinanoninvasiveprofilemonitorforchargedparticlebeams