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Development of an ion transport system for singly charged ion injection into an electron string ion source (ESIS) charge-breeder

A 1+ ion delivery system was designed and constructed for the purpose of ion injection into the Electron String Ion Source (ESIS) charge-breeder at the Joint Institute for Nuclear Research (JINR) in Dubna, Russia. The transport system was initially developed at iThemba LABS in Cape Town. This system...

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Main Author: Segal, Matthew
Other Authors: Peterson, Steve
Format: Thesis
Language:English
Published: Department of Physics 2021
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Physics
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access_status_str Open Access
author Segal, Matthew
author2 Peterson, Steve
author_browse Peterson, Steve
Segal, Matthew
author_facet Peterson, Steve
Segal, Matthew
author_sort Segal, Matthew
collection Thesis
description A 1+ ion delivery system was designed and constructed for the purpose of ion injection into the Electron String Ion Source (ESIS) charge-breeder at the Joint Institute for Nuclear Research (JINR) in Dubna, Russia. The transport system was initially developed at iThemba LABS in Cape Town. This system includes a Liquid Metal Ion Source (LMIS) and an ion extraction and focusing system. The ion delivery system is used to produce Ga+ and Au+ ions which are transported through a beam-line system consisting of charged particle optics such as focusing einzel-lenses, an electrical quadrupole switchyard for 90◦ beam bending, and subsequent correction and focusing lenses before the entry port into the ESIS. A replica of the full system was created and used to study injection and ion transport efficiency before implementation with the ESIS. A multi-wire harp beam profilometer was used to study ion beam profiles and to obtain geometric parameters of Ga+ beams. Ga+ injection into the KRION 6T ESIS was performed successfully using the ion injection system. The extraction of multiply charged gallium was successful after 1+ injection into the KRION 6T ESIS, with a maximum charge-state of 23+. Although 1+ to n+ injection has been performed with similar Electron Beam Ion Source (EBIS) devices, this work is the first case of 1+ to n+ injection using the ESIS. This research was conducted within the frame-work of the South Africa/JINR collaboration and has been funded by the National Research Foundation (NRF).
format Thesis
id oai:open.uct.ac.za:11427/33024
institution University of Cape Town (South Africa)
language eng
last_indexed 2026-06-10T12:34:36.552Z
license_str Not specified — see source repository
provenance_str_mv Harvested via OAI-PMH from UCTD — University of Cape Town Open Access Repository
publishDate 2021
publishDateRange 2021
publishDateSort 2021
publisher Department of Physics
publisherStr Department of Physics
record_format dspace
source_str UCTD — University of Cape Town Open Access Repository
spelling oai:open.uct.ac.za:11427/33024 Development of an ion transport system for singly charged ion injection into an electron string ion source (ESIS) charge-breeder Segal, Matthew Peterson, Steve Physics A 1+ ion delivery system was designed and constructed for the purpose of ion injection into the Electron String Ion Source (ESIS) charge-breeder at the Joint Institute for Nuclear Research (JINR) in Dubna, Russia. The transport system was initially developed at iThemba LABS in Cape Town. This system includes a Liquid Metal Ion Source (LMIS) and an ion extraction and focusing system. The ion delivery system is used to produce Ga+ and Au+ ions which are transported through a beam-line system consisting of charged particle optics such as focusing einzel-lenses, an electrical quadrupole switchyard for 90◦ beam bending, and subsequent correction and focusing lenses before the entry port into the ESIS. A replica of the full system was created and used to study injection and ion transport efficiency before implementation with the ESIS. A multi-wire harp beam profilometer was used to study ion beam profiles and to obtain geometric parameters of Ga+ beams. Ga+ injection into the KRION 6T ESIS was performed successfully using the ion injection system. The extraction of multiply charged gallium was successful after 1+ injection into the KRION 6T ESIS, with a maximum charge-state of 23+. Although 1+ to n+ injection has been performed with similar Electron Beam Ion Source (EBIS) devices, this work is the first case of 1+ to n+ injection using the ESIS. This research was conducted within the frame-work of the South Africa/JINR collaboration and has been funded by the National Research Foundation (NRF). 2021-03-01T05:16:45Z 2021-03-01T05:16:45Z 2020 2021-02-26T17:00:41Z Doctoral Thesis Doctoral PhD http://hdl.handle.net/11427/33024 eng application/pdf Department of Physics Faculty of Science
spellingShingle Physics
Segal, Matthew
Development of an ion transport system for singly charged ion injection into an electron string ion source (ESIS) charge-breeder
thesis_degree_str Doctoral
title Development of an ion transport system for singly charged ion injection into an electron string ion source (ESIS) charge-breeder
title_full Development of an ion transport system for singly charged ion injection into an electron string ion source (ESIS) charge-breeder
title_fullStr Development of an ion transport system for singly charged ion injection into an electron string ion source (ESIS) charge-breeder
title_full_unstemmed Development of an ion transport system for singly charged ion injection into an electron string ion source (ESIS) charge-breeder
title_short Development of an ion transport system for singly charged ion injection into an electron string ion source (ESIS) charge-breeder
title_sort development of an ion transport system for singly charged ion injection into an electron string ion source esis charge breeder
topic Physics
url http://hdl.handle.net/11427/33024
work_keys_str_mv AT segalmatthew developmentofaniontransportsystemforsinglychargedioninjectionintoanelectronstringionsourceesischargebreeder

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