Lead shutter for the IFMIF LIPAc accelerator

The International Fusion Materials Irradiation Facility (IFMIF) aims to provide an accelerator-based, D-Li neutron source to produce high energy neutrons at sufficient intensity and irradiation volume for DEMO (Demonstration Fusion Power Plant) materials qualification. As part of the Broader Approac...

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Autores: Nomen, Oriol, Brañas, Beatriz, Ogando, Francisco, Arranz, Fernando, Sauvan, Patrick, Castellanos, Jesús
Tipo de recurso: artículo
Fecha de publicación:2018
País:España
Institución:Centro de Investigaciones Energéticas, Medioambientales y Tecnológicas (CIEMAT)
Repositorio:Docu-menta. Repositorio Institucional del CIEMAT
Idioma:inglés
OAI Identifier:oai:dnet:documenta___::762be39b8b2e263ee3772222739d39b5
Acceso en línea:https://hdl.handle.net/20.500.14855/3501
Access Level:acceso abierto
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spelling Lead shutter for the IFMIF LIPAc acceleratorNomen, OriolBrañas, BeatrizOgando, FranciscoArranz, FernandoSauvan, PatrickCastellanos, JesúsThe International Fusion Materials Irradiation Facility (IFMIF) aims to provide an accelerator-based, D-Li neutron source to produce high energy neutrons at sufficient intensity and irradiation volume for DEMO (Demonstration Fusion Power Plant) materials qualification. As part of the Broader Approach agreement between Japan and EURATOM, the goal of the IFMIF/EVEDA project is to work on the engineering design of IFMIF and to validate the main technological challenges which, among a wide diversity of hardware includes the LIPAc (Linear IFMIF Prototype Accelerator), a 125 mA continuous wave deuteron accelerator up to 9 MeV mainly designed and manufactured in Europe. The LIPAc beam is stopped in a copper cone involving a high production of neutron and gamma radiation and activation of its surface. A lead shutter has been designed to shield against the gamma radiation coming from the copper cone through the beam tube when the beam is off, in order to allow access inside the accelerator vault. The lead shutter is located in a multipurpose chamber that also contains a scraper and two vacuum ports. The function of the scraper is to protect the last part of the beam tube in case of abnormal beams. The requirements imposed on the lead shutter chamber include the motion of the lead shutter to locate it in open (beam on) and closed position (beam off), resistance to the radiation environment, vacuum and leak tightness, alignment capabilities of the scraper and leak tightness of its cooling circuit. In this article the radioprotection calculations demonstrating the shutter performance are presented and the mechanical system of the lead shutter and the layout of the different elements contained in the chamber are described, along with their functionsElsevier. Nuclear Inst. and Methods in Physics Research, A20242024-10-1720182018-06-0120182018-06-01journal articlehttp://purl.org/coar/resource_type/c_6501info:eu-repo/semantics/articleapplication/pdfhttps://hdl.handle.net/20.500.14855/3501reponame:Docu-menta. Repositorio Institucional del CIEMATinstname:Centro de Investigaciones Energéticas, Medioambientales y Tecnológicas (CIEMAT)Inglésengopen accesshttp://purl.org/coar/access_right/c_abf2info:eu-repo/semantics/openAccessoai:dnet:documenta___::762be39b8b2e263ee3772222739d39b52026-06-18T12:40:47Z
dc.title.none.fl_str_mv Lead shutter for the IFMIF LIPAc accelerator
title Lead shutter for the IFMIF LIPAc accelerator
spellingShingle Lead shutter for the IFMIF LIPAc accelerator
Nomen, Oriol
title_short Lead shutter for the IFMIF LIPAc accelerator
title_full Lead shutter for the IFMIF LIPAc accelerator
title_fullStr Lead shutter for the IFMIF LIPAc accelerator
title_full_unstemmed Lead shutter for the IFMIF LIPAc accelerator
title_sort Lead shutter for the IFMIF LIPAc accelerator
dc.creator.none.fl_str_mv Nomen, Oriol
Brañas, Beatriz
Ogando, Francisco
Arranz, Fernando
Sauvan, Patrick
Castellanos, Jesús
author Nomen, Oriol
author_facet Nomen, Oriol
Brañas, Beatriz
Ogando, Francisco
Arranz, Fernando
Sauvan, Patrick
Castellanos, Jesús
author_role author
author2 Brañas, Beatriz
Ogando, Francisco
Arranz, Fernando
Sauvan, Patrick
Castellanos, Jesús
author2_role author
author
author
author
author
dc.contributor.none.fl_str_mv
description The International Fusion Materials Irradiation Facility (IFMIF) aims to provide an accelerator-based, D-Li neutron source to produce high energy neutrons at sufficient intensity and irradiation volume for DEMO (Demonstration Fusion Power Plant) materials qualification. As part of the Broader Approach agreement between Japan and EURATOM, the goal of the IFMIF/EVEDA project is to work on the engineering design of IFMIF and to validate the main technological challenges which, among a wide diversity of hardware includes the LIPAc (Linear IFMIF Prototype Accelerator), a 125 mA continuous wave deuteron accelerator up to 9 MeV mainly designed and manufactured in Europe. The LIPAc beam is stopped in a copper cone involving a high production of neutron and gamma radiation and activation of its surface. A lead shutter has been designed to shield against the gamma radiation coming from the copper cone through the beam tube when the beam is off, in order to allow access inside the accelerator vault. The lead shutter is located in a multipurpose chamber that also contains a scraper and two vacuum ports. The function of the scraper is to protect the last part of the beam tube in case of abnormal beams. The requirements imposed on the lead shutter chamber include the motion of the lead shutter to locate it in open (beam on) and closed position (beam off), resistance to the radiation environment, vacuum and leak tightness, alignment capabilities of the scraper and leak tightness of its cooling circuit. In this article the radioprotection calculations demonstrating the shutter performance are presented and the mechanical system of the lead shutter and the layout of the different elements contained in the chamber are described, along with their functions
publishDate 2018
dc.date.none.fl_str_mv 2018
2018-06-01
2018
2018-06-01
2024
2024-10-17
dc.type.none.fl_str_mv journal article
http://purl.org/coar/resource_type/c_6501
dc.type.openaire.fl_str_mv info:eu-repo/semantics/article
format article
dc.identifier.none.fl_str_mv https://hdl.handle.net/20.500.14855/3501
url https://hdl.handle.net/20.500.14855/3501
dc.language.none.fl_str_mv Inglés
eng
language_invalid_str_mv Inglés
language eng
dc.rights.none.fl_str_mv open access
http://purl.org/coar/access_right/c_abf2
dc.rights.openaire.fl_str_mv info:eu-repo/semantics/openAccess
rights_invalid_str_mv open access
http://purl.org/coar/access_right/c_abf2
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Elsevier. Nuclear Inst. and Methods in Physics Research, A
publisher.none.fl_str_mv Elsevier. Nuclear Inst. and Methods in Physics Research, A
dc.source.none.fl_str_mv reponame:Docu-menta. Repositorio Institucional del CIEMAT
instname:Centro de Investigaciones Energéticas, Medioambientales y Tecnológicas (CIEMAT)
instname_str Centro de Investigaciones Energéticas, Medioambientales y Tecnológicas (CIEMAT)
reponame_str Docu-menta. Repositorio Institucional del CIEMAT
collection Docu-menta. Repositorio Institucional del CIEMAT
repository.name.fl_str_mv
repository.mail.fl_str_mv
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