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Design of an interaction region with head-on collisions for the ILC

An interaction region (IR) with head-on collisions is considered as an alternative to the baseline configuration of the International Linear Collider (ILC) which includes two IRs with finite crossing-angles (2 and 20 mrad). Although more challenging for the beam extraction, the head-on scheme is fav...

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Detalles Bibliográficos
Autores principales: Appleby, R, Angal-Kalinin, Deepa, Jackson, F, Alabau-Pons, M, Bambade, P, Brossard, J, Dadoun, O, Rimbault, C, Keller, L, Nosochkov, Y, Seryi, Andrei, Payet, J, Napoly, O, Rippon, C, Uriot, D
Lenguaje:eng
Publicado: 2006
Materias:
Acceso en línea:http://cds.cern.ch/record/986628
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author Appleby, R
Angal-Kalinin, Deepa
Jackson, F
Alabau-Pons, M
Bambade, P
Brossard, J
Dadoun, O
Rimbault, C
Keller, L
Nosochkov, Y
Seryi, Andrei
Payet, J
Napoly, O
Rippon, C
Uriot, D
author_facet Appleby, R
Angal-Kalinin, Deepa
Jackson, F
Alabau-Pons, M
Bambade, P
Brossard, J
Dadoun, O
Rimbault, C
Keller, L
Nosochkov, Y
Seryi, Andrei
Payet, J
Napoly, O
Rippon, C
Uriot, D
author_sort Appleby, R
collection CERN
description An interaction region (IR) with head-on collisions is considered as an alternative to the baseline configuration of the International Linear Collider (ILC) which includes two IRs with finite crossing-angles (2 and 20 mrad). Although more challenging for the beam extraction, the head-on scheme is favoured by the experiments because it allows a more convenient detector configuration, particularly in the forward region. The optics of the head-on extraction is revisited by separating the e+ and e- beams horizontally, first by electrostatic separators operated at their LEP nominal field and then using a defocusing quadrupole of the final focus beam line. In this way the septum magnet is protected from the beamstrahlung power. Newly optimized final focus and extraction optics are presented, including a first look at post-collision diagnostics. The influence of parasitic collisions is shown to lead to a region of stable collision parameters. Disrupted beam and beamstrahlung photon losses are calculated along the extraction elements.
id cern-986628
institution Organización Europea para la Investigación Nuclear
language eng
publishDate 2006
record_format invenio
spelling cern-9866282019-09-30T06:29:59Zhttp://cds.cern.ch/record/986628engAppleby, RAngal-Kalinin, DeepaJackson, FAlabau-Pons, MBambade, PBrossard, JDadoun, ORimbault, CKeller, LNosochkov, YSeryi, AndreiPayet, JNapoly, ORippon, CUriot, DDesign of an interaction region with head-on collisions for the ILCOther Fields of PhysicsAn interaction region (IR) with head-on collisions is considered as an alternative to the baseline configuration of the International Linear Collider (ILC) which includes two IRs with finite crossing-angles (2 and 20 mrad). Although more challenging for the beam extraction, the head-on scheme is favoured by the experiments because it allows a more convenient detector configuration, particularly in the forward region. The optics of the head-on extraction is revisited by separating the e+ and e- beams horizontally, first by electrostatic separators operated at their LEP nominal field and then using a defocusing quadrupole of the final focus beam line. In this way the septum magnet is protected from the beamstrahlung power. Newly optimized final focus and extraction optics are presented, including a first look at post-collision diagnostics. The influence of parasitic collisions is shown to lead to a region of stable collision parameters. Disrupted beam and beamstrahlung photon losses are calculated along the extraction elements.physics/0609248EUROTEV-REPORT-2006-083LAL-RT-2006-09oai:cds.cern.ch:9866282006-09-28
spellingShingle Other Fields of Physics
Appleby, R
Angal-Kalinin, Deepa
Jackson, F
Alabau-Pons, M
Bambade, P
Brossard, J
Dadoun, O
Rimbault, C
Keller, L
Nosochkov, Y
Seryi, Andrei
Payet, J
Napoly, O
Rippon, C
Uriot, D
Design of an interaction region with head-on collisions for the ILC
title Design of an interaction region with head-on collisions for the ILC
title_full Design of an interaction region with head-on collisions for the ILC
title_fullStr Design of an interaction region with head-on collisions for the ILC
title_full_unstemmed Design of an interaction region with head-on collisions for the ILC
title_short Design of an interaction region with head-on collisions for the ILC
title_sort design of an interaction region with head-on collisions for the ilc
topic Other Fields of Physics
url http://cds.cern.ch/record/986628
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