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Persistent URL http://purl.org/net/epubs/work/43983
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Record Id 43983
Title Design of an interaction region with head-on collisions for the ILC
Abstract 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 headon extraction is revisited by separating the e+ and ebeams 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.
Organisation CCLRC , ASTeC-AP , CI
Keywords Physics
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Language English (EN)
Type Details URI(s) Local file(s) Year
Report CI Preprints 06-14. 2006. Cockcroft-06-14.pdf 2006
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