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Impact of the new CLIC beam parameters on the design of the post-collision line and its exit window
Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Physics, Department of Physics and Astronomy. (high energy physics)
2008 (English)Report (Other academic)
Abstract [en]

Following the recent modification of the CLIC beam parameters, we present an updated design of the post-collision line. As a result of the increase of the beamstrahlung photon cone size, the separation of the outgoing beams by the vertical magnetic chicane is more difficult, but still possible. The main changes in the post-collision line design include the implementation of a common dump for the wrong-sign charged particles of the coherent pairs and for the low-energy tails of the disrupted beam, as well as a significant reduction of the overall lattice length (allowing removal of the large refocusing quadrupoles). The thermal and mechanical stresses in the new exit window, 150 m downstream of the interaction point, were computed. We conclude that, despite the recent changes of the CLIC beam parameters and the necessary modifications of the post-collision line and its exit window, their performance is not significantly affected.

Place, publisher, year, edition, pages
Geneva, Switzerland: CERN , 2008. , 25 p.
Series
CLIC Note, 739
National Category
Physical Sciences
Research subject
Physics
Identifiers
URN: urn:nbn:se:uu:diva-87699OAI: oai:DiVA.org:uu-87699DiVA: diva2:133221
Projects
EUROTeVCLIC
Available from: 2009-01-08 Created: 2009-01-08 Last updated: 2009-01-09Bibliographically approved

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