CERN Accelerating science

Article
Report number	arXiv:1607.05446 ; IPAC-2016-THPOR023 ; THPOR023 ; THPOR023 ; CERN-ACC-2016-322
Title	The FCC-ee Interaction Region Magnet Design
Related title	The FCC-ee Interaction Region Magnet Design
Author(s)	Koratzinos, Michael (Geneva U.) ; Benedikt, Michael (CERN) ; Blondel, Alain (Geneva U.) ; Bogomyagkov, Anton (Novosibirsk, IYF) ; Holzer, Bernhard (CERN) ; Oide, Katsunobu (KEK, Tsukuba) ; Sinyatkin, Sergey (Novosibirsk, IYF) ; Zimmermann, Frank (CERN) ; van Nugteren, Jeroen (CERN)
Publication	2016
Imprint	19 Jul 2016
Number of pages	4
Note	Comments: Poster presented at IPAC16, May 8-13, Busan, Korea Poster presented at IPAC16, May 8-13, Busan, Korea
In:	7th International Particle Accelerator Conference, Busan, Korea, 8 - 13 May 2016, pp.THPOR023
DOI	10.18429/JACoW-IPAC2016-THPOR023
Subject category	Accelerators and Storage Rings
Abstract	The design of the region close to the interaction point of the FCC-ee experiments is especially challenging. The beams collide at an angle (+-15 mrad) in the high-field region of the detector solenoid. Moreover, the very low vertical beta_y* of the machine necessitates that the final focusing quadrupoles have a distance from the IP (L*) of around 2 m and therefore are inside the main detector solenoid. The beams should be screened from the effect of the detector magnetic field, and the emittance blow-up due to vertical dispersion in the interaction region should be minimized, while leaving enough space for detector components. Crosstalk between the two final focus quadrupoles, only about 6 cm apart at the tip, should also be minimized.
Copyright/License	arXiv nonexclusive-distrib. 1.0 publication: © 2016-2024 The Author(s) (License: CC-BY-3.0)

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