CERN Accelerating science

Article
Report number	arXiv:2203.07799
Title	Superconducting detector magnets for high energy physics
Author(s)	Mentink, Matthias (CERN) ; Sasaki, Ken-ichi (KEK, Tsukuba) ; Cure, Benoit (CERN) ; Deelen, Nikkie (CERN) ; Dudarev, Alexey (CERN) ; Abe, Mitsushi (KEK, Tsukuba) ; Iio, Masami (KEK, Tsukuba) ; Makida, Yasuhiro (KEK, Tsukuba) ; Okamura, Takahiro (KEK, Tsukuba) ; Ogitsu, Toru (KEK, Tsukuba) ; Sumi, Naoyuki (KEK, Tsukuba) ; Yamamoto, Akira (CERN ; KEK, Tsukuba) ; Yoshida, Makoto (KEK, Tsukuba) ; Iinuma, Hiromi (Ibaraki U., Mito (main))
Publication	2023-06-29
Imprint	2022-03-15
Number of pages	38
Note	35 pages, 35 figures, 8 tables, contribution to Snowmass 2021
In:	JINST 18, 06 (2023) pp.T06013
In:	2021 Snowmass Summer Study, Seattle, WA, United States, 11 - 20 July 2021, pp.T06013
DOI	10.1088/1748-0221/18/06/T06013
Subject category	physics.acc-ph ; Accelerators and Storage Rings ; physics.ins-det ; Detectors and Experimental Techniques
Abstract	Various superconducting detector solenoids for particle physics have been developed in the world. The key technology is the aluminum-stabilized superconducting conductor for almost all the detector magnets in particle physics experiments. With the progress of the conductor, the coil fabrication technology has progressed as well, such as the inner coil winding technique, indirect cooling, transparent vacuum vessel, quench protection scheme using pure aluminum strips and so on. The detector solenoids design study is in progress for future big projects in Japan and Europe, that is, ILC, FCC and CLIC, based on the technologies established over many years. The combination of good mechanical properties and keeping a high RRR is a key point for the development of Al-stabilized conductor. The present concern for the detector solenoid development is to have been gradually losing the key technologies and experiences, because large-scale detector magnets with Al-stabilized conductor has not been fabricated after the success of CMS and ATLAS-CS in LHC. Complementary efforts are needed to resume an equivalent level of expertise, to extend the effort on research and to develop these technologies and apply them to future detector magnet projects. Especially, further effort is necessary for the industrial technology of Al-stabilized superconductor production. The worldwide collaboration with relevant institutes and industries will be critically important to re-realize and validate the required performances. Some detector solenoids for mid-scale experiment wound with conventional copper-stabilized Nb-Ti conductor require precise control of magnetic field distribution. The development efforts are on-going in terms of the magnetic field design technology with high precision simulation, coil fabrication technology and control method of magnetic field distribution.
Copyright/License	preprint: (License: arXiv nonexclusive-distrib 1.0) publication: © 2023-2024 CERN (License: CC-BY-4.0)

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