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This work was supported by the Spanish Ministry of Science, Innovation and Universities R&D Program 2020 under Grant PID2020-120582GB-I00.
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Duran, OAuthorConceptual Design of a Conduction-Cooled Superconducting Quadrupole for ILC Main Linac With Large Temperature Margin
Publicated to:Ieee Transactions On Applied Superconductivity. 35 (5): 4003605- - 2025-08-01 35(5), DOI: 10.1109/TASC.2025.3549412
Authors: Duran, O; Garcia-Tabares, L; Gonzalez, L A; Toral, F; Arimoto, Y; Yamada, T; Yamamoto, A
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Abstract
The International Linear Collider (ILC) Main Linac consists of a series of cryomodules, one third of which are composed by eight 9-cell superconducting RF (SRF) cavities and a superconducting quadrupole (SCQ) package. The electrons and positrons are focused by the quadrupole and steered by the two dipoles included in the SCQ magnet. Large expected dark currents are originated at the SRF cavities and deposit energy at the SCQ. The superconductor in the coils should not surpass its critical temperature before that heat deposition is evacuated.This paper depicts the SCQ electromagnetic design proposed by CIEMAT. Several superconductors were analysed and compared. Nb3Sn wire was selected for the quadrupole coils relying on the large temperature margin for the absorption in the superconducting coils of the heat deposition from the dark currents. The magnet cross-section has been carefully optimized for the HE type of the SCQ magnet to achieve a good field quality and superconductor efficiency in spite of the expected iron saturation. The dipole coils were protected from the heat deposition, enabling the election of Nb-Ti wire. The longitudinal space has been defined with an electromagnetic 3D model.
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Bibliometric impact. Analysis of the contribution and dissemination channel
The work has been published in the journal Ieee Transactions On Applied Superconductivity due to its progression and the good impact it has achieved in recent years, according to the agency Scopus (SJR), it has become a reference in its field. In the year of publication of the work, 2025, it was in position , thus managing to position itself as a Q2 (Segundo Cuartil), in the category . Notably, the journal is positioned en el Cuartil Q3 for the agency WoS (JCR) in the category Physics, Applied.
Leadership analysis of institutional authors
This work has been carried out with international collaboration, specifically with researchers from: Japan.
There is a significant leadership presence as some of the institution’s authors appear as the first or last signer, detailed as follows: First Author (DURAN LUCAS, OSCAR) .