DOE OSTI · 2997167
Rutherford-in-Copper-Channel Conductor for the MARCO Solenoidal Detector Magnet
Abstract
MARCO will be a superconducting solenoid for a new particle physics detector of the upcoming Electron Ion Collider (EIC) at Brookhaven National Laboratory (NY, USA). The design field at the interaction point is 2.0 T with a nominal current of about 4 kA at 4.5 K. For this magnet, an aluminumstabilized conductor was considered at the very preliminary design phase. After that, since the lack of manufacturers able to deal with aluminum extrusion, copper has been chosen as stabilizer. Thanks to a dedicated design effort, the copper stabilizer and accompanying material choices provided acceptable hadronic interaction length. The conductor is based on a NbTi Rutherford cable that is soldered in a U-shaped copper profile. Here, this paper goes through the definition of the conductor crosssection according to the project requirements and the supplier capabilities. Its characteristics will be detailed and discussed, in particular the RRR and the yield strength of the copper channel needed for protection and mechanics respectively. Finally, a proposal on how to make the joint between two conductors is presented.
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Stacchi, Francesco [Commissariat a l'Energie Atomique et aux Energies Alternatives (CEA-Saclay), Gif-sur-Yvette (France). Institut de Recherche sur les Lois Fondamentales de l'Univers (IRFU); Univ. Paris-Saclay, Gif-sur-Yvette (France)] (ORCID:0000000152866875), Berriaud, Christophe [Commissariat a l'Energie Atomique et aux Energies Alternatives (CEA-Saclay), Gif-sur-Yvette (France). Institut de Recherche sur les Lois Fondamentales de l'Univers (IRFU); Univ. Paris-Saclay, Gif-sur-Yvette (France)] (ORCID:0000000313065682), Calvelli, Valerio [Commissariat a l'Energie Atomique et aux Energies Alternatives (CEA-Saclay), Gif-sur-Yvette (France). Institut de Recherche sur les Lois Fondamentales de l'Univers (IRFU); Univ. Paris-Saclay, Gif-sur-Yvette (France)] (ORCID:0000000285567721), Ghoshal, P. [Thomas Jefferson National Accelerator Facility (TJNAF), Newport News, VA (United States)] (ORCID:0000000244416388), Gopinath, S. [Thomas Jefferson National Accelerator Facility (TJNAF), Newport News, VA (United States)] (ORCID:0009000760357051), Juster, Francois-Paul [Commissariat a l'Energie Atomique et aux Energies Alternatives (CEA-Saclay), Gif-sur-Yvette (France). Institut de Recherche sur les Lois Fondamentales de l'Univers (IRFU); Univ. Paris-Saclay, Gif-sur-Yvette (France)] (ORCID:000000026108176X), Lottin, Jean-Pierre [Commissariat a l'Energie Atomique et aux Energies Alternatives (CEA-Saclay), Gif-sur-Yvette (France). Institut de Recherche sur les Lois Fondamentales de l'Univers (IRFU); Univ. Paris-Saclay, Gif-sur-Yvette (France)] (ORCID:0009000802114315), Quettier, Lionel [Commissariat a l'Energie Atomique et aux Energies Alternatives (CEA-Saclay), Gif-sur-Yvette (France). Institut de Recherche sur les Lois Fondamentales de l'Univers (IRFU); Univ. Paris-Saclay, Gif-sur-Yvette (France)] (ORCID:0000000284964055), Reymond, Hugo [Commissariat a l'Energie Atomique et aux Energies Alternatives (CEA-Saclay), Gif-sur-Yvette (France). Institut de Recherche sur les Lois Fondamentales de l'Univers (IRFU); Univ. Paris-Saclay, Gif-sur-Yvette (France)] (ORCID:0009000675797503), Segreti, Michel [Commissariat a l'Energie Atomique et aux Energies Alternatives (CEA-Saclay), Gif-sur-Yvette (France). Institut de Recherche sur les Lois Fondamentales de l'Univers (IRFU); Univ. Paris-Saclay, Gif-sur-Yvette (France)] (ORCID:0000000193340036), Simon, Damien [Commissariat a l'Energie Atomique et aux Energies Alternatives (CEA-Saclay), Gif-sur-Yvette (France). Institut de Recherche sur les Lois Fondamentales de l'Univers (IRFU); Univ. Paris-Saclay, Gif-sur-Yvette (France)] (ORCID:0000000190586698), Sun, Eric [Thomas Jefferson National Accelerator Facility (TJNAF), Newport News, VA (United States)] (ORCID:0000000238234772), Young, D. [Thomas Jefferson National Accelerator Facility (TJNAF), Newport News, VA (United States)], Rajput-Ghoshal, Renuka [Thomas Jefferson National Accelerator Facility (TJNAF), Newport News, VA (United States)] (ORCID:000000018188719X). 2025-09-09. Rutherford-in-Copper-Channel Conductor for the MARCO Solenoidal Detector Magnet. https://doi.org/10.1109/tasc.2025.3607770
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