Design and Manufacture of the Conduction Cooled Torus Coils for The Jefferson Laboratory 12-GeV Upgrade

Conference · Thu Jan 01 00:00:00 EST 2015 · IEEE Trans.Appl.Supercond.

DOI:https://doi.org/10.1109/TASC.2014.2376964· OSTI ID:1247496

Wiseman, M. ^[1]; Elementi, L. ^[2]; Elouadhiri, L. ^[1]; Gabrielli, G. ^[2]; Gardner, T. J. ^[2]; Ghoshal, P. K. ^[1]; Kashy, D. ^[1]; Kiemschies, O. ^[2]; Krave, S. ^[2]; Makarov, A. ^[2]; Robotham, B. ^[2]; Szal, J. ^[2]; Velev, G. ^[2]

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1. Jefferson Lab
2. Fermilab

The design of the 12-GeV torus required the construction of six superconducting coils with a unique geometry required for the experimental needs of Jefferson Laboratory Hall B. Each of these coils consists of 234 turns of copper-stabilized superconducting cable conduction cooled by 4.6 K helium gas. The finished coils are each roughly 2 × 4 × 0.05 m and supported in an aluminum coil case. Because of its geometry, new tooling and manufacturing methods had to be developed for each stage of construction. The tooling was designed and developed while producing a practice coil at Fermi National Laboratory. This paper describes the tooling and manufacturing techniques required to produce the six production coils and two spare coils required by the project. Project status and future plans are also presented.

• Research Organization: Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States); Thomas Jefferson National Accelerator Facility (TJNAF), Newport News, VA (United States)
• Sponsoring Organization: USDOE Office of Science (SC), High Energy Physics (HEP)
• DOE Contract Number: AC02-07CH11359
• OSTI ID: 1247496
• Report Number(s): JLAB-ACE-14-1939; FERMILAB-CONF-14-572-TD; 1369232
• Journal Information: IEEE Trans.Appl.Supercond., Vol. 25, Issue 3; Conference: Applied Superconductivity Conference, Charlotte, NC, USA, 08/10-08/15/2014
• Country of Publication: United States
• Language: English

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