Iseult-NeuroSpin 1500 A Currents Leads: Conceptual and Experimental Results

In the framework of the French-German project Iseult, we chose to design the 4.5 K vapor cooled current leads of the 11.75 T MRI magnet using a burn-proof approach, i.e., they are able to withstand a 3-h current slow dump without any active cooling. This constraint led us to select brass instead of...

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Published in:IEEE transactions on applied superconductivity 2018-04, Vol.28 (3), p.1-4
Main Authors: Juster, Francois Paul, Berriaud, Christophe, Bouziat, Denis, Bredy, Philippe, Lannou, Herve, Quettier, Lionel, Schild, Thierry, Stepanov, Vadim
Format: Article
Language:English
Subjects:
brass
burn-proof
Copper
Cryogenics
Currents leads
Electron tubes
fault scenario
Heating systems
Helium
Lead
NeuroSpin
slow dump
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container_title IEEE transactions on applied superconductivity
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creator Juster, Francois Paul
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description In the framework of the French-German project Iseult, we chose to design the 4.5 K vapor cooled current leads of the 11.75 T MRI magnet using a burn-proof approach, i.e., they are able to withstand a 3-h current slow dump without any active cooling. This constraint led us to select brass instead of pure copper, resulting in higher mass and thus in higher thermal stability. The drawback is a slightly higher cryogenic consumption. We present here the design studies of those current leads and compare their theoretical characteristics with the experimental results obtained during the test campaigns at CEA-Saclay.
doi_str_mv 10.1109/TASC.2017.2785830
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subjects brass
burn-proof
Copper
Cryogenics
Currents leads
Electron tubes
fault scenario
Heating systems
Helium
Lead
NeuroSpin
slow dump
title Iseult-NeuroSpin 1500 A Currents Leads: Conceptual and Experimental Results
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