Field Quality Measurements of LARP $\hbox{Nb}_{3} \hbox{Sn}$
| Autor: | Joseph DiMarco, R.R. Hafalia, J. Lizarazo, G.L. Sabbi, Giorgio Ambrosio, Jesse Schmalzle, Maxim Marchevsky, Helene Felice, Arno Godeke, A. Salehi, Soren Prestemon, A.K. Ghosh, Paolo Ferracin, Alexander V. Zlobin, J. M. Joseph, M. Yu, M.A. Tartaglia, P. Wanderer, Xiaorong Wang, G.V. Velev, Guram Chlachidze, M. Buehler, D.F. Orris, Ezio Todesco, C. Sylvester, Daniel W. Cheng, F. Borgnolutti, D.R. Dietderich |
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| Rok vydání: | 2014 |
| Předmět: |
Physics
Large Hadron Collider Physics::Instrumentation and Detectors Aperture Nuclear engineering Superconducting magnet Condensed Matter Physics Electronic Optical and Magnetic Materials law.invention chemistry.chemical_compound Nuclear magnetic resonance chemistry law Electromagnetic coil Magnet Eddy current Physics::Accelerator Physics Fermilab Electrical and Electronic Engineering Niobium-tin |
| Zdroj: | IEEE Transactions on Applied Superconductivity. 24:1-5 |
| ISSN: | 1558-2515 1051-8223 |
| DOI: | 10.1109/tasc.2013.2291557 |
| Popis: | Large-aperture, high-field, Nb3Sn quadrupoles are being developed by the U.S. LHC accelerator research program (LARP) for the High luminosity upgrade of the Large Hadron Collider (HiLumi-LHC). The first 1 m long, 120 mm aperture prototype, HQ01, was assembled with various sets of coils and tested at LBNL and CERN. Based on these results, several design modifications have been introduced to improve the performance for HQ02, the latest model. From the field quality perspective, the most relevant improvements are a cored cable for reduction of eddy current effects, and more uniform coil components and fabrication processes. This paper reports on the magnetic measurements of HQ02 during recent testing at the Vertical Magnet Test Facility at Fermilab. Results of baseline measurements performed with a new multilayer circuit board probe are compared with the earlier magnet. An analysis of probe and measurement system performance is also presented. |
| Databáze: | OpenAIRE |
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