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Report number	FERMILAB-PUB-08-309-TD
Title	Fabrication and test of LARP technological quadrupole models of TQC series
Author(s)	Bossert, Rodger C (Fermilab) ; Ambrosio, Giorgio (Fermilab) ; Andreev, Nikolai (Fermilab) ; Barzi, Emanuela (Fermilab) ; Chlachidze, Guram (Fermilab) ; Feher, Sandor (Fermilab) ; Kashikhin, Vladimir S (Fermilab) ; Kashikhin, Vadim V (Fermilab) ; Lamm, Michael (Fermilab) ; Nobrega, Alfred (Fermilab) ; Novitski, Igor (Fermilab) ; Orris, Darryl (Fermilab) ; Tartaglia, Michael (Fermilab) ; Zlobin, Alexander V (Fermilab) ; Caspi, Shlomo (LBL, Berkeley) ; Dietderich, Daniel R (LBL, Berkeley) ; Ferracin, Paolo (LBL, Berkeley) ; Hafalia, A R (LBL, Berkeley) ; Sabbi, GianLuca (LBL, Berkeley) ; Ghosh, Arup (Brookhaven) ; Wanderer, Peter (Brookhaven)
Publication	2009
Imprint	2008-08
Number of pages	5
In:	IEEE Trans. Appl. Supercond. 19 (2009) 1226-1230
In:	Applied Superconductivity Conference 2008, Chicago, IL, USA, 17 - 22 Aug 2008, pp.1226-1230
DOI	10.1109/TASC.2009.2019104
Subject category	Accelerators and Storage Rings
Accelerator/Facility, Experiment	LARP CERN LHC
Project	CERN HL-LHC
Abstract	In support of the development of a large-aperture Nb$_3$Sn superconducting quadrupole for the Large Hadron Collider (LHC) luminosity upgrade, several two-layer technological quadrupole models of TQC series with 90 mm aperture and collar-based mechanical structure have been developed at Fermilab in collaboration with LBNL. This paper summarizes the results of fabrication and test of TQC02a, the second TQC model based on RRP Nb3Sn strand, and TQC02b, built with both MJR and RRP strand. The test results presented include magnet strain and quench performance during training, as well as quench studies of current ramp rate and temperature dependence from 1.9 K to 4.5 K.
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