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Title: Test Result of the Short Models MQXFS3 and MQXFS5 for the HL-LHC Upgrade

In the framework of the High-Luminosity Large Hadron Collider, the installation of a new generation of quadrupole magnets is foreseen on each side of ATLAS and CMS experiments. The new magnets are based on Nb$$_{3}$$Sn technology and shall be able to reach an ultimate current of 17.9 kA with a peak field of 12.3 T in the coil. In 2016 and 2017, the first two short models, called MQXFS3 and MQXFS5, have been tested at 4.2 and 1.9 K in the two new test benches at the European Organization for Nuclear Research. This paper presents the result of the quench performance of the two models; the first magnet reached nominal but failed to reach ultimate, showing detraining in one coil. MQXFS5 reached ultimate performance without any detraining phenomena, validating the PIT conductor used for the first time in this magnet program.
Authors:
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  1. European Organization for Nuclear Research (Switzerland)
  2. Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States)
  3. Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
  4. Brookhaven National Lab. (BNL), Upton, NY (United States)
Publication Date:
Report Number(s):
FERMILAB-PUB-18-094-TD
Journal ID: ISSN 1051-8223; 1663921
Grant/Contract Number:
AC02-07CH11359
Type:
Accepted Manuscript
Journal Name:
IEEE Transactions on Applied Superconductivity
Additional Journal Information:
Journal Volume: 28; Journal Issue: 3; Journal ID: ISSN 1051-8223
Publisher:
Institute of Electrical and Electronics Engineers (IEEE)
Research Org:
Brookhaven National Laboratory (BNL), Upton, NY (United States); Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States)
Sponsoring Org:
USDOE Office of Science (SC), High Energy Physics (HEP) (SC-25)
Country of Publication:
United States
Language:
English
Subject:
43 PARTICLE ACCELERATORS; high luminosity LHC; interaction regions; low-β quadrupoles
OSTI Identifier:
1436716

Bajas, Hugues, Ambrosio, Giorgio, Ballarino, A., Bajko, Marta, Bordini, B., Bourcey, N., Cheng, D. W., Cabon, M., Chiuchiolo, A., Chlachidze, G., Felice, H., Fiscarelli, L., Juchno, M., Bermudez, Susana Izquierdo, Guinchard, M., Kopal, J., Lackner, F., Marchevsky, M., Nobrega, F., Pan, H., Perez, J. C., Prin, H., Ravaioli, E., Rossi, L., Sabbi, G., Tavares, S. Sequeira, Steckert, J., Stoynev, S., Todesco, Ezio, Vallone, G., Wanderer, P., Wang, X., and Yu, M.. Test Result of the Short Models MQXFS3 and MQXFS5 for the HL-LHC Upgrade. United States: N. p., Web. doi:10.1109/TASC.2018.2810100.
Bajas, Hugues, Ambrosio, Giorgio, Ballarino, A., Bajko, Marta, Bordini, B., Bourcey, N., Cheng, D. W., Cabon, M., Chiuchiolo, A., Chlachidze, G., Felice, H., Fiscarelli, L., Juchno, M., Bermudez, Susana Izquierdo, Guinchard, M., Kopal, J., Lackner, F., Marchevsky, M., Nobrega, F., Pan, H., Perez, J. C., Prin, H., Ravaioli, E., Rossi, L., Sabbi, G., Tavares, S. Sequeira, Steckert, J., Stoynev, S., Todesco, Ezio, Vallone, G., Wanderer, P., Wang, X., & Yu, M.. Test Result of the Short Models MQXFS3 and MQXFS5 for the HL-LHC Upgrade. United States. doi:10.1109/TASC.2018.2810100.
Bajas, Hugues, Ambrosio, Giorgio, Ballarino, A., Bajko, Marta, Bordini, B., Bourcey, N., Cheng, D. W., Cabon, M., Chiuchiolo, A., Chlachidze, G., Felice, H., Fiscarelli, L., Juchno, M., Bermudez, Susana Izquierdo, Guinchard, M., Kopal, J., Lackner, F., Marchevsky, M., Nobrega, F., Pan, H., Perez, J. C., Prin, H., Ravaioli, E., Rossi, L., Sabbi, G., Tavares, S. Sequeira, Steckert, J., Stoynev, S., Todesco, Ezio, Vallone, G., Wanderer, P., Wang, X., and Yu, M.. 2018. "Test Result of the Short Models MQXFS3 and MQXFS5 for the HL-LHC Upgrade". United States. doi:10.1109/TASC.2018.2810100.
@article{osti_1436716,
title = {Test Result of the Short Models MQXFS3 and MQXFS5 for the HL-LHC Upgrade},
author = {Bajas, Hugues and Ambrosio, Giorgio and Ballarino, A. and Bajko, Marta and Bordini, B. and Bourcey, N. and Cheng, D. W. and Cabon, M. and Chiuchiolo, A. and Chlachidze, G. and Felice, H. and Fiscarelli, L. and Juchno, M. and Bermudez, Susana Izquierdo and Guinchard, M. and Kopal, J. and Lackner, F. and Marchevsky, M. and Nobrega, F. and Pan, H. and Perez, J. C. and Prin, H. and Ravaioli, E. and Rossi, L. and Sabbi, G. and Tavares, S. Sequeira and Steckert, J. and Stoynev, S. and Todesco, Ezio and Vallone, G. and Wanderer, P. and Wang, X. and Yu, M.},
abstractNote = {In the framework of the High-Luminosity Large Hadron Collider, the installation of a new generation of quadrupole magnets is foreseen on each side of ATLAS and CMS experiments. The new magnets are based on Nb$_{3}$Sn technology and shall be able to reach an ultimate current of 17.9 kA with a peak field of 12.3 T in the coil. In 2016 and 2017, the first two short models, called MQXFS3 and MQXFS5, have been tested at 4.2 and 1.9 K in the two new test benches at the European Organization for Nuclear Research. This paper presents the result of the quench performance of the two models; the first magnet reached nominal but failed to reach ultimate, showing detraining in one coil. MQXFS5 reached ultimate performance without any detraining phenomena, validating the PIT conductor used for the first time in this magnet program.},
doi = {10.1109/TASC.2018.2810100},
journal = {IEEE Transactions on Applied Superconductivity},
number = 3,
volume = 28,
place = {United States},
year = {2018},
month = {2}
}