UNIVERSI
TÄ
TS-
BIBLIOTHEK
P
ADERBORN
Anmelden
Menü
Menü
Start
Hilfe
Blog
Weitere Dienste
Neuerwerbungslisten
Fachsystematik Bücher
Erwerbungsvorschlag
Bestellung aus dem Magazin
Fernleihe
Einstellungen
Sprache
Deutsch
Deutsch
Englisch
Farbschema
Hell
Dunkel
Automatisch
Sie befinden Sich nicht im Netzwerk der Universität Paderborn. Der Zugriff auf elektronische Ressourcen ist
gegebenenfalls
nur via VPN oder Shibboleth (DFN-AAI) möglich.
mehr Informationen...
Universitätsbibliothek
Katalog
Suche
Details
Zur Ergebnisliste
Ergebnis 4 von 14
Datensatz exportieren als...
BibTeX
Conductor Specification and Validation for High-Luminosity LHC Quadrupole Magnets
IEEE transactions on applied superconductivity, 2017-06, Vol.27 (4)
Cooley, L. D.
Ghosh, A. K.
Dietderich, D. R.
Pong, I.
2017
Volltextzugriff (PDF)
Details
Autor(en) / Beteiligte
Cooley, L. D.
Ghosh, A. K.
Dietderich, D. R.
Pong, I.
Titel
Conductor Specification and Validation for High-Luminosity LHC Quadrupole Magnets
Ist Teil von
IEEE transactions on applied superconductivity, 2017-06, Vol.27 (4)
Ort / Verlag
United States: Institute of Electrical and Electronics Engineers (IEEE)
Erscheinungsjahr
2017
Quelle
IEEE Electronic Library (IEL)
Beschreibungen/Notizen
© 2017 IEEE. The high-luminosity upgrade of the large hadron collider (HL-LHC) at CERN will replace the main ring inner triplet quadrupoles, identified by the acronym MQXF, adjacent to the main ring intersection regions. For the past decade, the U.S. LHC Accelerator R&D Program, LARP, has been evaluating conductors for the MQXFA prototypes, which are the outer magnets of the triplet. Recently, the requirements for MQXF magnets and cables have been published in [P. Ferracin et al., IEEE Trans. Appl. Supercond., vol. 26, no. 4, Jun. 2016, Art. no. 4000207], along with the final specification for Ti-alloyed Nb3Sn conductor determined jointly by CERN and LARP. This paper describes the rationale beneath the 0.85-mm-diameter strand's chief parameters, which are 108 or more subelements, a copper fraction not less than 52.4%, strand critical current at 4.22 K not less than 631 A at 12 T and 331 A at 15 T, and residual resistance ratio of not less than 150. This paper also compares the performance for ~100 km production lots of the five most recent LARP conductors to the first 163 km of strand made according to theHL-LHCspecification.Two factors emerge as significant for optimizing performance and minimizing risk: a modest increase of the subelement diameter from 50 to 55 μm, and a Nb:Sn molar ratio of 3.6 instead of 3.4. The statistics acquired so far give confidence that the present conductor can balance competing demands in production for the HL-LHC project.
Sprache
Englisch
Identifikatoren
ISSN: 1051-8223
eISSN: 1558-2515
Titel-ID: cdi_osti_scitechconnect_1340492
Format
–
Schlagworte
critical current
,
magnet conductors
,
Nb3Sn
,
niobium tin superconductors
,
PARTICLE ACCELERATORS
,
quadrupole magnets
,
residual resistance ratio
,
RRR
Weiterführende Literatur
Empfehlungen zum selben Thema automatisch vorgeschlagen von
bX