The Portal of Superconductor Activities for Accelerators and Detectors at CERN
CERN is hosting the largest project of applied superconductivity, the Large Hadron Collider. Many activities and technologies directly or indirectly related to superconductivity are in progress for the LHC project, both for the accelerator and for the particle detectors. In total about 15 GJoules of magnetic energy will be stored in the about 10,000 superconducting magnets of the LHC, mostly concentrated in the 1232 main dipoles and in the two large magnets for the ATLAS and CMS detectors.
While LHC is being completed (the goal is to close the ring in 2007), CERN is starting to prepare the future for the post-LHC era. Some studies are aimed to a direct upgrade of the LHC ring : more powerful magnets (9-15 T peak field) in the interaction regions will help to increase the luminosity. Other studies are aimed at improving the reliability and the performance of the injector chain, through a substitution of the resistive magnets with 0.1 to 1 Hz cycled superconducting magnets, capable of 1 to 5 T/s of field ramp.
These studies are conducted in the frame of the European collaboration CARE, partly supported by the EU and including all major laboratories and universities involved in accelerators. For magnets the reference inside CARE are the network on hadron colliders HHH (which includes also some fusion laboratory to improve scientific exchange) and the Joint Research Program NED, aimed to develop the Nb3Sn conductor, the technologies and the design for a 15 T dipole of extremely high current density.
The activities on superconductivity at CERN are covered by different teams, groups and departments, so this page is intended as a directory to make it easier to find the required information. Please find below the lists of :
- Laboratories for testing of SC materials and cables: Bldg. 103, Bldg. 163, FRESCA, HTS test station, CRYOLAB
- Laboratories for production and testing of SC magnets: Bloc4, SM18 magnets & cavities, Bldg.927, Bldg. 181, SMA18, Bldg. 904
- Superconducting magnets for particle detectors: ATLAS, CMS, CAST, COMPASS
- Departments and Groups involved with SC
- Working Groups, collaborations, other activities
- On-line applied SC resources
Lucio Rossi IEEE-Council of Superconductivity, Europe email: lucio.rossi@cern.ch tel: +41.22.767.11.17Marco Buzio scientific secretary and webmaster email: marco.buzio@cern.ch tel: +41.22.767.37.24
The CERN Accelerator Complex
click on the picture to jump to the selected
lab/experiment
Laboratories for testing of SC materials and cables
Bldg. 103 - Strand Metallurgy Lab | ![]() |
This laboratory
performs characterization of strand and
cable samples. Equipment includes a metallographic
microscope with digital image analysis, a tool for mechanical polishing
of metallographic cross sections, a micro-hardness tester and a Laser-Mike
instrument.
Contact:
C Scheuerlein(AT-MCS) |
Bldg. 163 - SC Cable characterization | ![]() |
This facility includes
trans-spooling equipment and preparation area for strand samples, 7
small cryostats for NbTi and Nb3Sn strand characterization
(up to 2 kA, 12.5 T and 1.9 K). The laboratory is equipped for measurements of critical current,
contact resistance, RRR and magnetization. Contact:
L Oberli
(AT-MCS) |
Bldg. 163 - FRESCA Cable Test Facility |
|
The FRESCA facility can
provide detailed measurements of SC cable at 1.8 and 4.5 K, with current
up to 50 kA and in field up to 10.3 T. It is currently used to test and
accept the different types of cable for LHC magnets.
Contact:
A Verweij (AT-MCS) |
Bldg. 281 - HTS Current Lead Test Station |
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The LHC machine use
Bi-2223 tape current leads to minimize heat influx. The HTS laboratory
is equipped to carry out testing and assembly of the high temperature
superconductor and of the finished leads.
Contact:
A. Ballarino (AT-MEL) |
Bldg. 165 - CRYOLAB | ![]() |
This facility has
cryogenic equipment at 1.9 and 4.5 K and is used for general
low-temperature tests, including characterization of superconducting
cables and joints for LHC and other projects.
Contact:
T
Niinikoski (AT-ECR) |
Laboratories for testing of SC magnets
Bloc 4 - Vertical LHC Magnet Test Facility | ![]() |
This laboratory, operating
on the Prevessin site,
is equipped with 4 vertical cryostats able to accommodate magnets up to
about 3m long. Initially it
was used to carried out magnetic and power tests of the 1m-long LHC
model magnets; currently it operates as the test station for corrector
and special quadrupole magnets.
Contact:
W Venturini,
C Giloux (AT-MTM) |
SM18 - Main LHC Magnet Test Facility |
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This laboratory, located
between Meyrin and Prevessin, is active since 1995 for the test of LHC
magnet prototypes. Today, it is equipped with 12 full-scale cryogenic
test stations used to test round-the-clock the 1700 main LHC cryoassemblies
at 1.9 K or 4.4 K. The capabilities include 6×14
kA power supplies and 23 kW of cooling power @ 4.4 K. The Contact:
L Walckiers,
A Siemko (AT-MTM),
B Vullierme (AT-ACR) |
SM18 - Superconducting RF Cavities Assembly & Testing |
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The facility includes a
clean room for assembly of the cavities, and shares cryogenic equipment
with the magnets for testing at 1.9K.
Contact:
P Maesen (AB-RF) |
Bldg. 927 - Short models laboratory |
|
This laboratory is equipped to produce ~1 m long model dipole and quadrupole magnets, from coil winding to a complete cold mass. Here the 6T superconducting undulator for the LHC is also being made. Other activities include inspections and test on polymide insulating films, development of mechanical instrumentation, and electrical qualification of SC magnets. Contact: R
Maccaferri (AT-MCS) |
Hall 181 - LHC Magnet Assembly Facility | ![]() |
This hall hosts the
equipment that was used to assemble the first 15 LHC main dipole
magnets, from collared coil to a complete cold mass. It is currently used for the final stages of the assembly and
the warm
testing of the Short Straight Sections for the Matching Sections and
Dispersion Suppressors of the LHC.
Contact: R Ostojic, N Catalan Lasheras (AT-MEL) |
SMA 18 - Cryostating and testing of LHC cryodipoles |
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In this hall, dipole cold
masses received from the manufacturer are tested at room
temperature and assembled into their cryostat before cold testing in the
adjacent SM18. In addition, cryodipoles and arc short straight section
that have finished the cold tests are brought here to be checked and
prepared for installation.
Contact:
D Tommasini (AT-MCS) |
Bldg. 904 - Cryostating and testing of LHC Short Straight Sections |
|
In this
hall, quadrupole magnets received from the manufacturer are tested
and cryostated. In addition, the Short Straight Sections for the MS & DS
made in Bldg. 181 are brought here after cold tests for electrical and
geometric tests.
Contact:
V Parma (AT-MCS),
D Missiaen (TS-SU) |
Superconducting magnets for particle detectors at CERN
Point1 - ATLAS: A Toroidal LHC ApparatuS |
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ATLAS is the largest
experiment being built for the LHC, and it is based on a system of
magnets working at 4.8 K and made with Al-stabilized NbTi/Cu cable,
including: - a 5 m long, 2 T central solenoid - a record-size 25 m long, 8-coil, 4 T barrel toroid - two large 8-coil, 4 T end cap toroids
Contact:
H ten Kate (PH-ATI),
G Vandoni (AT-ECR) |
Point 5 - CMS: Compact Muon Solenoid |
|
CMS is a very large
underground experiment being built for the LHC. It includes a 13 m long,
4 T Al-stabilized NbTi/Cu solenoid, reinforced with Al alloy, working at 4.5 K
and reaching a record-setting 2.7 GJ of stored energy.
Contact:
D Campi (PH-CMI) |
Point 7 - CAST: CERN Axion Solar Telescope |
|
This experiment makes use
of the very first 10 m-long prototype LHC dipole mounted on a rotating gantry to track the
sun's movement, with the purpose of detecting axions passing
through the field.
Contact:
Thomas Papaevangelou (PH-UGC) |
SPS - NA58 - COMPASS |
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This experiment consists
of a muon spectrometer
installed in CERN's Super Proton Synchrotron, and it includes a SC solenoid.
Contact:
G Mallot (PH-COE) |
CERN Departments and Groups involved with Superconductivity
Working Groups, Collaborations and Other Activities
AMT - Accelerator Magnet Technology |
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AMT is a Working Group of
the
CARE collaboration which aims at the development of superconducting
materials and related procedures, standards and databases for the next
generation of accelerator magnets.
Contact:
L. Rossi (AT-MCS),
L Bottura (AT-MTM) |
Pulsed Dipole Working Group | |
The PMWG is an informal
working group which is part of the network activities of the
CARE-HHH
Program. Its main aim is exchanging information and steer R&D on pulsed
magnets for the LHC injector chain upgrade and SIS300.
Contact:
D. Tommasini (AT-MCS) |
Muon Collider Project |
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This project concerns a
muon accelerator where collisions are used to generate neutrinos. The
machine is expected to make use of SC magnets and cavities.
Contact:
A Blondel (PH-UGC) |
ISOLDE Experiment # 360 | |
This experiment was aimed at the characterization of SC material. |
Other superconductivity resources on the CERN Intranet
Superconductor Database | Material properties database created in the framework of the CARE-HHH-AMT collaboration (E Laface) |
CAS Erice, 2002 CAS Hamburg, 1995 CAS Hamburg, 1988 |
On-line CERN Accelerator School Superconductivity textbooks |
Superconducting pulsed magnets Lecture #1, #2, #3, #4, #5 |
CERN Academic Training lectures by M. Wilson (May 2006) |
Introduction to cryogenic engineering Abstracts & transparencies |
CERN Academic Training lectures by G Perinic, G Vandoni, T Niinikoski (Dec 2005) |
The
ITER project: technological challenges Abstracts & transparents |
CERN Academic Training lectures by P. Bruzzone (Sep 2004) |
Introduction to cryogenic engineering Abstracts & transparencies |
CERN Academic Training lectures by H. Quack (Sep 2003) |
Superconducting materials for magnets Abstracts & transparencies |
CERN Academic Training lectures by D.C. Larbalestier (Jan 2002) |
Superconducting magnets Abstracts & transparencies |
CERN Academic Training lectures by L. Rossi (May 2000) |
Superfluid Helium: Physics and applications Abstracts & transparencies |
CERN Academic Training lectures by W. Vinen and P. Lebrun (Feb 1999) |
Introduction to Superconductivity Abstracts & transparencies |
CERN Academic Training lectures by P. Darriulat (May 1998) |
Design issues of superconducting magnets Abstracts and transparencies |
CERN Academic Training lectures by R. Perin (Feb 1997) |
Applied superconductivity, DC and RF Abstracts and transparencies |
CERN Academic Training lectures by E. Haebel (Nov 1991) |
Superconducting RF Cavities | On-line tutorials (S Calatroni) |
Specific heat of HTS | PhD Thesis (N Garfield) |
Copper cored cable | CERN-Fermilab-Berkeley collaboration (L Bottura) |
Teacher Website | Simple introduction page aimed at high school teachers (e.g. to prepare for a visit to CERN) |
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