B1. Test stations for superconducting magnets

VERTICAL STATION-STAARQ (CEA)

Tests of large magnet components (h ≤ 7.9 m, Φ ≤ 882 mm, I < 20 kA) at low temperature (in liquid helium or under vacuum, T ≥ 1.8 K).

  • Power supply: 20 000 A, 5 V,
  • Maximal height under vacuum: h = 7.9m (of which 7 m at 80 K), useful diameter: Φ = 882 mm,
  • The station is located under two cranes (m ≤ 10 t for the first one and m ≤ 50 t for the other one, hook height of h = 11 m).

JT-60SA STATION (CEA)

Trials on current intensity, insulation voltage, mechanical stress, pressure drop and temperature for large magnets

  • Power supply I < 26 000 A,
  • Dedicated Magnet Safety System and Magnet Control System,
  • Oblong cryostat (length l = 10 m, width w = 6.5m, hauteur utile h = 2 m),
  • Dedicated refrigerator: 490 W at 4.2 K + 3.6 g/s from 50 K to 300 K,
  • Data acquisition up to 500 Hz for cryogenic sensors and up to 50 kHz for voltage measurements.

SM18 SC magnets test facility (CERN)

Offers testing on superconducting magnets and devices refrigerated at low temperatures and high currents. Test subjects can be cooled with LHe and/or LN2 to temperatures ranging from 1.9K up to 80K, and can be powered up to currents as high as 20 kA.

  • An area regrouping three vertical cryostats with a capacity of up to 30kA at 1.9K; this area is typically used for research and development projects,
  • The second area regroups it horizontal benches which have a powering capacity of 20kA, and a secondary parallel powering circuit of up to 2kA. This area is used to test magnets of the Large Hadron Collider,
  • MagNet also includes a cryogen free cryostat, which allows users to test equipment at a range of different temperatures, from 300 and 4.2K.

Superconducting Magnet Lab (CIEMAT)

Electron irradiation by electron beam or by Bremsstrahlung,

  • Energy: 0,25 to 2,0 MeV and current 10 pA to 150mA,
  • Samples from 3 mm2 to about 20x20 cm2,
  • At target area unfocussed beam is ~1 cm diameter,
  • Beam can be focussed up to ~1 mm diameter (for small samples),
  • Beam can be defocussed up to ~3 cm diameter,
  • Beam can be scanned over 20x20 cm2 (for large samples).

Small SC quadrupoles (DESY)

Accelerator modules build in the so-called TESLA technology include small superconducting quadrupole magnet packages.


AIC-144 CYCLOTRON (IFJ-PAN)

The proton eye radiotherapy facility uses 70 MeV proton beam produced by the C-230 cyclotron. Irradiated samples and standards are subject of measurements by means of low-background gamma spectrometry directly or after radiochemical purification.


MAgnete per RIcerca Superconduttività Applicata-MARISA (INFN)

Test of critical current of high current superconducting cable up to 8T in a bore up to 440 mm and current up to 100 kA with a transformer method.

  • Magnetic Field of 8T in 330 mm bore with sample temperature 1K < T < 300 K,
  • Magnetic Field of 6T in 440 mm with temperature 1K < T < 300 K,
  • Sample shaped as a ring with low resistance joint,
  • Maximum current 100 kA.

SOLEMI (INFN)

Facility with a large bore (535 mm) for testing superconducting cables and small magnets in a background magnetic field up to 13.5T.


National FAcility for Superconducting systems-NAFASSY (INFN)

Pole for measuring power devices and superconducting materials in high magnetic fields as well as mechanical properties of materials. The idea is to set-up an infrastructure unique in Europe for testing electrical transport properties of semi-finished and superconducting wires in high magnetic field for high power, large volumes and at low temperatures.


CASPER I (KIT)

Test facility for superconducting undulator technology. CASPER I is an operating vertical cryostat where coils with maximum dimensions of 35 cm length and 30 cm diameter can be immersed in liquid helium for testing.

  • Electron beam energy range between 2 MeV and 4 MeV,
  • Pulse widths down to 500 ns,
  • Pulse repetition rates in the range 1 to 400 Hz​.

CASPER II (KIT)

Horizontal, cryogen-free test stand to perform quality certification (max. length 1500 mm, max. diameter 500 mm) of new superconducting systems and insertion devices. It also serves to test small prototype coils in a cryogen-free environment.


Vertical cryostat and instrumentation (UU)

Gersemi is a versatile vertical cryostat system for testing superconducting devices such as accelerating cavities and magnets, either in saturated or sub-atmospheric liquid helium baths.

  • Available internal dimensions: 1.1 m diameter, 2.8 m height,
  • Range of operation: 1.8 to 4.5 K, 16 to 1250 mbar,
  • Pressure stability at 16 mbar: +/- 0.1 mbar,
  • Cooling power at 1.8 K: 90 W,
  • Superconducting cavities: 1 kW RF power in a self-excited loop,
  • Superconducting magnets: stored energy up to 500 kJ, weight up to 5 ton2x 2,000 A, four quadrant power converters, maximum length up to 2.5 m.