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The Accelerators, Cryogeny and Magnetism Division

Les installations du SACM

Test facilities for superconducting magnets and large size components

 
W-7X test facility
pix astimg  W-7X test facility   Trials on current intensity, isolating voltage, mechanical stress, pressure drop and temperature for magnets cooled with supercritical helium flow between 4.5 K et 7.6 K. 2 cryostats: 5 m useful...More

 
Schema - Station cryogénique horizontale pour essais magnétiques
pix astimg  Schema - Station cryogénique horizontale pour essais magnétiques   Tests of superconducting magnets at temperature between 1.8 K and 4.2 K. Horizontal cryostat: 0.6 m useful diameter and 8 m useful length. 25 W at 1.8 K (450 W at 4.2 K) refrigerator. Electrical...More

 
Vertical test facility
pix astimg  Vertical test facility   Tests of large scale components at low temperature (in liquid helium or under vacuum). Vertical dewar fitted in a pit. 0.88 m useful diameter. Maximum height under vacuum: 7.9 m with a 7 m thermal...More

Test facilities under magnetic field

 
Cétacé – Cryostat d’essais à température ajustable et champ élevé
pix astimg  Cétacé – Cryostat d’essais à température ajustable et champ élevé   Critical current measurements on superconducting samples. Maximum current intensity in sample: 2,000 A. Maximum magnetic field: 17 T. Magnet useful diameter: 64 mm. Useful diameter of the sample...More

 
Christiane
pix astimg  Christiane   Critical current measurements on superconducting samples at 4.2 K. Maximum current intensity in sample: 3,000 A. Maximum magnetic field: 7 T. Magnet useful diameter: 90 mm.  ...More

 
Séjos – Stations d’essais de jonctions supraconductrices
pix astimg  Séjos – Stations d’essais de jonctions supraconductrices   Tests of electrical joints at 4.2 K. Maximum current intensity in sample: 10 kA. Maximum magnetic field: 4.7 T. Magnet useful diameter: 90 mm. Useful diameter of the sample cryostat: 76 mm. A...More

 
RMN magnet 530
pix astimg  RMN magnet 530   Tests under magnetic field of components such as sensors, gauges, etc. at room temperature. Maximum magnetic field: 2 T. Magnet useful diameter: 510 mm. Horizontal axis.  ...More

 
Optimist magnet
pix astimg  Optimist magnet   Tests under magnetic field of components such as sensors, gauges, etc. at cryogenic temperature. Maximum magnetic field: 8.8 T. Magnet useful diameter: 150 mm. Horizontal axis.  ...More

Test facilities for superconducting cavities and associated components

 
Test benches for power couplers
pix astimg  Test benches for power couplers   Two facilities for radiofrequency power tests: one 1300 MHz test bench with 1.5 MW peak power in pulsed mode, 1 ms pulse with a 10 Hz frequency ; one 704 MHz-80 kW test bench in continuous mode. RF...More

 
Cryholab – Cryostat horizontal de laboratoire (Dapnia-IN2P3 property)
pix astimg  Cryholab – Cryostat horizontal de laboratoire (Dapnia-IN2P3 property)   Tests of superconducting cavities in the same conditions as in an accelerator. Radio frequency power supply: now 700 W; foreseen: 80 kW for continuous input; up to 1 MW for pulsed input. Pumping...More

 
Vertical cryostats CV
pix astimg  Vertical cryostats CV   Accelerating field and quality factor measurements of superconducting radiofrequency cavities. 2 pumping units: 1 g/s at 13 mbar. 1 RF sources: 200 W cw, 700 MHz at 1500 MHz 1 RF source: 80 W cw,...More

Characterization facilities

 
Residual resistivity ratio (RRR) measurements
pix astimg  Residual resistivity ratio (RRR) measurements   RRR measurement samples: 100 mm x 3.5 mm. Cryostat: 0.15-m useful diameter, 0.9-m height. Consumption: 20 l / test.  ...More

 
Mecti - Mesure de conductivité thermique des isolants
pix astimg  Mecti - Mesure de conductivité thermique des isolants   Cold head allowing measurements on 30-cm long samples in the temperature range from 1.8 K to 60 K with helium and from 80 K to 150 K with nitrogen...More

 
Thermosiphon
pix astimg  Thermosiphon   Characterization of two-phase flows with measurements of mass-flow, vapour quality, pressure drop and wall temperature along a 1.2-m vertical test section, inserted in a U-shape thermosiphon cooling...More

Helium refrigerators and liquefiers

 
Hélial 4012  Liquefier-Cooler connected to Cryholab
pix astimg  Hélial 4012 Liquefier-Cooler connected to Cryholab   Liquefier production is around 170 or 70 litre/hour with or without nitrogen pre-cooling. A helium compressor 80g/s (1600 m3/h) and an Air Liquide cold box make up the liquefier. Its cooling power is...More

 
CELLO liquefier - refrigerator
pix astimg  CELLO liquefier - refrigerator     Liquefaction: Around 120 l/h. Refrigeration power: Around 400 W at 4.2 K.   ...More

 
pix astimg  Hélial 4003 liquefier - refrigerator used with the W-7X test station     Liquefaction: Around 70 l/h. Refrigeration power: Around 200 W at 4.2 K.   ...More

 
Hélial 4008 liquefier in the liquefaction station
pix astimg  Hélial 4008 liquefier in the liquefaction station     Liquefaction: Around 70 l/h.   Liquid helium delivered during 2009: 175,000 l. ...More

Laboratoiries and workshops

 
Mechanical test laboratory
pix astimg  Mechanical test laboratory   Measurements at 300 K as well as at cryogenic temperatures - 77 K (liquid nitrogen) and 4.2 K (liquid helium) – of yield properties (stress, strain…) and Young’s modulus for metallic and composite...More

 
Chemistry laboratory and clean-room (Orme des Merisiers)
pix astimg  Chemistry laboratory and clean-room (Orme des Merisiers)       Chemistry laboratory Surface treatments for superconducting accelerator...More

 
Chemistry laboratory and clean-room (Saclay)
pix astimg  Chemistry laboratory and clean-room (Saclay)     Chemistry laboratory 8 fume hoods for the treatment of samples and cavities, including one closed chemistry cabinet for treating only the internal...More

 
Ultra high vacuum laboratory
pix astimg  Ultra high vacuum laboratory   The ultra high vacuum laboratory takes charge of the vacuum calculations for accelerators, the research about material desorption and the development in ultra high vacuum techniques and vacuum...More

 
pix astimg  Vacuum techniques workshop   The workshop makes use of the pumping units and leak detectors required by vacuum insulated dewars, and for the tightness tests of cryogenic vessels, tubes and ducts....More

 
pix astimg  Winding machine workshop   In this workshop two winding machines are available: the first one is convenient for winding solenoid magnets up to 2-m outer diameter, the second one is used for small size coils or for wrapping...More

 
Impregnation laboratory
pix astimg  Impregnation laboratory   There is provided the technical support for the insulation and impregnation of the superconducting coils designed in the division: impregnations of characterization samples and prototypes, processing...More

 
Mechanical workshop
pix astimg  Mechanical workshop   The mechanical workshop is more a prototype workshop than a production workshop. It is available for urging needs of experiments and in case of modification requirements. It makes available : 5...More