Prospects of SC Quadrupole Production at IHEP-Protvino

The 2nd Institutes Meeting on International Construction of the FAIR Accelerator Complex

Protvino, 15-16 January, 2008

IInstitute for High Energy Physics

Sergey Kozub

Development of SC magnets and cryogenic equipment at IHEP

1978 – 1994 Development of UNK SC magnets. Production of a pilot batch of 25 SC dipoles and 3 SC quadrupoles

1995 – 1997 Large helium vacuum heat exchanger for DESY, Germany

1998 – 2001 HTS current leads and HTS dipole1999 – 2003 Tevatron Electron Lens SC magnetic systems #1 and #2

for Fermilab, USA2003 – 2004 Cabling machine for production of SC flat cable from

42 strands for Fermilab, USA2000 – 2006 Cryogenic system for cooling SC RF cavities for IHEP

K-meson beam-line by superfluid helium (1.8 K, 300 W)2005 – 2007 42 Cryogenic electrical feed boxes for LHC, CERN,

Switzerland2007 – 2008 Production and test of 6 T fast ramping dipole model for

SIS300, GSI, Darmstadt, Germany

Equipment for production and test of superconducting magnets at IHEP

SC quadrupole for UNK project

IHEP specification for SIS 300 quadrupole design

Parameter SIS 300 UNK Gradient, T/m 45 97 Coil inner diameter, mm 130 80 Coil length, m 2.15 3.09 Number of layers 1 2 Number of turns per quadrant 20 31 Number of SC wires in cable 19 19 Diameter of wires, mm 0.825 0.85 SC wire critical current density at 5T, 4.2 K, A/mm²

2700 2300

Quadrupole critical temperature, K 7.0 6.9 Total magnetic force, kN/m 210 323 Collar width, mm 20 22 Iron yoke width, mm 20 33.5

Cross section of SIS300 quadrupole cold mass

Questions to be settled ASAP with GSI experts

• Main parameter list for SIS300 quadrupole• Elements of protection system including evacuation

of helium at quench of SIS300 magnets• Cryogenic system for SIS300 magnets• Design of supports for quadrupole cold mass and

thermal shield• Design of quadrupole beam pipe

Название задачи

Production of SIS300 quadrupolesDesign of quadrupole prototypeDesign and production of toolingModernisation of test facility&measuring equipmentPreparation of quadrupole productionProduction and test of two prototypesProduction and test of SIS300 quadrupoles Delivery and installation of quadrupoles in tunnel

2007 2008 2009 2010 2011 2012 2013 2014 2015

Tentative production schedule for SIS300 quadrupoles

Conclusion

IHEP has scientific and technical potential adequate for production of quadrupoles for the SIS300

IHEP presented the relevant EoI and put forward a tentative specification list for a SIS300 quadrupoles

More detailed SIS300 quadrupole design calls for

a thorough matching with the other SIS300 subsystems