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SUMMARY:The superconducting magnet of the Multipurpose Detector
DTSTART;VALUE=DATE-TIME:20140225T044500Z
DTEND;VALUE=DATE-TIME:20140225T050500Z
DTSTAMP;VALUE=DATE-TIME:20260912T202230Z
UID:indico-contribution-103@indico.inp.nsk.su
DESCRIPTION:Speakers: Evgeny Koshurnikov (Joint Institute for Nuclear Rese
 arch)\nThe multipurpose detector (MPD) is a 4π spectrometer to be used fo
 r studying charged hadrons\, electrons\, and photons generated in heavy io
 n collisions at energies provided by the NICA collider of the Joint Instit
 ute for Nuclear Research (Dubna).\nA constituent part of the MPD is a sole
 noid magnet with a superconducting NbTi coil and a steel flux return yoke.
  The magnet weighs eight hundred tons and is intended for providing a high
 ly homogeneous magnetic field of 0.5 T in an aperture 4596 mm in diameter 
 to ensure the transverse momentum resolution within the range of 0.1-3 GeV
 /c at NICA.\nStructurally\, the MPD magnet yoke is a cylindrical barrel-li
 ke structure\, which consists of 24 beams that return the magnetic flux of
  the coil\, two support rings\, two poles\, and two support cradles that c
 arry the total weight of the detector. The stainless cryostat with the sup
 erconducting coil is rigidly fixed inside the yoke barrel. The adopted str
 uctural arrangement of the yoke guarantees high rigidity of the whole magn
 et and will ensure the required field homogeneity (integral of the radial 
 magnetic induction component) in the TPC region after subsequent withdrawa
 ls of the poles and multiple movements of the magnet to the assembly site 
 for updating or repair.\nThe coil is a one-layer solenoid made of a superc
 onducting NbTi cable in the aluminum matrix. The conductor is wound onto i
 nside the aluminium support cylinder. The cooling method chosen for the MP
 D magnet is based on the forced two-phase helium flow using a helium refri
 gerator. The coil conductor is cooled indirectly via the thermal contact w
 ith the aluminum cylinder and heat removal through the cylinder to the alu
 minum tube with circulated liquid helium.\n\nhttps://indico.inp.nsk.su/eve
 nt/0/contributions/103/
LOCATION:
URL:https://indico.inp.nsk.su/event/0/contributions/103/
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