Application material system

LHe 4 K

Liquid Helium / MRI / Superconducting Magnets

Control heat leak at 4K while preserving vacuum stability, clean installation, thermal-cycle durability, and service access around magnet systems.

Recommended system 4K boundary / Reflective insulation / Controlled fixing / Protection
Recommended products CryoMLI 102 · CryoMLI 302 · CryoTape AlF · CryoTape ACP

Engineering scope

Key engineering challenges

  • Avoid layer compression and thermal bridges
  • Control outgassing and particulate contamination
  • Accommodate shields, leads, supports, and service openings

System layers

  1. 01
    4K boundary

    Cryostat or cold-mass surface and intermediate shields defined by the system designer.

  2. 02
    Reflective insulation

    CryoMLI 102 or 302 configured for boundary temperatures and available installation volume.

  3. 03
    Controlled fixing

    CryoTape selected for localized seams and handling, with vacuum compatibility reviewed.

  4. 04
    Protection

    CryoFiG used where abrasion or handling protection is needed without compressing the MLI.

Supporting materials and supply boundaries

East Far Cryo supplies cryogenic insulation materials, related processing, and material-selection support. Equipment and system responsibilities remain with the project owner and equipment designer.

  • Cryostat, magnet, current leads, thermal shields, supports, and vacuum hardware remain equipment-designer responsibilities.
  • Electrical insulation and quench-safety materials require separate system qualification.
  • Cleanliness, particulate, and outgassing limits must be supplied by the project.

Parameters needed for quotation

  • Cryogenic medium and normal / transient operating temperatures
  • Target vacuum level, pump-down method, hold time, and expected residual-gas load
  • Equipment geometry, dimensions or surface area, penetrations, and installation access
  • Target heat leak or required layer count and any governing acceptance method
  • Required delivery form: rolls, slit widths, sewn blankets, profile-cut parts, or installation kits
  • Cold-mass and shield temperatures, magnetic / electrical restrictions, and cleanliness class