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21 Tesla FT-ICR MS (123 mm bore diameter)

21 Tesla FT-ICR MS (123 mm bore diameter)

This new tool, featuring a magnet built by the Bruker Corporation and installed in 2014, represents the world’s highest field, persistent, superconducting magnet suitable for FT-ICR mass spectrometry.

The 21 T magnet design offers a 123-mm room temperature horizontal bore, with fringe field profiles and room temperature bore access optimized for FT-ICR MS. It includes many design features pioneered by Bruker, including operation at ~2 Kelvin by use of Bruker’s unique UltraStabilized™ sub-cooling technology, the UltraShield™ technology to reduce stray fields, as well as novel active magnet refrigeration technology that virtually eliminates cryogen refills and user maintenance of the magnet. In addition to FTMS, the 21 T magnet is also suitable for ultra-high field preclinical MRI for highest sensitivity and resolution in mouse neuroimaging. Read press release.


C. Hendrickson, et al, 21 Tesla Fourier Transform Ion Cyclotron Resonance Mass Spectrometer: A National Resource for Ultrahigh Resolution Mass Analysis, Journal of the American Society of Mass Spectrometry, 1, 1-7 (2015) Read online.



  • Field Strength: 21 tesla
  • Bore Diameter: 123 mm room temperature horizontal bore
  • Homogeneity: <5 ppm (60 mm dia. X 100 mm long cylinder)
  • Open for users who would pay for magnet time: Yes


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Last modified on 23 December 2022

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