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900 MHz, Ultra-Wide Bore 105 mm NMR Magnet

Intro

Our ultra-wide bore 900 MHz NMR magnet (105 mm) was designed and built by the NHMFL's own Magnet Science and Technology department.  The magnet reached its full field of 21.1 Tesla on July 21, 2004, without incurring any training quenches.  Regular user operations started on August 1, 2005.  Since then, research proposals for the time on this instrument are accepted from interested scientists worldwide in all three areas of NMR: solid state, solution and imaging. 

An article on the magnet construction is available as a screen optimized (321 Kb) or print optimized (4.4 Mb) PDF files.

Applying for Instrument Time

We encourage potential users to apply for time on this 900 MHz instrument.  Research proposals for the instrument time should be submitted to Dr. R. Fu in accordance with the steps outlined here.  Experimental time is usually alloted prior to the start of each month.

Application Demos

  • TROSY spectra of M2 protein
  • Chemical shift correlated spectrum of a 15N-Acetyl-Valine crystal
  • Improved CPMAS resolution and homonuclear dipolar recoupling
  • 17O NMR spectroscopy of gramicidin and peptides using 900 MHz BB probe
  • Fixed mouse brain images from the 900 MHz scanner
  • First in-vivo mouse brain images from the 900 MHz scanner
  • High resolution PRESS localized spectroscopy using MRI

    Specs

  • Designation: Solid State NMR, Solution NMR, and Imaging
  • Location: Tallahassee
  • Field: 21.1 Tesla
  • Bore size: 105 mm
  • Distance to COF from RT shims flange: 1542 mm
  • Magnet Drift 525 Hz/hr, stabilized by current injection
  • Residual drift after stabilization is less than 10 Hz/hr
  • Outer (89 mm ID) RT shims by Resonance Research
  • Inner 26-channel Bruker RT shims for solution applications
  • 4-channel Bruker Avance 900 MHz console
  • Built-in VT controller by Bruker
  • 1000/300 W 6-365 MHz linear amplifier
  • 1000/150 W 700-900 MHz linear amplifier
  • Two 500 W 6-365 MHz linear amplifiers

    Commercial Probes

  • Bruker 3.2 mm 1H—13C—15N CPMAS probe, VT
  • Bruker micro2.5 MRI probe with 2.5, 5, 10, and 30 mm 1H coils
  • Bruker 5 mm 1H{13C,15N} solution probe with 3-axis gradients, VT

    NHMFL probes developed in-house

  • 3.2mm MAS 1H—X transmission line probe, expanded temperature range
  • Low-E 1H—X static probe for biological solids, flat and bicelle sample coils, biological VT
  • 1H—X transmission line probe, interchangeable static coils, biological VT

    Full Time Schedule [Older schedule]

    Dates PI Submitter Collaborators Project/Experiment Title
    01/02/10 - 01/07/10 Unused -
    01/08/10 - 01/10/10  Peter Gorkov
    (NHMFL)
     Samuel Grant William Brey
    Peter Gorkov
    Samuel Grant
    Samuel Grant
    Ihssan Masad
    The development of a novel sliding ring coil for 900 MHz hig...
    The development of a novel sliding ring coil for 900 MHz hig...

    01/11/10 - 01/17/10  Tim Cross
    (FSU)
     Sorin Luca Tim Cross
    Riqiang Fu
    Sorin Luca
    Structure of full-length M2 membrane protein reconstituted i...
    Structure and dynamics of M2 in DMPC/DMPG bilayers as a func...

    01/18/10 - 01/19/10  Peter Gorkov
    (NHMFL)
     Chunqi Qian William Brey
    Peter Gorkov
    Samuel Grant
    Ihssan Masad
    Chunqi Qian
    The development of a novel sliding ring coil for 900 MHz hig...
    The development of a novel sliding ring coil for 900 MHz hig...

    01/20/10  Victor Schepkin
    (NHMFL)
     Victor Schepkin William Brey
    Thomas Chenevert
    John Cidlowski
    Peter Gorkov
    Cathy Levenson
    Brian Ross
    Victor Schepkin
    Victor Schepkin
    Sodium and Diffusion MRI of Rodent Glioma Therapy
    Sodium and ADC responses during BCNU resistant glioma therap...

    01/21/10 - 01/25/10  Samuel Grant
    (FSU & NHMFL)
     Samuel Grant Samuel Grant
    Samuel Grant
    Chris Ridel
    Jens Rosenberg
    Geoffrey Strouse
    High Field Contrast Agent Development: Qdot nanoparticles co...
    T1, T2 and T2* measurements of labeled Bv2 cells: Fe vs Dy

    01/26/10 - 01/29/10  Samuel Grant
    (FSU & NHMFL)
     Samuel Grant Susanne Cappendijk
    Parastou Foroutan
    Samuel Grant
    Samuel Grant
    Neurodegeneration Following MDMA Exposure in the Adult Male ...
    MRS

    01/30/10 - 02/07/10  Victor Schepkin
    (NHMFL)
     Victor Schepkin William Brey
    Thomas Chenevert
    John Cidlowski
    Peter Gorkov
    Cathy Levenson
    Brian Ross
    Victor Schepkin
    Victor Schepkin
    Sodium and Diffusion MRI of Rodent Glioma Therapy
    Sodium and ADC responses during BCNU resistant glioma therap...

    02/08/10 - 02/11/10  Mark Henkleman
    (Hospital for Sick Children)
     Samuel Grant Samuel Grant
    Samuel Grant
    Mark Henkleman
    Jason Lerch
    John Sled
    HIGH FIELD IMAGING OF MOUSE BRAIN AND EMBRYO
    3D anatomical imaging

    02/12/10 - 02/14/10  Samuel Grant
    (FSU & NHMFL)
     Samuel Grant Samuel Grant
    Cathy Levenson
    Jens Rosenberg
    Geoffrey Strouse
    In vivo tracking of exogenous and endogenous labeled cells a...
    In vivo tracking of exogenous and endogenous labeled cells a...

    02/15/10 - 02/21/10  Tim Cross
    (FSU)
     Sorin Luca Riqiang Fu
    Sorin Luca
    Dylan Murray
    Structure of full-length M2 membrane protein reconstituted i...
    NMR studies of uniformly [13C,15N]-labeled M2 channel at dif...

    02/22/10 - 02/23/10  Naresh Dalal
    (Florida St. University)
     Sneha Dugar Sneha Dugar
    Riqiang Fu
    Detection of ethyl group orientation in petroporphyrins by s...
    Detection of ethyl group orientation in petroporphyrins by s...

    02/24/10  Victor Schepkin
    (NHMFL)
     Victor Schepkin William Brey
    Thomas Chenevert
    John Cidlowski
    Peter Gorkov
    Cathy Levenson
    Brian Ross
    Victor Schepkin
    Victor Schepkin
    Sodium and Diffusion MRI of Rodent Glioma Therapy
    Sodium and ADC responses during BCNU resistant glioma therap...

    02/25/10 - 02/28/10  Samuel Grant
    (FSU & NHMFL)
     Samuel Grant Parastou Foroutan
    Samuel Grant
    Katherine Schweitzer
    Zbigniew Wszolek
    A Novel Approach to Dementia: High Resolution 1H MRI of Post...
    Pathological 3D imaging

     03/01/10 - Available -