NMR/MRI Education System
Educational 0.15 Tesla NMR/MRI system with integrated spectrometer, pulse sequence generator, and analysis software for hands-on learning of magnetic resonance principles and imaging techniques.
Louise Corscadden, PhD
Director of Science · ConductScience
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The NMR/MRI Education System provides hands-on experience with nuclear magnetic resonance principles and magnetic resonance imaging techniques in an educational laboratory setting. This compact 0.15 Tesla system integrates a permanent magnet unit, RF electronics, spectrometer with pulse sequence generation, and Greenwaves analysis software to demonstrate fundamental NMR phenomena including relaxation times, chemical shifts, and basic imaging protocols.
The system includes industrial control computer with pulse sequence generator, direct digital frequency synthesis, analog-to-digital converter, and a 15 mm probe coil for sample analysis. Students can perform experiments on liquid samples using the provided test tubes, examining signal acquisition, data processing, and image reconstruction workflows common to research and clinical MRI systems. The integrated heating system and temperature control enable investigation of temperature-dependent NMR parameters.
How It Works
The system operates on nuclear magnetic resonance principles where atomic nuclei with non-zero spin (primarily ¹H protons) align with the 0.15 Tesla static magnetic field. The RF unit generates radiofrequency pulses at the Larmor frequency to tip nuclear spins away from equilibrium. When RF excitation ceases, nuclei precess back to alignment, emitting detectable RF signals that encode information about molecular environment and structure.
The pulse sequence generator controls timing of RF pulses and data acquisition windows. Direct digital frequency synthesis provides precise RF generation, while the analog-to-digital converter samples the induced signals in the 15 mm probe coil. Temperature control enables investigation of thermal effects on relaxation parameters and molecular motion.
For imaging applications, the system demonstrates basic MRI principles including signal localization and image reconstruction, though spatial encoding gradients are limited compared to clinical systems. The Greenwaves software processes acquired data, performs Fourier transforms, and displays spectra or reconstructed images.
Features & Benefits
Field of study
- Biology
- Biomedical Engineering
- Chemistry
- Educational
- Physics
Product Application
- Analytical Instruments
- Educational
- Educational & Research
- Magnetic Resonance Imaging (MRI)
magnetic_field_strength
- 0.15 Tesla
design
- compact and lightweight
intended_use
- Pre clinical use only
imaging_capabilities
- magnetic resonance imaging (MRI)
coil_compatibility
- range of coils suitable for imaging different body parts
Automation Level
- semi-automated
Brand
- Greenwaves Scientific
Research Domain
- Analytical Chemistry
- Biomedical Engineering
- Chemistry
- Materials Science
- Physics
Weight
- 175.0 kg
Dimensions
- L: 80.0 mm
- W: 60.0 mm
- H: 80.0 mm
| Feature | This Product | Typical Alternative | Advantage |
|---|---|---|---|
| Magnetic Field Strength | 0.15 Tesla permanent magnet | Educational NMR systems typically range from 0.1 to 1.0 Tesla | Sufficient field strength for demonstrating key NMR phenomena while maintaining cost-effectiveness and safety for educational environments. |
| System Integration | Complete integrated system with magnet, RF unit, spectrometer, and control computer | Some educational systems require separate components or external computers | Streamlined setup and operation reduces complexity for educational applications and minimizes installation requirements. |
| Sample Compatibility | 15 mm probe coil with standard test tubes | Entry-level systems may have smaller sample volumes or non-standard holders | Standard tube dimensions allow use of common laboratory glassware and adequate sample volumes for clear signal detection. |
| Temperature Control | Integrated heating system and temperature control | Basic educational systems often lack variable temperature capabilities | Enables investigation of temperature-dependent NMR parameters and thermal effects on molecular dynamics. |
| Pulse Sequence Flexibility | Dedicated pulse sequence generator with programmable timing | Fixed pulse sequences or limited programming options | Allows students to explore advanced NMR techniques and understand pulse sequence design principles. |
This system provides comprehensive NMR education capabilities with integrated hardware, temperature control, and flexible pulse programming at 0.15 Tesla field strength, suitable for undergraduate and graduate instruction in magnetic resonance principles.
Practical Tips
Perform reference sample measurements regularly to verify system stability and pulse calibration accuracy.
Why: Ensures consistent educational results and maintains measurement reproducibility across different experimental sessions.
Keep ferromagnetic objects at least one meter away from the magnet unit during operation and storage.
Why: Prevents magnetic field disturbances that can affect measurement quality and potentially damage system components.
Allow adequate temperature stabilization time before beginning precision measurements or student experiments.
Why: Temperature stability directly affects magnetic field homogeneity and signal reproducibility in NMR measurements.
Optimize sample volume and positioning within the 15 mm test tubes for maximum signal-to-noise ratio.
Why: Proper sample preparation ensures clear spectral features and effective demonstration of NMR principles to students.
Ensure students understand RF safety protocols and proper operation of the heating system components.
Why: Educational environments require clear safety procedures to prevent equipment damage and ensure student safety.
Check RF cable connections and probe positioning if signal quality degrades during experiments.
Why: Mechanical connections are common points of failure that can significantly impact measurement sensitivity.
Setup Guide
What’s in the Box
- Magnet unit with permanent magnet
- RF unit box with preamplifier and power amplifier
- Spectrometer unit with industrial control computer
- Pulse sequence generator module
- Direct digital frequency synthesis unit
- Analog-to-digital converter
- 15 mm probe coil
- Temperature control system
- Heating system components
- Power supply system
- Greenwaves Analysis Software USB
- Precision balance
- 15 mm test tubes (10 pieces)
- Test tube stand
- User manual and documentation (typical)
- Power cables and interconnects (typical)
Warranty
ConductScience provides standard manufacturer warranty coverage with technical support for educational instrumentation. Consult product documentation for specific warranty terms and conditions.
Compliance
References
Background reading relevant to this product:
What magnetic field strength does this system provide and how does it compare to research NMR spectrometers?
The system operates at 0.15 Tesla, which corresponds to approximately 6.4 MHz proton resonance frequency. This is significantly lower than research spectrometers (typically 1.5-21.1 Tesla) but sufficient for demonstrating fundamental NMR principles and relaxation measurements.
Can the system perform both NMR spectroscopy and MRI experiments?
Yes, the system demonstrates both NMR spectroscopy principles through the 15 mm probe coil and basic MRI concepts, though spatial encoding capabilities are limited compared to clinical MRI systems due to the educational design.
What sample types and volumes are compatible with the 15 mm probe coil?
The 15 mm probe coil is designed for liquid samples in the provided test tubes. Sample volume should be optimized for the coil geometry, typically requiring several milliliters for adequate signal-to-noise ratio.
How precise is the temperature control system for variable temperature experiments?
The system includes integrated temperature control and heating systems for investigating temperature-dependent NMR parameters. Consult product datasheet for specific temperature range and stability specifications.
What pulse sequences can be programmed using the pulse sequence generator?
The integrated pulse sequence generator enables custom RF pulse programming for various NMR experiments including relaxation time measurements, spin echo sequences, and basic imaging protocols within the system's capabilities.
Is the Greenwaves software compatible with standard NMR data formats?
The Greenwaves Analysis Software provides data acquisition and processing capabilities. For specific file format compatibility and data export options, consult the software documentation.
What maintenance requirements does the permanent magnet system have?
Permanent magnet systems require minimal maintenance compared to superconducting magnets, primarily involving temperature monitoring, RF system calibration, and keeping ferromagnetic materials away from the magnet.
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