SLK MRI-1400 Benchtop Low-Field Nuclear Magnetic Resonance Imaging System
| Origin | USA |
|---|---|
| Manufacturer Type | Authorized Distributor |
| Origin Category | Imported |
| Model | SLK MRI-1400 |
| Pricing | Available Upon Request |
| Operating Frequency | 9–13 MHz |
| Sample Diameter Range | 3/16″ to 4″ (4.8–101.6 mm) |
| Maximum Sample Temperature | 300 °F (149 °C) |
| Maximum Sample Pressure | 2000 psi (13.8 MPa) |
| Gradient Capability | Integrated 1D pulsed field gradient (PFG) module |
| Typical Acquisition Time | < 2 minutes per measurement |
| Design | Modular, field-upgradeable architecture |
| Control Interface | Ethernet-based remote operation |
| Environmental Profile | Solvent-free, non-ionizing, no radioactive sources |
Overview
The SLK MRI-1400 is a compact, benchtop low-field nuclear magnetic resonance (NMR) imaging system engineered for non-destructive, quantitative structural and dynamic characterization of heterogeneous materials under controlled thermal and mechanical conditions. Unlike high-field clinical MRI systems, the SLK MRI-1400 operates in the 9–13 MHz 1H Larmor frequency range—optimized for robust signal-to-noise ratio in porous media, polymers, catalysts, food matrices, and geological cores—while maintaining operational safety, minimal infrastructure requirements, and compatibility with in situ process environments. Its core measurement principle relies on spin echo-based pulse sequences (e.g., CPMG, IR-SE, and diffusion-weighted imaging) to extract spatially resolved T2, T1, D (diffusion coefficient), and porosity distributions without sample destruction or chemical labeling. The system integrates a permanent magnet with active shimming, shielded RF coil assemblies, and a programmable gradient subsystem—enabling both 1D depth profiling and 2D slice-select imaging with sub-millimeter spatial resolution.
Key Features
- Modular hardware architecture supporting field-deployable expansion: optional 1D pulsed field gradient (PFG) module enables diffusion-relaxation correlation (D–T2) mapping and tortuosity quantification.
- Thermo-pressure chamber integration: accommodates cylindrical samples from 3/16″ to 4″ diameter, rated to 300 °F (149 °C) and 2000 psi (13.8 MPa), facilitating real-time NMR monitoring of phase transitions, fluid migration, or reaction kinetics under reservoir-relevant conditions.
- Embedded acquisition engine with sub-2-minute typical scan time per parameter set—enabling high-throughput screening in QC/QA and R&D workflows.
- Ethernet-enabled remote control and monitoring: supports secure TLS-encrypted command interface, script-driven batch acquisition, and integration into LabVIEW or Python-based automation frameworks.
- Low-maintenance design: permanent magnet requires no cryogens or power; RF electronics feature industrial-grade thermal management; coil tuning is motorized and software-calibrated.
- Compliance-ready firmware: audit trail logging, user-access controls, and electronic signature support align with GLP and 21 CFR Part 11 requirements for regulated environments.
Sample Compatibility & Compliance
The SLK MRI-1400 accepts standard NMR tube formats (5 mm, 10 mm, 15 mm OD) as well as custom cylindrical cells up to 4″ in diameter—ideal for intact rock cores, polymer extrudates, battery electrode stacks, or packaged food specimens. All RF coils are Q-factor optimized for high sensitivity across the 9–13 MHz band, with automatic impedance matching. The system conforms to IEC 61000-6-3 (EMC emission limits) and IEC 61000-6-2 (immunity), and its non-ionizing operation meets ANSI/IEEE C95.1-2019 exposure guidelines. Data integrity protocols—including checksummed raw FID storage, metadata tagging (temperature, pressure, sequence parameters), and version-controlled pulse sequence libraries—support ISO/IEC 17025 accreditation pathways for testing laboratories.
Software & Data Management
Acquisition and reconstruction are managed via SLK’s proprietary NMR Studio™ platform—a Windows-based application built on Qt and HDF5 data containers. It provides real-time preview of k-space and image domains, interactive ROI selection, multi-exponential T2 inversion (NNLS, SVD), and diffusion distribution analysis. All datasets are stored in vendor-neutral HDF5 format with embedded SI-unit metadata, enabling direct import into MATLAB, Python (h5py), or third-party visualization tools (ParaView, ImageJ). The software includes automated calibration routines (90°/180° pulse width, gradient amplitude, RF offset), sequence templating, and batch processing pipelines with error logging and QC flagging. Audit trails record operator ID, timestamp, parameter edits, and export events—fully traceable for FDA or ISO audits.
Applications
- Porosity and pore-size distribution mapping in shale, sandstone, and cementitious materials (ASTM D7824, ISO 15799)
- In situ monitoring of water saturation, oil viscosity, and gas dissolution in enhanced oil recovery (EOR) studies
- Quantitative analysis of moisture migration, crystallinity, and phase separation in pharmaceutical tablets and lyophilized biologics
- Characterization of polymer crosslink density, gel point, and solvent uptake kinetics
- Non-invasive assessment of food texture, fat distribution, and freezing/thawing damage in meat and dairy products
- Electrode degradation tracking in lithium-ion battery pouch cells under thermal cycling
FAQ
Does the SLK MRI-1400 require liquid helium or cryogenic cooling?
No—the system uses a passively temperature-stabilized permanent magnet and air-cooled RF electronics. No cryogens, compressors, or external chillers are needed.
Can it be integrated into an existing process line or autoclave?
Yes—its modular chassis and Ethernet/IP-based control allow for rack-mount installation and PLC interfacing via Modbus TCP or OPC UA gateways.
Is sequence development supported for custom pulse schemes?
Yes—NMR Studio™ includes a graphical pulse sequence editor compliant with SpinCore-compatible syntax, and full API access for Python and MATLAB scripting.
What validation documentation is provided?
Each unit ships with Factory Acceptance Test (FAT) report, RF coil calibration certificate, gradient linearity map, and IQ/OQ protocols aligned with ASTM E2917 and USP .
