Optimize Your CT Scan Parameters for Complex Geometries
In this article:
- Why CT Parameter Optimization Matters: For intricate components like turbine blades, composites, and additive-manufactured lattice structures, fine-tuning CT scan settings (voltage, current, voxel size, projections, filters, and scan trajectory) is essential to maximize resolution, reduce artifacts, maintain dimensional accuracy, and ensure repeatability in nondestructive testing.
- Key Adjustments and Tools: Waygate Technologies’ Phoenix V|tome|x and Nanotom systems offer flexible geometry, submicron resolution, and advanced filtering options; combined with Datos|x software for AI-assisted reconstruction, artifact correction, and intelligent projection management, users can efficiently tailor CT parameters to complex materials and shapes.
- Waygate Technologies’ Advantage: Delivering customizable CT solutions, expert application support, and integrated analysis platforms like Volume Graphics, Waygate Technologies enables optimized inspections for industries from aerospace to additive manufacturing, ensuring high-quality imaging, faster workflows, and actionable data for critical asset decisions.
What makes computed tomography (CT) so powerful for inspecting complex parts - and why is optimizing scan parameters so critical to unlocking its full potential?
In industrial nondestructive testing (NDT), CT scanning has become indispensable for inspecting components with intricate internal structures. From aerospace turbine blades to additive-manufactured lattice structures, complex geometries demand more than just high-resolution imaging; they require intelligent parameter optimization to ensure accuracy, repeatability, and efficiency.
At Waygate Technologies, we understand that the value of a CT scan lies not just in the image it produces, but in the actionable insights it enables. That’s why we’re committed to advancing CT technology and helping our customers fine-tune their scanning strategies for even the most challenging inspection tasks.
Why CT Parameter Optimization Matters
CT scanning is a balancing act. Every scan parameter (voltage, current, exposure time, voxel size, number of projections, and filter selection) affects image quality, scan time, and the ability to detect critical defects. For parts with complex geometries, such as overlapping features, varying material densities, or deep cavities, improper settings can lead to artifacts, noise, or missed flaws.
Optimizing CT parameters is essential for:
- Maximizing contrast and resolution in multi-material assemblies
- Reducing beam hardening and scatter artifacts
- Improving dimensional accuracy for metrology applications
- Minimizing scan time without compromising quality
- Ensuring repeatability across production batches
Key Parameters to Optimize for Complex Geometries
1.X-ray Voltage and Current
Higher voltages penetrate denser materials but reduce contrast in low-density regions. For parts with both metals and polymers, a dual-energy or variable-voltage approach may be necessary. Current should be adjusted to maintain optimal detector exposure without saturating the image.
Waygate Technologies’ Phoenix V|tome|x systems offer flexible voltage ranges and advanced filtering options to tailor the beam profile to your part’s material composition.
2. Voxel Size and Geometric Magnification
Voxel size determines the smallest detectable feature. For fine internal structures, smaller voxels are essential, but they also increase scan time and data volume. Geometric magnification, achieved by adjusting the source-to-object and object-to-detector distances, plays a key role in voxel resolution.
Our V|tome|x M Neo system offers versatile scan geometry with adjustable source to detector distance and variable focal spot sizes, enabling users to optimize magnification and voxel size for large and small parts.
While our Phoenix Nanotom® HR system delivers submicron resolution, ideal for microelectronics and additive manufacturing inspections.
3. Number of Projections
More projections improve image reconstruction but increase scan time. For complex geometries, especially those with occluded features, a higher number of projections ensures better angular coverage and reduces reconstruction artifacts.
With Datos|x reconstruction software, Waygate Technologies enables intelligent projection management and artifact correction.
4. Filter Selection
Filters shape the X-ray spectrum to reduce beam hardening and improve contrast. For multi-material parts, selecting the right filter (e.g., copper, aluminum) can significantly enhance image quality.
Our systems support a wide range of filter materials and thicknesses, allowing users to fine-tune spectral output for specific inspection needs.
5. Scan Trajectory and Motion Control
Helical or offset scanning trajectories can help avoid cone-beam artifacts in tall or irregular parts. Precision motion control ensures consistent alignment and repeatability.
Waygate’s Phoenix V|tome|x M Neo supports advanced scanning trajectories and automated part handling for high-throughput environments.
Application Spotlight: Additive Manufacturing
Additive manufacturing (AM) components often feature internal channels, lattice structures, and variable wall thicknesses - making them notoriously difficult to inspect. CT is the only method capable of capturing their full internal geometry nondestructively.
Waygate Technologies has partnered with leading AM manufacturers to develop tailored CT workflows that optimize scan parameters for powder-bed fusion, binder jetting, and DED parts. Our systems support:
- High-resolution scanning for micro lattice inspection
- Automated defect detection using AI algorithms
- Dimensional verification against CAD models
Explore our solutions for additive manufacturing inspection.
Best Practices for CT Parameter Optimization
- Start with a test scan using default parameters, then iteratively adjust based on image quality.
- Use phantoms or reference parts to benchmark resolution and contrast.
- Leverage software tools for simulation and parameter prediction.
- Document and standardize optimized settings for repeatability.
- Train operators on the impact of each parameter and how to interpret scan results.
The Waygate Advantage
As a global leader in industrial inspection, Waygate Technologies combines decades of NDT expertise with cutting-edge CT innovation. Our systems are designed to adapt to your inspection challenges, whether you're scanning turbine blades, composite structures, or semiconductor packages.
We offer:
- Customizable CT platforms for lab and production environments
- Expert application support to help you optimize every scan
- Continuous innovation in AI, automation, and digital workflows