Training
Aletheia provides a range of X-ray CT training courses for both new and experienced users:
- The Introductory course focuses on the fundamental principles and good practice underpinning X-ray CT, ensuring trainees have a good knowledge of the instrument hardware principles and what constitutes good data collection.
- The Intermediate course builds upon these fundamental principles by introducing users to the correct use of 2D radiographic Image Quality Indicators (IQIs) for X-ray instrument optimisation, use of 3D IQIs for the optimisation of X-ray CT reconstructed scan data, and the signal profiling techniques employed in ASTM standards for defining spatial resolution.
- The Advanced course introduces users to the VDI/VDE 2617 & VDI/VDE 2630 standard for voxel calibration and the advanced principles behind image quality for spatial resolution and defect metrology measurement confidence.
Aletheia provides X-ray CT software analysis for basic, advanced, machine learning feature segmentation and measurement parameters for industrial Non-Destructive Evaluation (NDE) and visualisation for a number of commercial software packages:
| Course | Level | Suitability | Online / in-person course |
|---|---|---|---|
| Introduction to X-ray CT Theory & data collection techniques | 1 | New industrial & academic users of X-ray CT | Online |
| Optimising X-ray CT instrument setup & use of IQI | 2a | Experienced Industrial X-ray CT operators wanting to optimise data quality & consistency | In-person |
| Data analysis & visualisation | 2b | New industrial & academic users wanting to learn basic and advanced feature segmentation and analysis of reconstructed data | Online |
| Defect metrology in X-ray CT | 3 | Experienced Industrial X-ray CT operators wanting to understand VDI/VDI voxel standards, ASTM image quality and measurement confidence to industrial applications | In-person |
Level 1
Introduction to X-ray CT Theory and data collection techniques (Online course)
Two day course that focuses on the fundamental principles behind X-ray CT and best practice for data collection. The course is ideal for those looking to use X-ray CT for None Destructive Evaluation (NDE) and how to maximise data quality. The course covers the following topics:
- Overview of X-ray CT stages in data collection and processing
- Brief history of X-ray CT development
- Radiation safety when working within laboratories
- Instrument hardware components, functions and options
- X-ray CT principles for calculating magnification, pixel size and instrument setup
- Tomographic reconstruction principles, reconstruction artefacts and how to avoid or minimise these
- Basic principles of data segmentation and analysis (very brief intro)
- Optimising specimen preparation
- Fundamentals to metrology and good practice
“Despite cultural and international time differences with South Korea, the Aletheia team were more than happy to adapt a bespoke online training course that not only fit with the needs of the participants, but that was also delivered during normal working hours half a world away. The flexibility shown ensured everyone got the most out of the allotted training. Setting aside time within the training schedule for individuals to discuss their own projects and challenges with X-ray Computed Tomography fostered open and collaborative discussions among participants. These discussions were accompanied by realistic and actionable solutions from the Aletheia team, clearly fuelled by real world experiences gained over many years using X-ray Computed Tomography.” – Richard Foster Research Assistant Professor South Korea National University
Level 2
Optimising X-ray CT instrument setup & use of Image Quality Indicators (IQI)
Two day in person training course focussed on the use of both 2D and 3D Image Quality Indicators (IQI).
- Setup of 2D IQI for optimising radiographic spatial resolution
- Setup of 3D IQI for optimising reconstructed spatial resolution
- Data collection methods and the effect on data quality
- Signal processing for spatial resolution calculations and ASTM standards
- Software calculations for spatial resolution for both 2D & 3D IQI
Level 3
Defect metrology in X-ray Computed Tomography (CT)
Two day in person course that covers voxel calibration, the principles behind image quality and defect detection in X-ray CT. The course contains information on how X-ray instruments and scan setup can be optimised for the detection of defects in components:
- Overview of X-ray CT & metrology for NDE
- Basic configuration of X-ray CT instruments
- Voxel calibration techniques and ruby sphere gauges
- Calibrating voxel size & metrology X-ray CT systems
- Image quality and spatial resolution
- Optimisation of X-ray instrument geometric setup
- X-ray CT reconstruction parameters and the effect on spatial resolution
- Application of Image Quality Indicators for spatial resolution, measurement confidence of defects
“The training that Aletheia provided covered a broad range of practical and theoretical CT topics. They offered an online and in-person training that gave us a hands-on opportunity to gain experience with their software and setting up their spatial resolution IQI for imaging. Tristan proved to be extremely knowledgeable with regards to explaining the many factors to account for when setting up a CT scan. Everyone that attended the class came away with a much better understanding of CT defect and dimensional metrology, which are topics not typically covered in other CT classes.” – Joseph Hashem, Research & Development Engineer at Los Alamos National Laboratory