Time of Flight Diffraction (TOFD) — Level 2
TOFD Level 2 certification program aligned with ISO 9712 (PCN) and SNT-TC-1A (ASNT), covering diffraction physics, equipment setup, scanning procedures, and data interpretation through online theory and on-site practical assessment.
Course Overview
This blended TOFD Level 2 programme prepares candidates for PCN and ASNT qualification in time of flight diffraction. Theory modules are delivered online, covering diffraction physics, equipment configuration, probe pair selection, calibration, and data interpretation. Practical training and examination are conducted on-site by CSWIP Level 3 certified instructors with offshore and pipeline inspection experience. The programme is suited to NDT professionals in pressure vessel, pipeline, structural, and power plant inspection where TOFD is used for volumetric examination and defect sizing.
Who Should Attend
UT Level 1 or Level 2 qualification under ISO 9712, PCN, or ASNT SNT-TC-1A. Minimum documented UT industrial experience as required by the applicable qualification scheme.
Learning Outcomes
- Explain the physics of acoustic diffraction and the TOFD measurement principle
- Identify and interpret lateral wave, backwall echo, and diffracted tip signals
- Select probe pairs, PCS, frequency, and wedge angle for specific applications
- Set up TOFD equipment and perform calibration to recognised reference blocks
- Develop scanning procedures with appropriate coverage and dead zone management
- Acquire, display, and interpret TOFD D-scan data for flaw detection and sizing
- Apply TOFD defect sizing methods and quantify sizing uncertainty
- Produce compliant inspection reports documenting TOFD examination results
Course Outline
Physics of TOFD and Diffraction
Equipment, Probes, and System Setup
Calibration and Reference Standards
Scanning Procedures and Coverage
Data Analysis and Defect Sizing
Codes, Standards, and Qualification
Topics Covered
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Training & Competency?
Contact TES to discuss available delivery dates, onsite programme options for your organisation, or customised training scope for your team's specific technical needs.