Time of Flight Diffraction (TOFD)

Course Price


Course length

40 Hours


Ultrasonic Testing Level I & II

Equipment Needed

Equipment Provided


Time of Flight Diffraction (TOFD)

Ryan Alcott

Ryan Alcott has established himself as a premier ultrasonic technician in the industry. Holding multiple level III certifications along with plenty of 3rd party certifications. Ryan brings that knowledge to the class. He encourages his students to interact in the lessons and take advantage of his experiences.

About the course

Time of Flight Diffraction (TOFD) is a nondestructive testing (NDT) method of inspecting materials for flaws using soundwaves to detect cracks in welds. TOFD utilizes the principle that the tips of a crack when struck by a soundwave will diffract the signals back to the other location on the surface.
During the classroom training students will learn the requirements to become Qualified & Certified to perform Time of Flight Diffraction (TOFD). The course covers aspects of TOFD inspection such as basic principles, equipment, test techniques, and more. Classroom and practical application ensure that all students complete the course with the complete understanding of TOFD Testing.
Time of Flight Diffraction (TOFD) course allows students who wish to obtain the required 40 hours of classroom training in accordance with SNT-TC-1A and CP-189. The curriculum encompasses the body of knowledge outlined in CP-105 in addition to hands on training.

Time of Flight Diffraction Classroom Training Outline
1.0 Introduction to TOFD
2.0 Basics principles of TOFD
3.0 Equipment overview
4.0 Testing Techniques
5.0 Standardization
6.0 Data Collection
7.0 Procedures
8.0 Weld inspections
8.1 Data Evaluation