Radiography Testing Level II

Course Overview

Radiographic Testing Level II builds upon foundational knowledge to prepare individuals for advanced certification in radiographic testing. The course satisfies the training requirements outlined in NAS-410, SNT-TC-1A, and NavSea Technical Publication T9074-AS-GIB-010/271, and aligns with the training subjects listed in ANSI/ASNT CP-105.

Designed to deepen understanding of radiographic techniques, equipment, and interpretation, this course reinforces key safety protocols and enhances the learner’s ability to evaluate radiographic images accurately. When combined with hands-on training under the supervision of a certified Level II or III, this course fulfills the total training hours required for Level II certification. Upon successful completion of all course material and exams, a training certificate will be issued.

Upon Completion, Learners Covers:

• Review of Level I data; applications of radiography; types of radiation; the atom; isotope production; decay process; measurement of radioactivity; specific activity; half-life; electron volt; energies of gamma sources and x-rays; ions and ionization; scatter radiation
• ALARA; methods of protection against radiation exposure; inverse square law calculations; shielding and half value layers of different materials; half value layer calculations; posting requirements
• Preparation for conducting radiation operations; gamma ray equipment; collimator; x-ray tube and operation; personnel monitoring equipment; survey meter operation and types; pocket dosimeter, film badge, OSLD, TLD, RATE ALARMS
• Radiographic quality; sensitivity, contrast, and definition; characteristic film curves; latitude; unsharpness; backscatter; geometric unsharpness; part geometry effects on radiograph
• Film processing techniques, film structure and speeds, film artifacts, and lead screen use
• Measuring radiographic quality with IQIs; Types of IQIs; placement of IQIs; exposure calculations and charts; film density and measuring of density; determining source to film distance; film viewers
• Radiographic techniques; IQI placement and shims; Parallax formula; radiograph layout for neatness and accurate information
• Computed Radiography (CR) and Digital Radiography (DR) terminology, techniques, and equipment handling are discussed; image intensifiers, linear diode arrays, DDA panels, line pair and contrast sensitivity gauges, and spatial resolution are also discussed
• Terminology discontinuities, defect, false indication, non-relative indication, relative indication; linear vs. rounded indications; classifications of discontinuities; product discontinuities; service discontinuities
• Welding processes and welding discontinuities
• Film interpretation and evaluation elements, weld discontinuities, radiographs of actual discontinuities, and casting discontinuities
• Codes; specifications; ASTM reference radiographs; procedures; reports
• Process control checks, formulas, and conversions

Meet the Instructor

Questions? Contact us at education@asnt.org

This training will meet most certification documents for Level II Radiographic Testing such as SNT-TC-1A, and encompasses the subject matter listed in ANSI/ASNT CP 105 for radiographic testing certification. Please verify that the employer’s written practice (document for certification of NDT personnel) allows for online training. Upon satisfactory completion of all training material and exams, a training certificate will be issued. Please secure this document in a safe location, as it may be needed multiple times throughout your career.

Note: Please note the contact hours being awarded for this course.  To meet the training requirements in SNT-TC-1A, CP-189, and NAS-410, the student must complete the eLearning course and the necessary practical lab/hands-on sessions. These lab sessions must be overseen and documented by a Level III to ensure the required training hours are fulfilled.