Level III
NR - Neutron Radiographic Testing

Topical Outline

This examination is 4 hours in length, having 135 questions of equal value.

1. Principles/Theory
   • Nature of penetrating radiation
   • Interaction between penetrating radiation and matter
   • Neutron radiography
   • Radiometry
2. Equipment/Materials
   • Sources of neutrons
   • Radiation detectors
   • Nonimaging devices
3. Techniques/Calibrations
   • Blocking and filtering
   • Multifilm technique
   • Enlargement and projection
   • Stereoradiography
   • Triangulation methods
   • Autoradiography
   • Flash Radiography
   • In-motion radiography
   • Fluoroscopy
   • Electron emission radiography
   • Microradiography
   • Laminography (tomography)
   • Control of diffraction effects
   • Panoramic exposures
   • Gaging
   • Real time imaging
   • Image analysis techniques
4. Interpretation/Evaluation
   • Radiographic interpretation
5. Procedures
   • imaging considerations
   • Film processing
   • Viewing of radiographs
   • Judging radiographic quality
6. Safety and Health

Personnel safety and radiation hazards

References

The number in parentheses following each reference is the ASNT catalog number.

• NDT Handbook: Volume 3, Radiographic Testing (144, 144CD, 144WCD)
• ASM Handbook Vol. 17, NDE and QC (105)
• Supplement to Recommended Practice No. SNT-TC-1A (Q&A Book) - Neutron Radiographic Testing Method (2031)

 

 

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