Radiography Testing (RT) Level-2
Course Description:
1. Introduction- Radiography history & basic review ,fundamental Properties of Matter
2. Radioactive Materials- Radioactivity, Nuclear fission, Specific activity, Radioactive source.
3. Types of Radiation-Plot Radioactive decay curve, Electromagnetic radiation production– X-ray & gamma ray
4. Radiation Interaction with Matter-.Photoelectric effect, .Compton scattering, .Pair production, Unit of radiation exposure,, Emissivity of commonly used radiographic sources and X-ray exposure devices , Attenuation and shielding, HVL & TVL.
5. Biological Effects of Radiation- Radiation dose, Allowable personnel-exposure limits, Radiation damage - repair concept, Symptoms of radiation injury Acute radiation exposure and somatic injury, Personnel monitoring for tracking exposure, Organ radiosensitivity, ALARA (as low as reasonably achievable) concept.
6. Radiation Detection-Personnel Monitoring-Daily dosimeter readings "Off-scale" dosimeter - action required.
7. Radiation Detection- Survey Instruments, Ionization chambers, Radiation Survey Reports, Radiographic Work Practices, Establishment of restricted areas, Shielding to reduce personnel radiation exposure, Radiographic Work practice & Radiation Survey Report.
8. Basic Principles of Radiography- Radiography process, characteristics of X-rays and gamma rays, & difference between them, Geometrical unsharpness, Penetrameter sensitivity, Source-to-film distance, Focal-spot size, Radiographic screens, Filters, masks, diaphragms; and collimators, Radiographic cassettes, The "heel effect" with X-ray tubes.
9. Radiographs- Inherent un-sharpness, Gamma-ray exposure chart, Calculation of exposure time for gamma and X-ray sources, Characteristic H & D curve, Film selection-speed and class descriptions.
10. Film Handling, Loading and Processing- Types of films, Film processing Automatic vs. Manual & Film storage.
11. Radiographic Image Quality- Unsatisfactory radiographs - causes and cures, Penetrameters or IQIs, Radiographic sensitivity and contrast, Film and subject contrast, Film graininess.
12. Radiography Exposure Techniques – Single & double-wall , Offset double-wall exposure single-wall viewing , Viewing two walls simultaneously, Panoramic radiography.
13.Radiographic Viewing- Film-illuminator requirements, Penetrameter placement, Film identification, Location markers, Film-density measurement.
14. Standards, Codes, Specifications and Reports- Interpretation of radiography standards, codes and specifications , Establishing Reports.
15. Special Radiographic Sources and Techniques- Fluoroscopy/Real Time, Flash radiography, Stereo radiography, In-motion radiography, Autoradiography, Neutron.
16. Industrial Materials and Manufacturing Processes
17. Instruction Writing- Prepare a detailed NDT instruction on the testing of a sample and to prove the instruction by application
Course Schedule:
| Dec 3-14, 2007 |
Jun 2-13, 2008 |
| Sep 22-Oct 3, 2008 |
|
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