1: Controls and Standards Flashcards
What is radiography?
Producing a photographic image of an opaque specimen by penetrating with radiation.
Ex. X-rays, gamma, charged particles, neutrons.
What is the CNSC responsible for?
Responsible for the use of nuclear substances, certifies all nuclear workers and implements application of the Nuclear Safety and Control Act
What is a radiograph captured on?
Photosensitive film, fluorescent screens or electronic data receptors (then transferred onto a computer display)
When taking a radiographic image, the source of radiation may be in what? 2 options.
An X-ray tube or a capsule containing the radiographic material.
What does a darker image on a shadow picture mean?
More radiation was able to pass through - a thinner piece of the material
What 3 things play a role in producing light/dark contrast on the radiograph?
- Intensity - # of rays
- Energy - penetration power
- Exposure time
Who are the 3 regulatory bodies that CEDO’s go through for certification levels?
Certified by CNSC, exam by CSA and administered through NDT Certifying Body.
What are the duties of a RT L1?
- Can work with radioactive source/tube.
- Calibrate/examine material to specific instructions
- Maintain records.
- Apply techniques based on specifications.
What are the duties of an RT L2?
- Determine capabilities and limitations of a method.
- Supervise/train new workers.
- Establish/apply techniques.
- Interpret, evaluate and report results according to codes and standards.
What are the 4 regulatory bodies who’s codes and standards you will be interpreting, evaluations and reporting results according to?
- ASME - American Society of Mechanical Engineers
- ASTM - American Society of Testing Materials
- API - American Petroleum Institute
- CSA - Canadian Standards Association
What are the duties of an RT L3?
- WIDE knowledge of materials technology.
- Familiar with other NDT inspection methods.
- Interpret standards/codes to establish correct techniques.
- Develop training and certification programs.
What is depleted uranium?
Uranium that contains uranium-235 in a concentration LESS than normally found in nature.
What is nuclear criticality?
Self-sustaining chain reaction of nuclear fission.
What is the act that ensures the development, production and use of nuclear power/substances in Canada does not present a risk to national security, health & safety or the environment?
Nuclear Safety and Controls Act (NSC).
What is the CNSC’s mandate?
Regulate development, production, use of nuclear energy and production, possession of use of nuclear substances….
