Health Physics Regulations and Standards Flashcards
7 cards from real CHP practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 7 Health Physics Regulations and Standards flashcards as text
Under 10 CFR Part 20, what is the regulatory definition of a 'restricted area'?
Answer: Any area access to which is limited by the licensee for purposes of protecting individuals from exposure to radiation and radioactive materials
A restricted area is defined in 10 CFR 20.1003 as any area access to which is controlled by the licensee to protect workers from radiation exposure.
Which EPA regulation establishes environmental radiation protection standards for nuclear power operations?
Answer: 40 CFR Part 190
40 CFR Part 190 sets environmental radiation protection standards for the uranium fuel cycle, including nuclear power plant operations.
Under NRC regulations, what triggers a requirement for an individual monitoring device (dosimeter) for a radiation worker?
Answer: Likelihood of receiving >10% of the annual occupational dose limit or entering a high or very high radiation area
10 CFR 20.1502 requires monitoring of workers likely to receive more than 10% of the applicable annual limit or those who enter high or very high radiation areas.
The DOE Order 458.1 (Radiation Protection of the Public and the Environment) establishes a dose limit of how much for members of the public from DOE operations?
Answer: 100 mrem/year effective dose
DOE Order 458.1 establishes a public dose limit of 100 mrem (1 mSv) effective dose per year from DOE operations, consistent with EPA and NRC standards.
Under 49 CFR, what is the maximum dose rate allowed at the surface of a Type A radioactive material package?
Answer: 2 mSv/h (200 mrem/h)
49 CFR limits the surface dose rate of Type A packages to 2 mSv/h (200 mrem/h) at any point on the external surface.
Which of the following best characterizes the NRC's 'decommissioning' dose criterion under 10 CFR Part 20 Subpart E?
Answer: Residual radioactivity must not exceed 25 mrem/year TEDE to average member of critical group
10 CFR 20.1402 requires that residual radioactivity after decommissioning results in a TEDE of no more than 25 mrem/year to the average member of the critical group.
In radiation emergency planning, what does the term 'Protective Action Guide' (PAG) refer to, as established by the EPA?
Answer: Projected doses to the public at which protective actions (e.g., sheltering, evacuation) are recommended
EPA Protective Action Guides are projected doses at which specific protective actions (evacuation, sheltering, potassium iodide) are recommended for the public.