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Radiation prot 3&7
Radiation Protection Ch 3 & 7a Test Review
Question | Answer |
---|---|
What are the occupational radiation exposure limits? | Whole Body 5 rem, Lens of the Eye 15 rem, Extremities & Skin 50 rem. |
What is the greatest source of radiation to the operator of x-ray equipment? | The patient |
What radiation units would the Cabrillo RT students dosimetry badges be expressed in? | rem |
In regards to the mother receiving x-ray, when is the relative risk the highest for the fetus? | Within the first trimester |
What is the Cumulative Effective Dose? What is the radiation unit? How would it be determined? | The Collective Effective Dose describes low doses of ionizing radiation exposure of a population or a group. The person-seivert. The # of people x the average effective dose. |
What are the Regulatory Agencies the enforce radiation protection standards? | NRC, Agreement States, EPA, FDA, OSHA. |
Which regulatory agency mandates that a Radiation Safety Committee (RSC) be in place? Which agencies recommendations do they use for review? | The NRC. The ICRP. |
How long should occupational dose records be kept? | For 7 years |
As field area & part thickness increases, what happens to the scatter factor? | The scatter factor increases |
Which type of effects are based upon proability | Stochastic Effects |
Which type of effects are biologic somatic effects of ionizing radiation that are directly related to the dose received? | Non-Stochastic |
What are the 4 organizations that set the standards for radiation protection? | ICRP, NCRP, UNSCEAR, NAS/NRC-BEIR |