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Radiation Safety
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Radiation safety is the practice of protecting people and the environment from the harmful, ionizing effects of radiation through principles like minimizing exposure time, maximizing distance, and using shielding. Guided by the ALARA (As Low As Reasonably Achievable) principle, it involves using safety equipment, monitoring, and regulations to manage risks in medical, industrial, and research settings.  Key Principles of Radiation Safety Time: Minimize time spent near a source of radiation to reduce the cumulative dose. Distance: Increase distance from the source. Doubling the distance... Show more
Radiation Safety
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25 Questions

1. What are the two major categories of the biological effects of ionizing radiation?

2. _____ is NOT the creation of man?

3. _____ - a material that spontaneously emits ionizing radiation?

4. ____ - the amount of time required for one half of a radioactive material to disintegrate?

5. What are the 3 elements of radiation protection?

6. What are elements classified by?

7. The background and manufactured radiation in the U.S. contributes ~_____ mrem/yr?

8. A radioactive substance _____" by ejecting an ionizing particle or emitting a gamma ray? --> these substances decay to become what?"

9. Describe the Stochastic (random) effects?

10. ____ is the act of placing a barrier between individuals (and equipment) and the radiation source?

11. ______ - a Helium atom nucleus moving at high speed with sufficient energy to cause ionization; they readily give up their kinetic energy and therefore do not penetrate very deeply into matter?

12. For the Acute Exposure - Whole body penetrating radiation, what are the effects of the following absorbed dose?

13. _____ is difficult to measure in human tissue?

14. Define the ALARA principle?

15. What are the causes and risk factors of cancer?

16. _____ - the fractional increase in the baseline incidence or mortality rate for unit dose (4 x 10^-4)?

17. What are the major types of ionizing radiation?

18. The behavior of _____ and _____ are indistinguishable from one another with regard to health effects (the energy is that determines the _____ that they can do?)

19. _____ - one of two components of an atomic nucleus that, when traveling with sufficient speed, can cause ionization?

20. What are the sources of SMALL amounts of radioactive material or radiation?

21. The amount of penetration of neutrons into matter is a function of ______?

22. What are the mandated exposure limits?

23. What are the stochastic biological effects known to occur at high doses?

24. _____ radiation causes electrons to be removed from orbit, creating an ion pair; can be either electromagnetic or particulate radiation?

25. What are the two ionizing radiation exposure effects?