Nuc Unit D, pages 316 - 334
1. Tracer studies are used in medicine to trace ____________ in body function, to locate _________ areas, and in therapy. (pg 319)
2. Which radioisotope is used to locate brain tumors?
3. Which radioisotope is used to detect bone cancer?
4. Name one use for the cell-killing properties of irradiation in medicine. (pg 321)
5. The rem measures the ability of radiation to cause __________ in human tissues. (pg 323)
6. Each mrem (millirem) increases our risk of dying from cancer by how much?
7. Minor damage to DNA molecules causes mutations; most mutations do what to the cell?
8. If the cells aren't killed, some mutations can lead to ________. (page 323)
9. Total background exposure to radiation at sea level is estimated at __________________. (page 325)
10. If someone is employed in an occupation that exposes him/her to radiation, what's the limit to the exposure he/she is permitted to receive? (page 325)
11. What health hazard is associated with radon gas?
12. How many deaths each year are believed to be due to the effects of radon gas?
13. How many isotopes are found in spent fuel rods? (page 328)
14. According to the scheme described for permanent waste disposal on page 328... how long should spent fuel rods be allowed to cool before burial?
15. Where in the world has nuclear waste been permanently buried?
16. How hot did the reactor core at Three Mile Island get when it was subjected to loss of cooling water?
17. The MIT study suggested that the risk of death due to a nuclear power plant accident is about the same as what?
18. How certain are the MIT scientists that their calculations are accurate?
Questions? Comments??
Robert Clark