1
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2
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- CO 11.1
- Associated with brain-scan technology is the use of small amounts of
radioactive substances.
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3
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- Fig. 11.1
- Marie Curie, one of the pioneers in the study of radioactivity, is the
first person to have been awarded two Nobel Prizes for scientific work.
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4
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- Fig. 11.2
- The effect of an electromagnetic field on alpha, beta, and gamma
radiation.
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5
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- Fig. 11.3
- After each half-life period, the quantity of material present at the
beginning of the period is reduced by half.
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6
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7
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8
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- Fig. 11.4
- Ernest Rutherford was the first person to carry out a bombardment
reaction.
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9
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10
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- CC 11.1 Tobacco Radioactivity
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11
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- Fig. 11.6
- In the U-238 decay series, each nuclide is unstable except Pb-206.
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12
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- Fig. 11.7
- Ion pair formation.
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13
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- Fig. 11.8
- Alpha, beta, and gamma radiation differ in penetrating ability.
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14
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15
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- CC 11.2
- Irridated and nonradiated mushrooms
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16
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- Fig. 11.9
- Film badges are used to determine a person’s exposure to radiation.
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17
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- Fig. 11.10
- Radiation passing through a Geiger counter ionizes one or more gas
atoms, producing ion pairs.
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18
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- Fig. 11.11
- Components of the estimated annual radiation of an average American.
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19
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- CC. 11.3
- A commercially available kit to test for radon gas in the home.
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20
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- Fig. 11.12
- Brain scans are obtained using radioactive technetium-99, a
laboratory-produced radionuclide.
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21
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22
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23
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- Fig. 11.13
- Cobalt-60 is used as a source of gamma radiation in radiation therapy.
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24
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- Fig. 11.14
- A fission chain reaction is caused by further reaction of the neutrons
produced during fission.
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25
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- Fig. 11.15
- Enormous amounts of energy are released in the explosion of a nuclear
fission bomb.
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26
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- Fig. 11.16
- The cooling tower at the Trojan nuclear power plant dominates the
landscape. The nuclear reactor is housed in the dome-shaped enclosure.
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27
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- Fig. 11.17
- The process of nuclear fusion maintains the interior of the sun at the
temperature of approximately 15 million degrees.
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28
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29
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