Identify a number of applications of radiation to science and technology today.
Explain light refraction as applied to rainbows that appear in nature.Describe which objects reflect, absorb or transmit light.Explain the properties of light as related to security systems.Students consider the potential real-world uses of various types of radiation in questions 2 and 5-9 of the post-activity assessment handout.Īfter this activity, students should be able to: For cancer radiation treatments, control of high-energy radiation can be beneficial, but must be carefully managed. Engineers must also be aware of safety concerns even low doses of high-energy radiation can be dangerous, especially in the case of gamma radiation. In x-ray imaging, various tissue types result in a range of transmittances that can be recorded to depict bones on x-ray film. The concepts of wave absorption and transmission are fundamental in the design of laser based security systems, and have additional applications in biomedical engineering. In designing laser-based security systems, engineers consider the implications of the penetrating properties of electromagnetic radiation. Copyright © Erik Christensen, Wikimedia Commons
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