1. [http://herschel.jpl.nasa.gov/images/EM_Spectrum-Graphic_new_550.jpg]

2. Types of Radiation Non-Ionizing radiation is low energy and does not change atoms. Examples: Light, Radio Waves, Microwaves.

3. Types of Radiation Ionizing radiation has high energy and can remove electrons from other atoms. Examples: X-Rays and Gamma Rays

4. Click here for the EPA descriptions of types of radiation. [http://www.epa.gov/radiation/graphics/spectrum_right.jpg]

5. Nuclear Physics The nucleus of an atom is held together by the strong force. [http://www.lbl.gov/abc/wallchart/chapters/01/graphics/nucleus.jpg]

6. Nuclear Physics When the strong force fails, p + or n can escape, and the atom is radioactive. [http://www.nmsu.edu/~safety/images/signs/symbol_radiation_lg1.gif]

7. Radiation & Health The amount of radiation a person receives in a year can be measured in rems. (Roentgen Equivalent Man) 1 rem = 1000 mrem (millirem)

8. Radiation & Health Stochastic (long term) exposure to radiation can include health effects such as DNA mutation & Cancer Average US citizen receives 360 mrem per year. (0.36 rem) EPA guidelines allow for 5000 mrem per year if working around radiation as a job. (5 rem)

9. Radiation & Health Non-Stochastic (short term) exposure can include health effects that lead to massive cell death and “radiation sickness” [http://wps.prenhall.com/wps/media/objects/602/616516/Media_Assets/Chapter22/Text_Images/FG22_TB05.JPG] Click here for EPA descriptions of health limits