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Unformatted text preview: Other types of electromagnetic radiation include television and radio waves, microwaves and visible light. The only differences between gamma rays and these more familiar forms of electromagnetic radiation are that gamma rays are generally higher in energy and that gamma rays originate in the nuclei of atoms. Alpha Alpha particles are the heaviest and most highly charged of the nuclear radiations. Without additional energy input, these characteristics make alpha particles less penetrating than beta particles and gamma rays. Their energy is used up before they get very far. Alpha particles cannot travel more than four to seven inches (10 to 18 cm) in air and are completely stopped by an ordinary sheet of paper. Their energy is spent interacting with the charged protons and electrons they meet near any surface they strike....
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This note was uploaded on 01/29/2010 for the course MPA mpa500 taught by Professor Scotts during the Spring '10 term at Acton School of Business.
- Spring '10