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Gamma ray

Gamma rays (also called gamma radiation), denoted by the lower-case Greek letter gamma (γ or ), are penetrating electromagnetic radiation of a kind arising from the radioactive decay of atomic nuclei. It consists of photons in the highest observed range of photon energy. Paul Villard, a French chemist and physicist, discovered gamma radiation in 1900 while studying radiation emitted by radium. In 1903, Ernest Rutherford named this radiation gamma rays. Rutherford had previously discovered two other types of radioactive decay, which he named alpha rays and beta rays.

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Gamma rays cannot make 90 degree turns. When building a survival shelter adding a turn in a hallway can help protect the interior of structure. A simple modification in this design could be to thicken the entryway wall strait across from the door to block the radiation coming in from the doorway. Source: www.tinyhousedesign.com

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