Radiation Exposure - Research Article from Environmental Encyclopedia

This encyclopedia article consists of approximately 4 pages of information about Radiation Exposure.
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Effects of Radiation

The effects of radiation depend upon the type of radiation absorbed, the amount or dose received, and the part of the body irradiated. While alpha and beta particles have only limited power to penetrate the body, gamma rays and x rays are far more potent. The damage potential of a radiation dose is expressed in rems, a quantity equal to the actual dose in rads (units per kg) multiplied by a quality factor, called Q, representing the potency of the radiation in living tissue. Over a lifetime, a person typically receives 7–14 rems from natural sources. Exposure to 5–75 rems causes few observable symptoms. Exposure to 75–200 rems leads to vomiting, fatigue, and loss of appetite. Exposure to 300 rems or more leads to severe changes in blood cells accompanied by hemorrhage. Such a dosage delivered to the whole body is lethal 50% of the time. An...

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This section contains 1,009 words
(approx. 4 pages at 300 words per page)
Buy the Radiation Exposure Encyclopedia Article
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Environmental Encyclopedia
Radiation Exposure from Environmental Encyclopedia. ©2005-2006 Thomson Gale, a part of the Thomson Corporation. All rights reserved.
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