News tagged with radiation
Related topics: radiation therapy , chemotherapy , radiation oncology , cancer , nuclear power plant
Radiation
In physics, radiation describes any process in which energy emitted by one body travels through a medium or through space, ultimately to be absorbed by another body. Non-physicists often associate the word with ionizing radiation (e.g., as occurring in nuclear weapons, nuclear reactors, and radioactive substances), but it can also refer to electromagnetic radiation (i.e., radio waves, infrared light, visible light, ultraviolet light, and X-rays) which can also be ionizing radiation, to acoustic radiation, or to other more obscure processes. What makes it radiation is that the energy radiates (i.e., it travels outward in straight lines in all directions) from the source. This geometry naturally leads to a system of measurements and physical units that are equally applicable to all types of radiation.
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US approves radiation-based prostate cancer drug
(AP)—The U.S. Food and Drug Administration has approved a new injectable drug that uses radiation to treat advanced prostate cancer that has spread to the bones.
Cancer
May 15, 2013 |
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Skin cancer may be linked to lower risk of Alzheimer's disease
People who have skin cancer may be less likely to develop Alzheimer's disease, according to new research published in the May 15, 2013, online issue of Neurology®, the medical journal of the American Academy of Neurology. The li ...
Alzheimer's disease & dementia
May 15, 2013 |
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