Ultraviolet (UV) radiation is a form of non-ionizing radiation that is emitted by the sun and artificial sources, such as tanning beds.
Very low frequency (VLF) refers to a frequency range of 30 Hz to 3 kHz which corresponds to wavelengths of 100,000 to 10,000 meters respectively. Radiation is natural and found everywhere – it comes from outer space, the air we breathe, and the earth we tread. We’ve invested more than $4.9 billion in cancer research since 1946, all to find more – and better – treatments, uncover factors that may cause cancer, and improve cancer patients’ quality of life.We couldn’t do what we do without our volunteers and donors. Radiation is often misunderstood, but helps to save lives and cure disease. Different frequencies of radio waves have different propagation characteristics in the Earth's atmosphere; long waves may bend at the rate of the curvature of the Earth and may cover a part of the Earth very consistently, shorter waves travel around the world by multiple reflections off the ionosphere and the Earth. Radiation therapy is a type of cancer treatment that uses beams of intense energy to kill cancer cells. It originates from a variety of sources. During their flights airline crews typically get an extra dose on the order of 2.2 mSv per year. Radiation therapy is a type of cancer treatment that uses beams of intense energy to kill cancer cells. The term "radiation therapy" most often refers to external beam radiation therapy. As noted above, the lower part of the spectrum of ultraviolet, called soft UV, from 3 eV to about 10 eV, is non-ionizing. A common source of neutron radiation occurs inside a There are two sources of high energy particles entering the Earth's atmosphere from outer space: the sun and deep space. An intense flood of particles or waves will not cause ionization if these particles or waves do not carry enough energy to be ionizing, unless they raise the temperature of a body to a point high enough to ionize small fractions of atoms or molecules by the process of thermal-ionization (this, however, requires relatively extreme radiation intensities). Radiation therapy most often uses X-rays, but protons or other types of energy also can be used.The term \"radiation therapy\" most often refers to external beam radiation therapy.
Radiation therapy (also called radiotherapy) is a cancer treatment that uses high doses of radiation to kill cancer cells and shrink tumors. Much shorter wavelengths bend or reflect very little and travel along the line of sight. Radiation therapy is one of the most common treatments for cancer. A person living in Canada can expect to receive around 1.8 milli-sieverts of background radiation in one year, while the average person world-wide can expect to recive 2.4 mSv. A cancer diagnosis may mean radiation therapy.
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