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( Radiation)
In physics, radiation is energy in the form of rapidly propagating waves or particles emitted by a body as it changes from a higher energy state to a lower energy state. Radiation can be classified as ionizing or non-ionizing, depending on its effect on atomic matter. The most common use of the word "radiation" refers to ionizing radiation. Ionizing radiation has enough energy to ionize atoms or molecules while non-ionizing radiation does not. A radioactive material is any physical material that emits ionizing radiation. Non-ionizing (or non-ionising) radiation refers to any type of electromagnetic radiation that does not carry enough energy per quantum to ionize atoms or molecules — that is, to completely remove an electron from an atom or molecule.[1] Instead of producing charged ions when passing through matter, the electromagnetic radiation has sufficient energy only for excitation, the movement of an electron to a higher energy state. Nevertheless, different biological effects are observed for different types of non-ionizing radiation.[2][3] It includes Electromagnetic radiation (sometimes abbreviated EMR) takes the form of self-propagating waves in a vacuum or in matter. EM radiation has an electric and magnetic field component which oscillate in phase perpendicular to each other and to the direction of energy propagation. sdElectromagnetic radiation is classified into types according to the frequency of the wave, these types include (in order of increasing frequency) radio waves, microwaves, terahertz radiation, infrared radiation, visible light, ultraviolet radiation, X-rays and gamma rays. Of these, radio waves have the longest wavelengths and Gamma rays have the shortest. A small window of frequencies, called visible spectrum or light, is sensed by the eye of various organisms, with variations of the limits of this narrow spectrum. EM radiation carries energy and momentum, which may be imparted when it interacts with matter.
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Radiation Subcategories
Radiation Articles
Prostate cancer society and charities by Richard Cross
For a long time prostate cancer did not get the media coverage it deserves and wasn’t understood by most people. Luckily in modern times, it is recognised as a common cancer with much effort and research goes into finding cures as well as trying to d...
Radiotherapy and Brachytherapy for prostate cancer by Richard Cross
Prostate cancer has many possible treatments, and often different treatments are used together to achieve the best results. One method of treatment is Brachytherapy, which is when a number of radiation seeds are implanted into the tumour in the prost...
Radiation Seeds For Prostate Cancer by Richard Cross
If caught early, prostate cancer treatment has a reasonable success rate. As it is a slow developing cancer in most cases, treatment is aimed at curing the patient unless the cancer has spread to surrounding bone. In this case, treatment is aimed at ...
To Keep Your Skin Young Consider Top 3 Anti-Agers Tips by Mary Waltraut
- Heavy Metal Detox
Good immune system can fight bacteria and viruses, but it can not fight the heavy metals. They are arsenic, aluminum, antimony, cadmium, lead, mercury, uranium, and others. Heavy Metals are partially responsib...
Radiation Skin Care to Make You Look Good During & After Cancer Treatment by Raphaelo Steff
Chemotherapy and radiotherapy (radiation) can change the pigmentation of the skin, its color and freshness. The most common reactions occur gradually dry skin, itching skin, acne, skin breaks out in a rash or hives, hypersensitivity to sunlight. Fina...
Sunless Tanning: How to get the most out of ultraviolet radiation tanning? by Ursula McLean
Sunless tanning is in very much vogue, how to get tanned artificially is each person’s own choice. Many people make the choice of ultraviolet radiation to get that near natural tan.
What are the benefits associated with the ultravio...
Sunless Tanning by Ursula McLean
There are several ways to get that lovely brown coat on your skin other than lying down for hours together under the sun. All the methods through which you can get that great tan without having to be under the sun is called sunless tanning. ...
Radiosurgery: Brain Surgery without the Surgery by Vantage Oncology
When tumors show up in the brain, and open surgery is not an option, radiosurgery is often the therapy turned to.
Tumors that appear in the brain do so without any known cause. Therefore, the best th...
New Prostate Cancer Movie Premieres by Rocky Galgano
For the first time, a full-length motion picture about prostate cancer has been released. “The Men’s Club”, a 2 hour 19 minute non-fiction film details all the different treatments, the side effects and the treatment for those side effects from a di...
UV Radiation and Your Skin by John Grimes
UV Radiation and Your Skin
skin, care, radiation, uv, uvb, uva, uvc, skin cancer, damage, ultraviolet, protection,
As you age, your skin begins to show signs of the wear and tear of time. Much of this aging is caused by UV radiation ...
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