The Different Types of Radiation
There are four types radiation: alpha radiation, beta radiation, and
gamma radiation. Neutron radiation is also encountered in nuclear
power plants and high-altitude flight and emitted from some industrial
radioactive sources.
[IMAGE][IMAGE][IMAGE]Alpha Radiation
Alpha radiation is a heavy, very short-range particle, and actually an
ejected helium nucleus. Alpha radiation is not able to penetrate human
skin, but Alpha-emitting materials can be harmful to humans if the
materials are inhaled, swallowed, or absorbed through open wounds. A
variety of instruments have been designed to measure alpha radiation.
An example is a thin window Geiger-Mueller (GM) probe which can detect
the presence of alpha radiation. Although, Instruments cannot detect
alpha radiation through even a thin layer of water, dust, paper, or
other material, because alpha radiation is not penetrating. Alpha
radiation travels only a few inches in air, but is not an external
hazard. Some examples of alpha emitters are: radium, radon, uranium,
and thorium.
Beta Radiation
Beta radiation is a light, short-range particle, and actually an
ejected electron. Beta radiation may travel several feet in air and is
moderately penetrating. Beta radiation can also penetrate human skin
to the "germinal layer," where new skin cells are produced. If high
levels of beta emitting sources are allowed to remain on the skin for
a certain period of time, they may cause a skin injury. Most beta
emitters can be detected with a survey instrument and a thin-window GM
probe. Some beta emitters, however, produce very low-energy, poor
penetrating radiation that may be difficult or impossible to detect.
Examples of some pure beta emitters: strontium-90, carbon-14 and
tritium.
Gamma Radiation
Gamma radiation or x rays are very long range, penetrating
electromagnetic radiation. Gamma radiation is able to travel many feet
in air and many inches in human tissue. It readily penetrates most
materials and is sometimes called "penetrating" radiation. X rays are
like gamma rays. X rays, too, are penetrating radiation. Sealed
radioactive sources and machines that emit gamma radiation and x-rays
Apart of becoming a new patient at a dental office is taking an x-ray and some may have question along with taking an x-ray, like “will I be affected by the x-ray?” or “will I get cancer?”, “how long will it take” “are x-ray’s safe?”, the list goes on and on. So in this paper we will talk about different types of radiation affects such as affects on children and pregnant women as well as some things that may help reduce some of the radiation that may harm the human body.
Heat and x-rays are an example of radiation. A type of non-ionizing radiation is radiofrequency radiation. (Cancer 1) If radiofrequency radiation is engrossed in large amounts of materials containing water and food it can produce heat. This can lead to burns, tissue damage, and harm DNA cells. Heat is the main effect of exposure to radiofrequency. (Cancer 2)
The definition of radiation is the emission of energy electromagnetic waves or as moving subatomic particles, especially high-energy particles that cause ionization. One of the scientist who discovered radiation was Henri Becquerel, the way the French scientist discovered radioactivity was when we was conducting an experiment with uranium-bearing crystals to sun light, then put it on a photographic plate, he then had set off his experiment for a few days because it was very cloudy and the sun wasn’t shining so Henri put the sample uranium and the plate the same sealed drawer. When he went to get the uranium and photographic plate, Becquerel then discovered that the crystals left a clear image on the photographic plate, Henri wondered how that could happen because there was no energy to produce the image but Henri then discovered that a piece of mineral which contained uranium could produce its image on a photographic plate without light, Henri realized that it was radioactivity. Ernest Rutherford among his many accomplishments one of them were the way he took part in radioactivity by...
The third type of radiation is gamma radiation. Gamma radiation and X-rays are part of the electromagnetic radiation like visible light, radio waves, and ultraviolet light. These electromagnetic radiations differ by the amount of energy's they have. Gamma radiation can penerate through most materials including skin, it can travel very deep in human tissues as well. Gamma radiation has abosolutly no mass and is able to travle in the speed of light. It is very fast and very strong. When radioactive materials release gamma radiation it can be both externally and internally hazards for humans.
Radiation therapy is the utilization of radiation in order to treat diseases like cancer as well as to detect other ailments that someone may have. Since the development of radiation therapy many advancements have been made both to the process of using radiation itself, which in turn increased its effectiveness for medical use, and to the study of other possible uses for radiation. The concepts behind radiation therapy are not overly complicated, but they are still revolutionary ideas that have greatly impacted society and people’s wellness.
Radiation is something that the naked eye cannot see, yet has the potential to save lives one treatment at a time or even one image at a time. Since the discovery of x-rays in 1895, it has branched out into numerous modalities each independently specializing in their own ways. X rays are used to aid in the diagnosis and treatments of patients on a case by case scenario. Sometimes doctors can make a diagnosis on the same day or conclude that a patient will require radiation therapy within weeks to follow. Whatever it may be, the importance of x rays and radiation itself is a crucial part of the medical field when it comes to saving lives. Initially it all started with the discovery of x rays but then three years later radiation therapy was introduced to aid with
The objective of this manual is to educate the dental office staff on the basics of radiography, radiation equipment, “ALARA,” infection control, film and film processing. The information provided will help reduce the patients and staffs exposure to radiation in a dental office setting.
Radiation has always been in everyday life even before Roentgen discovered x-ray. The mountains give off natural radiation, other forms of radiation are coal burning power plants, x-rays from a TV, and an airplane ride. The average dose from background radiation is about 360 mrem every year. There are two types of radiation, nonionizing and ionizing radiation. Examples of nonionizing radiation are microwaves and radio waves broadcasting. Ionizing radiation refers to gamma and x-rays. Ionizing radiation means that the rays are able to remove an electron from the atom then ions can be formed. The ions can cause damage when reacting with other atoms. Cells are able to be repaired if low dose are received. However, if cells get a high dose, the cells will be damaged or possibly die. If the cell is damaged permanently then it is referred to as a mutated cell.
(Yadav, Yadav 2013 j conserve dent). (Sabine Sennhenn-Kirchner et al, Dental therapy before and after radiotherapy–an evaluation on patients with head and neck malignancies. Clin Oral Invest (2009) 13:157–164). It is concerned with the delivery of the correct radiation dose to the tumor mass.
How does radiation in our environment affect us? In order to understand how radiation affects us, we first must understand how it is produced. Fission is the initial step. It is the splitting of uranium or plutonium atoms which produces radioactive "fission fragments" and "activation products" (Bertell, 1985). These products then ionize normal atoms, which leads to a sort of domino affect microscopically. This chain reaction can also cause activation products to be produced by causing chemicals in the air,...
Certain elements are radioactive, some occur naturally like uranium, and some are made in labs artificially. When atoms of an element decay they release radiation, this process is known as radioactivity. The remains of the broken atoms become smaller atoms of a different element.
Food irradiation has the longest history, more than 40 years, of scientific research and testing of any food technology before approval. Research has been comprehensive, and has included wholesomeness, toxicological, and microbiological evaluation. Worldwide, 38 countries permit irradiation of food, and more than 28 billion lb of food is irradiated annually in Europe. It is important to note that food irradiation has a pretty remarkable list of national and international endorsements: ADA, American Council on Science and Health, American Medical Association, Council for Agricultural Science and Technology, International Atomic Energy Agency, Institute of Food Technologists, Scientific Committee of the European Union, United Nations Food and Agricultural Organization (FAO), and the World Health Organization (WHO).
Light can be classified as a form of electromagnetic radiation, which includes visible light. The ‘light’ commonly referred to in everyday life belongs in this category. The electromagnetic spectrum includes other types of radiation such as gamma rays, radio waves and cosmic rays, all of which possess distinct wavelengths, frequencies and energy levels. These forms of electromagnetic radiation are not visible to the human eye but can be perceived by selected species of animals, such as bees. Figure 1 below displays the electromagnetic spectrum and provides a basic insight into the respective characteristics of different forms of radiation.
What is Radiation? Radiation is a A form of energy carried by waves or a stream of particles. Radiation is a fragment that is capable of ionizing atoms or molecules isolating electrons from them due to its sufficiently possessed energy when it is passed through them. Radiations include alpha, beta and gamma rays. They can cause severe damage when absorbed by living tissue, and are therefore a health hazard they can effect the repairing ability of living cells. Ionizing radiation consists of subatomic particles or electromagnetic waves that are energetic enough to detach
Radiation is one of the most dangerous and easiest way of having health effects. Radiation was first discovered by Roentgen. Hazards are the first things people need to know in order to understand what it can do to your body. It causes many health effects on everyone out in the world. It harms people in the dentistry and field and even in the medical field. Normal people out the world can also be exposed when coming into one of these offices and getting x-rays of some type.