There are only two types of radiation.
1. Electromagnetic
Under this we have gamma radiation, X radiation, light and heat
2. Particle radiation
Under this we have alpha and beta.
The three main types of radiation include alpha radiation and most of this type is not able to penetrate the skin but can be dangerous if inhaled or swallowed. Beta radiation can penetrate the skin to where the new cells are made. Gamma rays and x-rays are electromagnetic and highly penetrating.
The radiation one typically encounters is one of four types: alpha radiation, beta radiation, gamma radiation, and x radiation. Neutron radiation is also encountered in nuclear power plants and high-altitude flight and emitted from some industrial radioactive sources. # Alpha Radiation
Alpha radiation is a heavy, very short-range particle and is actually an ejected helium nucleus. Some characteristics of alpha radiation are:
#* Most alpha radiation is not able to penetrate human skin.
#* Alpha-emitting materials can be harmful to humans if the materials are inhaled, swallowed, or absorbed through open wounds.
#* A variety of instruments has been designed to measure alpha radiation. Special training in the use of these instruments is essential for making accurate measurements.
#* A thin-window Geiger-Mueller (GM) probe can detect the presence of alpha radiation.
#* 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 short distance (a few inches) in air, but is not an external hazard.
#* Alpha radiation is not able to penetrate clothing.
Examples of some alpha emitters: radium, radon, uranium, thorium.
# Beta Radiation
Beta radiation is a light, short-range particle and is actually an ejected electron. Some characteristics of beta radiation are:
#* Beta radiation may travel several feet in air and is moderately penetrating.
#* Beta radiation can penetrate human skin to the "germinal layer," where new skin cells are produced. If high levels of beta-emitting contaminants are allowed to remain on the skin for a prolonged period of time, they may cause skin injury.
#* Beta-emitting contaminants may be harmful if deposited internally.
#* Most beta emitters can be detected with a survey instrument and a thin-window GM probe (e.g., "pancake" type). Some beta emitters, however, produce very low-energy, poorly penetrating radiation that may be difficult or impossible to detect. Examples of these difficult-to-detect beta emitters are hydrogen-3 (tritium), carbon-14, and sulfur-35.
#* Clothing provides some protection against beta radiation.
Examples of some pure beta emitters: strontium-90, carbon-14, tritium, and sulfur-35.
# Gamma and X Radiation
Gamma radiation and x rays are highly penetrating electromagnetic radiation. Some characteristics of these radiations are:
#* Gamma radiation or x rays are able to travel many feet in air and many inches in human tissue. They readily penetrate most materials and are 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 respectively constitute mainly an external hazard to humans.
#* Gamma radiation and x rays are electromagnetic radiation like visible light, radiowaves, and ultraviolet light. These electromagnetic radiations differ only in the amount of energy they have. Gamma rays and x rays are the most energetic of these.
#* Dense materials are needed for shielding from gamma radiation. Clothing provides little shielding from penetrating radiation, but will prevent contamination of the skin by gamma-emitting radioactive materials.
#* Gamma radiation is easily detected by survey meters with a sodium iodide detector probe.
#* Gamma radiation and/or characteristic x rays frequently accompany the emission of alpha and beta radiation during radioactive decay.
Examples of some gamma emitters: iodine-131, cesium-137, cobalt-60, radium-226, and technetium-99m. The information and material posted on this Web site is intended as general reference information only. Specific facts and circumstances may alter the concepts
THere are as many types of radiation as there are of my dick
Alpha, Beta and Gamma/X Radiation alpha radiation, beta radiation and gamma X-rays radiation
X-Rays
they project to the primary visual cortex
This is illogical question.hahah because as u know solar radiations are available everywhere and so we can generate energy from everywhere using solar radiations. This is the most cheap source of energy.It requires only one time cost and lasts for many years. In this process we use a solar panel which is made of silicon,the solar radiations fall on this panel and convert these radiations into electric d.c voltages and these d.c voltages convert into a.c voltages by using inverters.
Infra red radiations are invisible to our vision. Only red to violet are visible. But when the object emitting infra red radiations is in a dark place, then the object too cannot be seen.
If it is sun glasses than we use it to save our eyes from the radiations of sun.
2 types: A.Physical and B.Biochemical
Ultraviolet rays are blocked. It helps prevent radiations enter our eyes.
As your teacher..............
Yes they can. They are a form of electromagnetic rays and all types of electromagnetic radiations can travel in vacuum
Radiations within the range of 200 - 400nm are Visible Radiations. And others out of this range are invisible radiations.
Ozone layer protects us from harmful radiations. UV radiations are these rays.
They emit radiations because of their glow in the dark properties which is brought out by radium and tritium which are radioactive and clearly emit radiations.
The radiation given off by the sun is electromagnetic waves. The waves are made up of two types of rays ultraviolet and infrared.
The ozone hole allows some radiations to reach the earth's surface. These radiations are high energy UV radiations.
Ozone absorbs UV radiations. They are high radiations rays.
Uv radiations are the radiations released from the sun. These radiations are fatal for life. Ozone layer protects us.
Light is a form of energy and is formed by various kinds of radiations.For example :- the sunlight consists of visible radiations, UV radiations and infrared radiations