- What is background radiation and where does it come from?
- What is the most dangerous type of radiation?
- What is the difference between natural and artificial background radiation?
- What are the two top sources of natural and man made radiation?
- What is the main source of natural background radiation?
- What are the three sources of radiation?
- What is an artificial source of background radiation?
- What are the 4 types of radiation?
- What are the two types of radiation?
- What is the most powerful type of radiation?
- What types of radiation are not harmful?
- What is the average background radiation?
What is background radiation and where does it come from?
Everyone is exposed to some amount of background radiation.
This exposure primarily comes from cosmic rays, radioactive material in the earth (such as uranium-238), ingestion of naturally occurring radionuclides in food (such as potassium- 40), and inhalation of radon gas..
What is the most dangerous type of radiation?
alpha radiationAlpha, beta and gamma radiation alpha radiation is the most dangerous because it is easily absorbed by cells. beta and gamma radiation are not as dangerous because they are less likely to be absorbed by a cell and will usually just pass right through it.
What is the difference between natural and artificial background radiation?
Natural background radiation includes radiation produced by the Sun, lightnings, primordial radioisotopes or supernova explosions etc. Man-Made Sources of Radiation. Man-made sources include medical uses of radiation, residues from nuclear tests, industrial uses of radiation etc.
What are the two top sources of natural and man made radiation?
Man-Made SourcesBuilding and road construction materials.Combustible fuels, including gas and coal.X-ray security systems.Televisions.Fluorescent lamp starters.Smoke detectors (americium)Luminous watches (tritium)Lantern mantles (thorium)More items…
What is the main source of natural background radiation?
Exposure from terrestrial radiation. The composition of the earth’s crust is a major source of natural radiation. The main contributors are natural deposits of uranium, potassium and thorium which, in the process of natural decay, release small amounts of ionizing radiation.
What are the three sources of radiation?
Natural background radiation comes from the following three sources:Cosmic Radiation.Terrestrial Radiation.Internal Radiation.
What is an artificial source of background radiation?
Artificial radiation However, human activity has added to background radiation by creating and using artificial sources of radiation. These include radioactive waste from nuclear power stations, radioactive fallout from nuclear weapons testing and medical X-rays.
What are the 4 types of radiation?
There are four major types of radiation: alpha, beta, neutrons, and electromagnetic waves such as gamma rays. They differ in mass, energy and how deeply they penetrate people and objects. The first is an alpha particle.
What are the two types of radiation?
There are two kinds of radiation: non-ionizing radiation and ionizing radiation. Non-ionizing radiation has enough energy to move atoms in a molecule around or cause them to vibrate, but not enough to remove electrons from atoms. Examples of this kind of radiation are radio waves, visible light and microwaves.
What is the most powerful type of radiation?
gamma raysSo what are gamma rays? Gamma rays are the strongest from of radiation. This is what makes nuclear radiation so dangerous. This high energy form of radiation can damage human tissue and cause mutations.
What types of radiation are not harmful?
Equal doses of all types of ionizing radiation are not equally harmful. Alpha particles produce greater harm than do beta particles, gamma rays and x rays for a given absorbed dose.
What is the average background radiation?
What is Background Radiation? Naturally-occurring background radiation is the main source of exposure for most people. Levels typically range from about 1.5 to 3.5 millisievert per year but can be more than 50 mSv/yr.