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Every electromagnetic interference problem has three elements: a source, a victim and a coupling path. To stop electromagnetic interference, it is only necessary to eliminate or attenuate any one of these three elements. A good source of information concerning electromagnetic interference (including design guidelines) is the Clemson Vehicular Electronics Laboratory web site at http://www.cvel.clemson.edu. They have an electromagnetic compatibility section that has useful background information, design tools and design advice.
What else can I help you with?
What is the layer that contains your ozone shield made of?
The ozone shield is located in the stratosphere, a layer of Earth's atmosphere. It is made up of ozone molecules that absorb and block harmful ultraviolet (UV) radiation from the sun.
What gas is called the natural shield against the radiation?
Ozone shields against incoming UV radiation
What molecule acts as a shield to ultraviolet radiation from the sun is?
Molecules act as a shield to ultraviolet rays. These molecules are ozone.
Why is the apparent deterioration of the ozone layer a major concer?
The deterioration of the ozone layer is a major concern as it protects the earth as a shield. The ozone layer allows all other radiation except for high frequency ultraviolet ones which can cause damage to living organisms.
The most penetrating of the types of nuclear radiation?
Gamma rays are the most penetrating type of nuclear radiation. They are high-energy electromagnetic radiation that can pass through most materials, including skin and muscle tissue, making them difficult to shield against. Gamma rays are produced during nuclear reactions and radioactive decay.
What metal will stop shortwave radio frequency interference 100 percent?
Lead. Any conductive metal will stop electromagnetic radiation. But to shield something "100%" requires that object to be completely enclosed in the metal. Wrap yourself in aluminum foil. And no, you can't leave holes for air. Electromagnetic energy can get in that way.
What protects the earth from harmful electromagnetic radiation?
The Earth's atmosphere acts as a shield, absorbing and scattering harmful electromagnetic radiation such as ultraviolet rays from the sun. The ozone layer, located in the stratosphere, specifically filters out most of the sun's harmful UV radiation, protecting life on Earth.
The electromagnetic waves with the highest energy are?
Gamma rays--powerful enough to melt your face off. Ouch. The Earth's electro-magnetic shield, generated by a molten, spinning magnetic core, can protect us from most of the sun's radiation, but it draws the line at gamma rays.
Why background radiation can never be completely eliminated?
Because there's no way to shield yourself from all of it ... and it exists everywhere.
What is the layer that contains your ozone shield made of?
The ozone shield is located in the stratosphere, a layer of Earth's atmosphere. It is made up of ozone molecules that absorb and block harmful ultraviolet (UV) radiation from the sun.
Explain why background radiation never can be completely eliminated?
Because there's no way to shield yourself from all of it ... and it exists everywhere.
What type of radiation is the hardest to shield against?
Gamma radiation is the hardest type of radiation to shield against because it has high energy and penetrates most materials easily. Dense materials such as lead and concrete are commonly used to shield against gamma radiation.
Why are coaxial cables used for cable TV transmission and normal wires used for electricity transmission?
The simplest explanation (and therefore not completely accurate, but it will help you understand what happens) is that as the frequency of an AC signal increases the less able a wire is to contain it.at very low frequencies, including those of powerlines, the current flows easily through the entire diameter of the wireat intermediate frequencies, up to about the AM radio band, the current avoids the center of the wire, only flowing through its surfaceat high frequencies, including those used for TV, a significant amount of the AC signal escapes from a wire as electromagnetic radiation - the shield on a coaxial cable "reflects" this electromagnetic radiation back to the center conductor, preventing its lossat microwave frequencies AC will not follow a wire at all and the electromagnetic radiation is directed around through metal pipes called waveguides (analogous to a coaxial cable but without a center conductor, only the outer shield to reflect the electromagnetic radiation)
Does lead absorbs all kind of radiation?
No shielding material truly absorbs electromagnetic radiation, it attenuates it. The attenuation is by a certain amount for a certain standard thickness. The standard thickness is called the half thickness and is used to quantify shielding effectiveness for a given type of electromagnetic radiation. One half thickness attenuates the power of the given type of radiation by 50% or in decibel units -3dB. Thus the power of the radiation after a given number of half thicknesses of a given shield is:50% or -3dB25% or -6dB12.5% or -9dB6.25% or -12dB3.125% or -15dB1.5625% or -18dB0.78125% or -21dB0.390625% or -24dB0.1953125% or -27dB0.097655625 or -30dBetc.As you can see no thickness of shield material can completely attenuate electromagnetic radiation to nothing, also the higher the frequency of electromagnetic radiation the longer the half thickness is so for x-rays and gamma rays it takes very large thicknesses to get any useful attenuation.For particle radiation the situation is completely different, the radiation can sometimes be absorbed and sometimes can't:alpha particles are 100% absorbed by a single sheet of paper or the first layer of living tissue they encountermost beta particles are 100% absorbed by a single sheet of thin metal foil (e.g. aluminum foil)neutrons penetrate most matter as if it was not there, unless it contains certain elements (e.g. boron, cadmium, uranium) that have high neutron capture crosssections in which case the neutron flux is attenuated much like electromagnetic radiation as described aboveneutrinos penetrate all matter as if it was not thereetc.
What kind of radiation May require thick radiation shield?
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How is gamma radiation affected by electrical and magnetic fields?
Gamma radiation is not affected by electrical or magnetic fields because it is uncharged and does not interact with them. This allows gamma radiation to easily penetrate matter, making it difficult to shield against. However, high-energy gamma rays can be transformed into particles when passing through a strong electromagnetic field.
Can lead stop electromagnetic waves?
Lead is effective at blocking or attenuating electromagnetic waves, particularly in the form of X-rays and gamma rays. Its high density and atomic number make it an efficient shield against these types of radiation. However, lead may not be as effective for lower-energy electromagnetic waves like visible light or radio waves.
