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The radiation emitted from the xray tube and strikes the patient directly is called?
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∙ 12y ago
primary radiation
Wiki User
∙ 12y ago
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How does heat transfer during radiation?
The kinetic energy of heat is converted into radiation (mostly infra-red) [thus the original object cools] and IF the radiation strikes some body, then the second body will warm up.
What happens When a photon strikes a solar cell?
When a photon strikes a solar cell it bounces off. In Physics, a photon is an elementary particle, the quantum of the electromagnetic interaction and the basic unit of light and all other forms of electromagnetic radiation.
How does Longitudinal waves detect the position of an object?
The Doppler effect is used in radar to provide information regarding the speed of moving targets by measuring the frequency shift between the emitted and the reflected radiation. A transmitter produces pulsed radio frequency radiation. It is fed to a movable aerial from which it is transmitted as a beam. When the beam strikes the moving vehicle a part of the energy of the radiation is reflected back to the aerial. Signals received by the aerial are passed to the receiver, where they are amplified and detected. There will be a shift in frequency of the reflected wave and emitted wave due to the Doppler effect. The apparent frequency of the reflected wave is given by F = f ( 1 - v/c ) where v is the speed at which the source and the observer are moving apart and c is the speed of electromagnetic radiation, f is the real frequency or the frequency of the emitted signal The output of the detector is usually displayed on a cathode ray tube. The apparent frequency is measured and thus the speed of the vehicle is calculated. A heterodyne device may also be used in which beats are produced by superimposing the emitted radio wave over the reflected (from the vehicle) radio wave. In the heterodyne wave meter, a variable frequency local oscillator is adjusted to give predetermined beat frequency with the incoming reflected wave, enabling the frequency of the reflected wave which has had Doppler shift to be determined. Thus the speed of the vehicle can be determined.
Does an electric grill use conduction convection or radiation?
Depending on the scenario, it could be an example of all three, but the most common transfer of energy through heat associated with a heating iron would be conduction. If this is for school and it is possible to have more than one answer, then it would be conduction and radiation.
How does heat travel as radiant energy?
An object at any temperature emits electromagnetic radiation, mainly from its surface. This can be infrared, or - at higher temperatures - visible light. This electromagnetic radiation can travel through empty space, or through air. If it strikes another object, the energy (or part of the energy) will be transfered to this other object.
The radiation that is emitted from the x-ray tube and strikes the patient directly is called?
We might call this medical imaging via X-ray, or taking an X-ray. The X-ray machine is aimed directly at the patient, and the incident radiation has a specific target on his/her body.
The atmosphere and clouds directly absorb about20 percent of the solar radiation that strikes earth How does the sun indirectly warm the atmosphere?
Earth's land and sea absorb solar radiation, then reradiate it to the air
Why does the thermosphere have the highest temperature of all the atmosphere layers?
It is affected most directly by the suns radiation
The sun's radiation is most pronounced when it's strikes?
The equator
In polar areas solar radiation strikes Earth at a?
In polar areas, solar radiation strikes Earth at a small angle. The dissipation of light in the Earth's atmosphere is increased when it falls at a shallow angle.
In polar areas solar radiation strikes earth at?
In polar areas, solar radiation strikes Earth at a small angle. The dissipation of light in the Earth's atmosphere is increased when it falls at a shallow angle.
What strikes the equator more directly?
sunlight
What product is formed when solar radiation strikes an oxygen molecule?
O2
What kind of radiation that can produce charged particles from atoms or molecules it strikes?
ionizing
What can happen when radiation strikes an object?
It can reflect, absorb or scatter off the object.
In polar areas solar radiation strikes Earth at what angle?
Small angles
Why does the thermosphere have the highest temperature all the atmosphere layers?
IT is closest to the sun
