Xray

X-rays are electromagnetic waves unspoiled like visible light, radio set waves and microwaves. They have a wavelength range of roughly 0.01 to 10 nms (1 nanometre = 1 billionth of a meter). When talking about roentgen ray imaging, however, its easier to think of roentgenograms in terms of photons. Photons are like junior-grade wave packets and electromagnetic waves jakes be described as a big collection of photons. X-rays are generated in an roentgenogram tube (unsurprisingly). Basically, a bunch of negatrons are shot at a piece of metal (usually tungsten, the same metal cod in old school incandescent light bulbs). at a time what happens next is a little complicated, tho really coolheaded So the electron travels at a certain speed up toward the piece of tungsten; it has energizing goose egg, which is the energy of motion. But as it gets close to the Tungsten it impart run into an electric force field produced by the metal, and entrust actually slow conquer. X-ray Tube Now, in physics there is principle called the conservation of energy. Basically this just says that energy can never be created or destroyed, it can except change form. So when the kinetic energy (energy of movement) of the electron drops (when it slows down) that woolly-headed energy has to go somewhere. Where it goes, in fact, is in the multiplication of an x-ray. The electron will actually emit an x-ray when it gets slowed down by the tungsten. Pretty sweet eh? Schematic of X-ray tube. Electrons bring by in from the bottom, strike the tungsten target (the anode) and emits x-rays This is actually a type of radiation called Bremsstrahlung, which is German for braking radiation. Schematic plot of Bremsstrahlung Ok, so now we got x-rays, how do we make an image? Well, if we force out x-rays at, oh lets say, YOU! the x-rays will interact with your body. How you ask? Well when an x-ray passes by dint of the body, it ma y get absorbed or scattered by the body. An ! x-ray gets absorbed when the x-ray hits an electron in our body, and the...If you penury to get a full essay, order it on our website: OrderEssay.net

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