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Characteristics and Production of X-rays
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Jul 22 2008, 4:25 AM EDT
AndyC
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Bremsstrahlung is a German word meaning “braking radiation” which describes the process of xray generation. The high speed electron impacts on the target and at
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Jul 22 2008, 4:23 AM EDT
AndyC
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directions - like an apple! However as the energy of the electron beam increases the direction becomes spatially asymmetrical, projecting forward into a pear shape at 400keV, a cucumber shape at 4MV and a carrot ay
directions.
20MV!
The probability of bremsstrahlung production is
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Jul 22 2008, 4:20 AM EDT
AndyC
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(it has a low Z),
and can effectively maintain the vacuum.X-Ray ProductionX-rays are produced by two main mechanisms and come in two varieties- bremsstrahlung and characterisitic xraysBremsstrahlung xraysBremsstrahlung is a German word meaning “braking radiation” which describes
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Jul 22 2008, 4:15 AM EDT
AndyC
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'. The cathode also has a focussing cup better direct the emitted electrons across the vacuum to hit the target. The anode or positive electrode
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Feb 14 2008, 2:10 AM EST
AndyC
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Feb 14 2008, 2:10 AM EST
Jun 11 2007, 1:13 AM EDT
Anonymous
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The target stops the electrons and creates the opportunity for the production of x-rays.
The target of rotating anode tubes is made of tungsten and rhenium alloy.
Tungsten generally makes up 90% of the composition of the rotating target, with rhenium making up the other 10%.
Rotating anodes
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Jun 11 2007, 1:06 AM EDT
Anonymous
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X-rays form a polyenergetic or heterogenous beam. The x-ray beam used in diagnostic radiography comprises many photons that have many different energies.
X-rays travel
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Jun 11 2007, 12:18 AM EDT
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Created by Anonymous Jun 11 2007, 12:18 AM EDT for: no reason given
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