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14 Cards in this Set
- Front
- Back
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Photon
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bundle of energy traveling through space, electromagnetic field around them
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Frequency
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# of crests or valleys which pass a point per unit of time
HERTZ |
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Wavelength
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distance from one crest to another, from one valley to another
METERS/ANGSTROMS |
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Relationship between frequency & wavelength
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INVERSE
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Velocity
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frequency x wavelength
METERS/SEC |
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Attenuation
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partial absorption on energy, reappears as heat
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Transparent
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allows light to be transmitted almost unaltered
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Translucent
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not as much light gets through as given off
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Opaque
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no light transmitted
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Radiopaque
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structure that absorbs x rays
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Radiolucent
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structures that attenuate or partially absrob x rays
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Inverse Square Law
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I1 = (D2) ^2
I2 (D1) |
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Planck's Quantum Theory
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photon energy is DIRECTLY proportinal to photon frequency
Energy= 12.4 / Wavelength KEV/ EV |
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Transform Matter to Energy...
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E= m c^2
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