theory - jinaweb.orgarchive.jinaweb.org/outreach/pixe-pan07/presentations/compton.pdf · compton...
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THEORY
• It was thought that light had a wave nature.
• The theory behind the Compton Effect was to prove that light has a particle nature, also.
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Einstein’s Equation
• ∆E = ∆mc^2 = hf = hc/λ
– E=Energy– M=mass– C=speed of light– H=plank’s constant– λ = wavelength
• Loss of Energy = Increase in Wavelength
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Compton Effect
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angle of scattering (degrees)
ratio
of s
catte
red
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gy to
initi
al e
nerg
y Predicted Curve
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Compton Effect
0
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0 20 40 60 80 100 120 140 160 180
angle of scattering (degrees)
ratio
of s
catte
red
ener
gy to
initi
al e
nerg
y
Predicted CurveExperimental Data
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PIXE
Proton Induced X-Ray Emissions
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Copper
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Nickel
Gold (L)
Silver
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IronZinc
1943 Steel Penny
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Lead
Tin
Antimony
Pewter Medal 1st Place!!!
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