Quantum physics (quantum theory, quantum mechanics)
Quantum physics (quantum theory, quantum mechanics)
Quantum physics (quantum theory, quantum mechanics)
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Before<br />
Incoming photon<br />
p <br />
Compton scattering 4<br />
Electron<br />
After<br />
p e<br />
θ<br />
p <br />
scattered photon<br />
scattered electron<br />
Conservation of energy<br />
Conservation of momentum<br />
2<br />
<br />
2 2 2 4 1/2<br />
h<br />
h<br />
mec h<br />
pec mec<br />
p ˆ<br />
<br />
i p<br />
p<br />
<br />
From this derive change in wavelength:<br />
h<br />
1cos<br />
mc<br />
e<br />
<br />
1cos<br />
0<br />
h<br />
c<br />
<br />
mc<br />
c<br />
12<br />
Compton wavelength 2.4 10 m<br />
<br />
e<br />
<br />
e<br />
17
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