Transcription of Compton Scattering - High Energy Physics
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Compton Scattering - High Energy Physics
(revised 4/27/01) Compton ScatteringAdvanced Laboratory, Physics 407 University of WisconsinMadison, Wisconsin 53706 AbstractThe Compton Scattering of the 662 keV gamma rays from the decay ofCs137is measured using a Sodium Iodide detector. The scattered Energy andthe differential cross section are both measured as a function of scatteringangle, and the results are compared to the full relativistic quantum theoryof Compton effect is the elastic Scattering of photons from a reaction, the process is: +e +e .Since this is a two body elastic Scattering process, the angle of the scat-tered photon is completely correlated with the Energy of the scattered photonby Energy and momentum conservation. This relation is usually written as: = =hmc(1 cos )(1)where and are the wavelengths of the incident and scattered photonrespectively, and is the photon Scattering Energy of a photon is related to its frequency and wavelength as:E=h =hc/ (2)wherecis the velocity of light.
tered photon is completely correlated with the energy of the scattered photon by energy and momentum conservation. This relation is usually written as: ∆λ = λ0 −λ = h mc (1−cosθ) (1) where λ and λ0 are the wavelengths of the incident and scattered photon respectively, and θ is the photon scattering angle.
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