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by : BTF

Tuesday 29 March 2011

Compton Effect


Another way radiation interacts with atoms is the Compton effect, where the radiationscattered by nearly free-electron weakly bound to the atom. Part of the radiationenergy given to electrons, so that regardless dar atom, the remaining energyre-radiated as electromagnetic radiation.

The occurrence of Compton Effect to diperumpamakan like billiard balls moving andpounding that others like the following:

Take two billiard balls of different colors. Put that one in the middle of the table
billiard (Ball 1). Put the other on the edge of a pool table (Ball 2). Then
Ball pool 2 to hit the ball first. There will be a collision. Note that
The ball 2 after collision rate will be slower than the speed of the ball 2 before
collision. Do not try to make the second ball hit the ball 1 with the corner
Different scattering is due partly beda.Hal energy and momentum of the ball 2 will betransferred to the ball first. Great energy and momentum is transferred Ball 2 to theball 1 can be calculated, and this is a function of the angle formed by the speed
The ball end 2 with initial velocity ball 2 (angle scattering).

The same thing happens in Compton effect.
- Ball 1 is an electron.
- Ball 2 is the photons that hit the electrons.

Analog with second ball loses energy and momentum, the photon will lose energy
& momentum as the energy and momentum is transferred to electrons, and the
same time changing the direction of motion of photons. Great energy and momentum
photons into electrons transferred can be calculated, and this is a function of angle
which formed the initial propagation direction of propagation of photons with photonfinal
(scattering angle). The result of this calculation is the equation of the photonwavelength shift in Compton effect.

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