Warning: "continue" targeting switch is equivalent to "break". Did you mean to use "continue 2"? in /home/elkadotc/public_html/plugins/system/helix3/core/classes/menu.php on line 89


Pagină web în lucru!
Partea în engleză este mai completă....

Caut student/a pentru a ajuta la corecturi, eventual traduceri.....

Newsletter subscription

Efectul Compton

And as is observed the scattered photon energy is dependent on the angle of collision. 
With this formula, any ,,common sense mind” will suppose that light has a ,,corpuscular” nature but in the same time this formula rule out the quantum idea .
The energy lost by photon is not related to a smallest chunk, but is related to an angle. In principle, this angle can take any values between 0 and 180 degree so … bye bye quantization.
Of course here is a lot of place for philosophy….. and actual theoreticians are masters in this field…
Does someone ask how is possible for a photon to know the angle of impact, and to change the exact quantity of energy in order to have a linear dependency of λ=f(θ)? Besides an already invented ,,special sense” of photon to know the shortest path between a multitude of possible paths, now ,,another sense” of photon must be invented in order to be able to appreciate an angle and to change a ,,specific amount of energy". 
Let’s leave aside these problems of actual quantum mechanics, and let’s pass to more realistic contradictions of actual explanation for Compton effect.
It is assumed that Compton scattering occurs predominantly with photons of medium energy, i.e. about 0.5 to 3.5 MeV. A 137Cs radioactive source is usually used to provide photons for Compton scattering. The radioactive source generates a beam of photons with energy 0,662 MeV this means 1,06x10exp(-13) J, the beam being mainly monoenergetic.
With this photon energy, it is not difficult to calculate the mass of such γ photons according to actual quantum theory:

By comparison with electron mass there is:


So, in case of a Compton effect with this photon energy, we are in particular case of elastic collision where both masses are equal and one object (electron) is considered at rest. If we reduce the experiment to have a two-ball setup, the swinging ball should come to rest as it bumps into the lone ball. And that lone ball will be accelerating to the velocity the other ball had when it struck. Therefore, in this ,,hypothetical” one-dimensional Compton effect, the photon remain at rest, and electron gain entire energy of incident photon.
It is very strange how is possible for a Compton effect to have a ,,elastic collision” and the incident photon remains with more then 93% from its initial energy, and the electron gain maximum 7% from photon energy.
In practice, there are few cases when the collision is one dimensional; more close to reality is a bi dimensional collision and scattering; in this case the situation is a little bit more complicated but manageable.
Let’s consider the case when the ball 1 collides elastically the ball 2. The set up of experiment is to have ball 2 of mass m2 at rest before collision and the ball 1 of mass m1 is moving with velocity v. The velocity v1 of ball 1 and velocity v2 of ball 2 after collision will depend upon the "aiming" distance δ, which is equal to the distance between the center of the ball 2 and the line of the motion of the ball 1 before collision.


The collision will happen if δ < r1 + r2.

© 2017 All Rights Reserved Coșofreț Sorin Cezar

MegaMenu RO

Warning: "continue" targeting switch is equivalent to "break". Did you mean to use "continue 2"? in /home/elkadotc/public_html/plugins/system/helix3/core/classes/Minifier.php on line 227

Please consider supporting our efforts.for establishing a new foundation for exact sciences