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Representation Of Diffraction By Vector Summation

  1. Dec 26, 2013 #1
    Can someone help me with these parts of this demonstration?


    0. Can you define the variables in the model (e.g. s,e, lambda, a, b, z)

    1. Where does he get the derivation for phi[i,x] ?

    2. Why is delta phi[i,x] needed?

    3. I found that zeiger is the "pointer model" in german: http://de.wikipedia.org/wiki/Zeigermodell
    but I don't know how it is derived. I don't know how to interpret it...

    4. Why is amp[_x] summed over i = 1 to n ? I can see that the diffraction pattern is given by amp[_x] but I don't understand how the length and rotation of the quantum clock is defined by "zeiger".

    Here is the source code preview:
    http://demonstrations.wolfram.com/s...esentation of Diffraction by Vector Summation

    Thank you SO much!
  2. jcsd
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