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Homework Help: Quantum Mechanics Square Well Potential Problem

  1. Feb 29, 2012 #1
    1. The problem statement, all variables and given/known data
    A beam of neutrons (m=1.675x10-27kg) is incident on a nucleus. Consecutive transmission maxima are observed for beam energies of 1.15, 23.656, and 50.254 MeV. Treating the nucleus as a one-dimensional square-well potential:
    (a) What is the width of the potential? (ans. 10 fm)
    (b) What is the depth of the potential? (ans. 10 MeV)
    The observations are related to the Ramsauer-Townsend Effect

    2. Relevant equations
    E = (n2h2)/(8ma2)) -V0

    3. The attempt at a solution
    I plugged in the mass and energies into the equations, using n=1 for E = 1.15 MeV and n=2 for E = 23.656 MeV. I ended up with


    I know that I need another equation, but I don't know what to use. We also never learned the Ramsauer-Townsend Effect in class, so I'm not sure how to apply it. Any input would be appreciated!
    Last edited by a moderator: Mar 1, 2012
  2. jcsd
  3. Mar 1, 2012 #2


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    Check your algebra. The solution to those two equations is a=0, V0=0.
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