Thursday, January 28, 2016

CHEM 418 Nuclear Chemistry, Winter 2016: Lecture 8 Nuclear force and nuclear models

This lecture provides information on nuclear force and nuclear models. The strong force is introduced through isospin. A comparison of exchange particles is provided. The use of mirror nuclei to examine the strong force is presented. An overview of nuclear potentials is provided and used to discuss the shell model. States of the shell model and their relationship to magic numbers are discussed. Use of the shell model is determine nuclide spin and parity is presented. The relationship between spin and parity with nuclear deformation is introduced with Nilsson diagrams. Additional information on Nilsson diagrams can be found in the Table of the Isotopes. An introduction of the Fermi model for energetic nuclei is given.
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13 comments:

  1. AnonymousJanuary 31, 2016 at 12:06 AM

    Lecture watched. quiz submitted through email. thanks!

    ReplyDelete
  2. UnknownFebruary 1, 2016 at 5:05 PM

    I sent the lecture 8 pdf quiz as an attachment through email.
    It is really nice to have a lot of examples to explain the shell model.

    ReplyDelete
    Replies
    1. Ken CzerwinskiFebruary 2, 2016 at 5:11 PM

      thanks for the comments. I am happy the examples proved useful.

      Delete
  3. UnknownFebruary 3, 2016 at 3:35 PM

    Quiz 8 sent through email, but I was not sure about the parity and spin for 94zr since spin=( 7÷2 - 1÷2)=3 (7÷2 =neutron j value and 1÷2 is proton j value.

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  4. UnknownFebruary 3, 2016 at 4:03 PM

    This comment has been removed by the author.

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  5. Isaac Shiva MillerFebruary 3, 2016 at 7:07 PM

    I have emailed you my PDF quiz 8

    ReplyDelete
  6. UnknownFebruary 3, 2016 at 10:07 PM

    PDF Quiz 8 sent through the Canvas email. The examples were really helpful!

    ReplyDelete
  7. AnonymousFebruary 3, 2016 at 11:06 PM

    Quiz 8 submitted through Canvas.

    ReplyDelete
  8. AnonymousFebruary 3, 2016 at 11:08 PM

    Lecture 8 watched and PDF Quiz 8 submitted by email!

    ReplyDelete
  9. AnonymousFebruary 3, 2016 at 11:57 PM

    Quiz submitted!

    ReplyDelete
  10. AnonymousFebruary 4, 2016 at 12:18 AM

    Quiz submitted via email.
    I noticed that the spins and parities predicted by the shell model in question three didn't match up with some of the reported spins and parities in the chart of the nuclides. Sr 89, for example, is 5/2+, but I found that it was 7/2+. Is this supposed to be the case, or am I filling orbitals incorrectly?

    -Taylor

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    Replies
    1. UnknownFebruary 4, 2016 at 7:42 AM

      I agree with this, sometimes the Shell Model doesn't always work. Thats my theory.

      Delete
  11. UnknownFebruary 4, 2016 at 7:42 AM

    Quiz submitted via email...sorry I'm late


    -Faruq

    ReplyDelete

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