Nuclear Physics

This introductory course appraises the present understanding of the basic structure and dynamics of the atomic nucleus. The current scientific studies of the nucleus face formidable challenges both experimentally and theoretically, because of the size, energies and forces involved. As yet there is no fundamental understanding of the nature and the complex properties of the very strong forces that hold the nucleus together in the sub-microscopic domain.

Some of the remarkable experimental findings of the properties and dynamics of the nucleus find wide application in science, medicine and engineering. Topics covered include the mechanism of and applications of radioactivity of unstable nuclei, nuclear magnetic resonance, nuclear fission and fusion.

Course Outline

13 lectures in total commencing Wednesday the 30^th April. Lectures Wednesday 9 am, Wednesday 12 pm in room 2-15.

1. Nuclear structure and properties (3 lectures)

Characteristic energy, mass and length scales. Mass and charge distributions. Nuclear forces. Magnetic dipole moments and spin. Electric quadruple moments and shape. Binding energy, stability and mass deficiency.

2. Nuclear models (3 lectures)

Independent particle and collective models. The liquid drop model. Magic numbers. The Fermi gas and shell models.

3. Radioactivity and nuclear decay (3 lectures)

Exponential decay laws. Nuclear instability and decay modes. Excited states. Decay schemes. Mšssbauer spectroscopy.

4. Nuclear reactions (2 lectures)

Conservation laws. Spontaneous and induced fission. Astrophysical nucleogenesis.

5. Practical applications of nuclear physics (2 lectures)

Fission reactors. Controlled fusion. Radioisotope dating. Applications in medicine and industry. Applications in geophysical exploration. Basic principles of radiation safety.

Assessment

Examination 80%, assignment 20%.

Recommended Reading

R Eisberg and R Resnick, Quantum Physics of Atoms, Molecules, Solids, Nuclei and Particles, 2nd Edition, Wiley (1985), Chapters 15 and 16. Other references will be advised.

Lecturer