Nuclear physics 3 lectures
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Radioactive decay occurs when an unstable atom emits particles or radiation to become more stable. There are three types of radioactive decay: alpha particle emission, beta particle emission, and gamma ray emission. Nuclear physics lectures covered radioactive decay and neutron interactions with nuclei. Neutrons can elastically scatter off nuclei through potential scattering. Neutrons can also be absorbed by nuclei to form an excited compound nucleus that then decays, emitting an energetic particle. The concept of neutron cross section is used to quantify the likelihood of interaction between an incident neutron and a target nucleus.
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Nuclear physics 3 lectures
- 1. Nuclear Physics First three Lectures Muhammad Zeeshan Khalid
- 2. Radioactive Decay • Radioactive decay, also known as nuclear decay or radioactivity, is the process by which a nucleus of an unstable atom loses energy by emitting particles of ionizing radiation. A material that spontaneously emits this kind of radiation— which includes the emission of energetic alpha particles, beta particles, and gamma rays—is considered radioactive.
- 3. Radioactive Decay Radioactive decay results in the emission of either: • an alpha particle (a), • a beta particle (b), • or a gamma ray(g).
- 4. 1. Neutron cross section • In nuclear and particle physics, the concept of a neutron cross section is used to express the of interaction between an incident neutron and a target nucleus. • Microscopic cross scattering does provide no information about the change in neutron direction or energy that occur in such collision.
- 7. Neutron-Nuclear Interaction Potential Scattering: Neutron scatter elastically off the nucleus Compound Nucleus: Neutron absorbed by the nucleus to form compound nucleus and then decay an energetic particle.