In the last post on nuclear physics, we derived the expression for the form factor and found that the scattering cross-section of an extended nucleus can be obtained by using the expression; Where is the Form factor and it is given by; Here the right side of this equation is the Fourier transforms of . […]
Nuclear Shape And Size: Fermi Model Read More »
In the last post, we discussed a technique by which we can have an estimate of the size of the nucleus. We saw a graph between the differential cross-section per unit solid angle and the scattering angle obtained from an electron scattering experiment with the Carbon nucleus. We compared that graph with the single slit
Nuclear Shape And Size: Born Approximation And Form Factor Read More »
Till now we have discussed the discovery of the nucleus and the different hypotheses of the constituents of the nucleus. We saw that the nucleus is made of Protons and Neutrons. But we didn’t talk much about the size of the nucleus. So, in this post on nuclear physics, we are going to discuss the size
Nuclear Shape And Size: Electron Scattering Experiment Read More »
Introduction From the discovery of the nucleus until now, it has been passed almost a century of the journey of nuclear physics. But in this long duration, most of us have been exploring the ways to use it rather than exploring the world of nuclei. That’s why only a few nuclei have been discovered to
The Nuclear Landscape Read More »
Introduction The discovery of the neutron is an extraordinary development in atomic physics in the first half of the 20th century. Before that protons and electrons had already been discovered. In 1911, Ernest Rutherford developed an excellent model of the atom based on the gold foil experiment of Geiger and Marsden, called the Rutherford model
Discovery Of The Neutron, And Proton-Neutron Hypothesis Of The Nuclear Composition Read More »
Introduction At the time when the nucleus was discovered by Rutherford, only two atomic particles, proton, and electron were known. If only photons are inside the nucleus then the charge of the nucleus would be units, where is the mass number of the atom. But, it was already observed that except for hydrogen, the nuclear charge
Proton-Electron Hypothesis Of Nuclear Composition Read More »
Geiger and Marsden performed an experiment in which they have bombarded -particles on a very thin foil of gold and collected data from the experiment which was later on analysed by Rutherford. Rutherford explained the data of Geiger and Marsden by making some assumptions. It was assumed that The atom contains a nucleus of charge
Relation Between Scattering Angle And Impact Parameter Read More »
When a particle is thrown towards the nucleus, its kinetic energy decreases, and potential energy increases as approaches the nucleus and comes to momentary rest at a particular distance to the nucleus. This distance is called the distance of the nearest approach. After that, it retraces its path, and its kinetic energy increases and potential
Distance Of The Nearest Approach Read More »
Introduction Atom has a complex structure and hence many scientists tried to give a successful model of the atom and that’s why there has been a variety of atomic models throughout the history of atomic physics that refers mainly to a period from the beginning of the 19th century to the first half of 20th
Rutherford’s Scattering Experiment Read More »
In our last post, we discussed the unit of energy, mass, cross-section, radioactivity, spin, and electric quadrupole moment. We discussed why is the preferred unit of energy by nuclear physicists? We calculated the mass of the electron, proton, and neutron in . We calculated the value of the Planck constant in and the value of in
Natural Units used in Nuclear and Particle Physics Read More »
