Mod-01 Lec-32 Nuclear reaction Contd..

So, we talked about various kinds of nuclear reactions. We talked about compound nucleus reactions. We talked about direct nuclear reactions in which transfer reactions that is the stripping reactions or pick up reactions, capture reactions, scattering elastic scattering in elastic is scattering. All these things we discussed and little bit of mechanism and physics we discussed. These nuclear reaction had been the tools in the hands of physicists

to know about the structure of nucleus inside and many other information. So, typically if we look at what kind of informations one get from these reactions one is to get the energy levels of a nucleus within that nucleus you have nucleons going into different shell module states And then those energies of those things can be obtained from the kinetic energy

and the angular distribution of this outgoing particles in a typical nuclear reaction experiments. So, let me work out that energy relation between energy of the outgoing particle and the energy

level excited energy levels of the nucleus. So, typically the nuclear reaction would be something like this we will have a target we have discussed this geometry several times and then some projectile particle a will be bombarded here And it will interact with some nucleus X here and then it will convert this nucleus X to some nucleus Y which will recoil inside and it will generally be stopped here

itself but, another particle b can come out at certain angle and it is this b particle that we detect in the experiment. So, we put our detector here and this angle is theta so, we can vary this theta we can put the detector at any angle we wish to get the angular distribution of these particles and the detector also analyzes energies that means the particles