Mod-01 Lec-37 Nuclear Fusion

We had finished our discussion on Nuclear Fission Reactions. We had seen that this an important reaction because it produces energy and lots of our energy requirements do come from fission reactions. Next session that I am going to start is on nuclear fusion reaction. So, let us start with the new chapter, this is nuclear fusion reactions. This chapter

is also very important again from applications point of view and same applications. Nuclear fission is used for energy production electricity production nuclear fusion can also be an is used for energy production in fact everyone knows is a general knowledge, school students Knows children also knows that the energy that we get from sun comes

from nuclear fission going on inside the core of the sun, and only because of that energy all life and everything is they are on this earth. And we are also trying to produce nuclear fusion reactors were energy can be produce electricity can be produced from nuclear fission reactions. So, let’s first revise the basics of this fission reaction in fission a nucleus

splits in 2 parts, and then if the nucleus is quite heavy the Q value is positive and energy is released in fusion to light nuclei fuse or combine to form a bigger nucleus and from that also if the nuclei are small enough energy is produced Q value is positive. So, if we remember that binding energy per nucleon versus nucleon number mass number

curve if this is the mass number of a particular nucleus and then the binding energy divided by this A, binding energy per nucleon is here on the average on the average it increases in the beginning and then it goes to a maximum and then slowly decreases, this is the kind and this maximum occurs somewhere around this 56, 57 that is iron and nickel that region