Question

Explain the mechanism of a) heat generation in nuclear power plant, and fate of generated neutrons, b) describe the nature of a, b, and y decays of unstable radioisotopes.

Answer 1

Ans a when a large fissile atomic nucleus bombarded with a neutron, it becomes unstable and split into two moderate nucleus and this releasing kinetic energys gamma radiation and foree neutrons. This free nettrons again hit to the fissile nucleas and this it is a chain reaction happening in the miclear power plant which generates heat gam e to anno | Casa : --- C . . . . . . . 235.0+ in staat ] --> 93 km Beat t Alhead - The generated neutrons again that hit a fissile nucleus which i s form again (3x3) = q necitrons... like this number of noutrons increases and reaction is happening until there are fissile midees present. To a particles x-decay involves the emission of a helium nucleus, consisting of two protons . and two neutrons

- The mielides with 128 neutrons . would be in parowred position in regard to a- decay, as the resulting daughter would be left with magic number (126) of neutrons, such as 212 Po 218 At such nuclides are rery short lived 8 und einit high energya- Particles . Again which haring already 126 neutron, emits a particles of low energy.

B-decay coe) ... The energy of the fo would be a pecially high and the half-life non relatively short to produce doughter nuclie which has zoos n (neutrons equal to magic number . Like thike ni Lait Bit 7 (gamma redictions 32p - 325+ B - 151,776 . 7-decay It is isomeric transition. After a pr decay the nucleas formed in in metastable excited state prior to its deady to ground - state. This metais stible state to ground storite transition occur by f-decay.. Lille! Am x:AX + Yeni ecome 27 0Co te