X-rays

infra-red rays

a, P, and y rays

neutrons and gamma rays

return the neutrons back into the core

shield the radioactivity completely

check polllution

conserve energy

1 MeV

2.4 MeV

4.3 MeV

7.8 MeV

U233 and Pu239

U

U238 and Pu239

U238 and Th239

the most fissionable material

the basic fuel for nuclear paints

basic raw material for nuclear plants

the material which absorbs neutrons and undergoes spontaneous changes leading to the formation of fissionable material