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32
THE JAINA PHILOSOPHY
vibrations. Before coming to rest, each of the fragments emits a neutron
It must be remembered that although the neutrons are much more effective nuclear projectiles than the charged particles, their effectiveness in producing the fission is, however, not cent per cent The important condition for a sustained nuclear transformation is progressive neutron production or a chain reaction for włuch it is necessary that a hundred neutrons entering the substance would release many more than a hundred ncutrons
There are two types of chain reactions Controlled and uncontrolled The controlled reaction is analogous to the burning of petrol in automobile engine. The tom splitting hullcts. The neutronindre first slowed down from specds of more than ten thousand miles per second to less than one mule per second by being made to pass through a moderator before they reach the atoms it which they are aimed Thus the liberation of nouirons is under complcic control and .icis as a slow but sicady nuclear fire
The inwntrolicd chain rcacuon is one in which there is no moderator]nd no neutron absurhers It 19 analogous to the dropping of a match in a petrol unha in the controlled chain reilun ile fasi ncutrons
7th nothing to sou them down or lo devour them, bude up to the Trilhon and quaorillion in a fraction of a millionth or a second this leads to the splinting ?Curresponding numhor of alons, resulting in the relen of unichet ble quantities of nuclear energy I freineridandi tinloteriile It er he concluded from the general theory or
ir rulur ta' the fisyon cfTcctiveness of marked94 11CT2 hent with the increasing atonit ucight mjaft citient in questinii. '1 111», the ission of
