Question

slow neutron are generally more effwctive than fast ones for the purposes of fission why?

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Answer 1

$\huge \mathfrak\red {✓Verified}\mathfrak\pink{Answer}$Nuclear fission can occur when a nucleus is rendered sufficiently unstable by the capture of a passing neutron. The probability for a fission reaction to take place depends much on how energetic these neutrons are. The knowledge of their energies spectrum is vital for an understanding of how nuclear reactors work. One classifies these neutrons in groups according to their energy ranges, the most important being the 'fast' and 'slow' neutrons.