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CH3041
chain reaction
ON-LINE LECTURE 24
RADIOACTIVITY
• Fission is the process where a heavy
radioactive nuclide is hit by a neutron and
as a result cleaves into 2 daughter nuclides.
• 10n + 23592U ® 14156Ba + 9236Kr +  310n + heat
 Heat 1kg 235U (nuclear) = 2500t coal (chemical)
• This is the reaction that occurs in nuclear
power plants.
• They use 235U &
this must
be enriched from
the yellow cake U3O8
produced at Ranger.