Fission
- Created by: Katy **
- Created on: 14-01-14 16:44
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- Fission
- When
- massive nucleus splits
- smaller nuclei
- release of nuclear radiation
- massive nucleus splits
- Products
- radioisotopes
- unstable
- extra neutons
- more fission reactions
- radioisotopes
- How
- neutrons captured
- fuel rods
- neutrons
- heat exchanger
- gas/water
- control rods
- absorbs neurtons
- reduce reactions
- absorbs neurtons
- Initiating
- neutrons
- as background radiation
- random capture
- controlled capture
- neutrons
- Moderators
- slow down speed
- graphite
- heavy water
- cannot catch high speed neutrons
- Chain reactions
- initial fission
- releases neutrons
- more fission
- releases neutrons
- self-sustaining
- initial fission
- Critical mass
- smaller sample
- neutrons escape into air
- neutron reflectors reflect neutrons back
- increase mass
- higher % retained
- more fission
- higher % retained
- big mass
- start chain reactions
- smaller sample
- When
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