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level: Induced fusion

Questions and Answers List

Question	Answer
In a thermal reactor whats the function of the moderator	Slow down neutrons
What properties does a modertor material need to have And why	Light nuclie Becasue the role of the moderetor is to take momentum from the neutrons
Explain how the moderator slows down the neutrons	Neutron collides with the molecules of the moderator causing them to loose momentum
In a thermal reactor whats the function of the control rods	Absorb neutrons
What is done to the control rods to dictate how many neutrons they absorb	Varying depth
What properties must control rods have and why	Non-fissionable So that they can absorb excess neutrons without decaying themselves
Give some examples of common substances used for control rods	Boron and cadmium
In a thermal reactor whats the function of the coolent	To remove the heat released by the fission reactions
Give some examples of common substances used for coolent	Water Helium
What makes a substance good for a coolent	High specific heat capacity
Give some examples of common substances used for a moderator	Water Graphite