E.4 Fission
In this simulation the small green particles are neutrons and the red waves are high energy photons
1. Click "Run". What do you notice?
2. Increase the concentration of U-235 and click "Run". What do you notice?
[Loading the simulation may take a few minutes]
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Part 1 Use the "chain reaction" simulation. 1. Add U-238 nuclei and shoot the neutron. What happens? 2. Add U-235 nuclei and shoot the neutron. What happens? Why is it necessary to "enrich" the Uranium ( = increasing the concentration of U-235)? |
Part 2 Use the "nuclear reactor" simulation. 1. Fire a neutron. What happens? 2. Drag the control rods slightly down. Fire a neutron again. What happens? What is the function of the control rods?
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