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  1. With all control rods inserted all the way, begin inserting fuel rods.
  2. When the basic minimum operating number of fuel rods have been inserted, insert a continuous neutron source of known intensity.
  3. Measure the neutron flux in the reactor and calculate the reactor's neutron multiplication factor to determine how close you are to design predicted critical.
  4. Begin withdrawing control rods very slowly, stopping periodically and repeating step 3. Each time the neutron multiplication factor should increase.
  5. If the multiplication factor keeps increasing in step 4 while the control rods are stopped, you have reached critical. Remove the neutron source and the neutron flux in the reactor should decline slightly then become constant.
  6. You have now safely started your nuclear reactor. Congratulations!

If anything unexpected happens reinsert all control rods, remove the neutron source, find and fix the problem, and restart the procedure.

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13y ago
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6mo ago

To start a nuclear reactor, control rods are gradually removed to allow neutrons to initiate fission reactions. The heat generated from these reactions is used to produce steam, which drives turbines to generate electricity. Reactor operators monitor and adjust various parameters to ensure the reactor operates safely and efficiently.

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Q: How do they start a nuclear reactor?
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What is the purpose of the reactor vessel?

The reactor vessel is the main container that houses the nuclear fuel, control rods, and coolant in a nuclear reactor. Its purpose is to contain and shield the nuclear reactions happening inside, and to provide structural support and safety for the reactor core.


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The part of a nuclear reactor where the nuclear reaction takes place is called the reactor core. It typically contains the fuel rods, control rods, and coolant necessary for sustaining and controlling the nuclear reaction.


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The reflector in a nuclear reactor helps to reflect neutrons back into the reactor core, increasing the chances of nuclear reactions occurring. The reactor core is where the nuclear reactions take place, generating heat that is used to produce electricity.


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How many watts electricity is produced by a nuclear reactor?

The electricity produced by a nuclear reactor can vary depending on its size and design, but a typical nuclear reactor can generate anywhere from 500 megawatts to 1,500 megawatts of electricity.

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