These are almost entirely to do with the release of radiation from the reactor. All reactors produce active fission products, and these must be kept contained in the reactor primary circuit or secondary containment, whatever the fault conditions that might occur, either from internal faults or external events like earthquakes or aircraft crashes. This is a large part of the design and operating effort that makes a reactor safe to operate.
They seem very little, compared to fission reactors, where the main risk is of having fission products released to the environment. This risk is made vanishingly small by good design and operation, but it is still there. Fusion on the other hand does not create fission products, and scientists called it clean energy years ago. The only trouble is they have not been able so far to make it work. The fusion reactions will produce neutrons which will constitute some hazard to operators and they will have to be well shielded.
Generally the reaction results in radiation. If it is ionizing radiation the result would be damage to living organisms. A runaway reaction would result in a very hot mass of radioactive material. Properly designed, the result could be a weapon.
Mostly they are the leaks of toxic nuclear chemicals.
Nuclear fusion is a nuclear reaction, but so is fission. So not all nuclear reactions are fission.
The stars produce their heat from nuclear fusion reactions. Work on earth to produce controllable nuclear fusion is concentrating on one particular reaction, between deuterium and tritium, because it is the easiest to get going (though hard enough!). Stars operate with other reactions but all of the nuclear fusion type. You can read more in Wikipedia 'Nuclear fusion'
Nuclear reactions convert very small amounts of matter into significant amounts of energy.
false
Nuclear fission involves splitting an atom and creates radioactive waste. Nuclear fusion involves bringing an atom together and creates no radiative waste
nuclear fission and nuclear fusion
Fusion and fission nuclear reactions.
Nuclear fusion
You probably mean nuclear fusion
Fission and fusion are different nuclear reactions.
Nuclear fusion is a nuclear reaction, but so is fission. So not all nuclear reactions are fission.
There are four types of nuclear reactions. Fusion Fission Radioactive Decay Artificial Transmutation
The stars produce their heat from nuclear fusion reactions. Work on earth to produce controllable nuclear fusion is concentrating on one particular reaction, between deuterium and tritium, because it is the easiest to get going (though hard enough!). Stars operate with other reactions but all of the nuclear fusion type. You can read more in Wikipedia 'Nuclear fusion'
Nuclear energy is obtained through fission and fusion reactions.
The sun's nuclear reactions are fusion reactions at extremely high temperatures and pressures, while the nuclear reactor's nuclear reactions are fission reactions at typical temperatures and pressures for earth.
Uncontrolled nuclear fusion reactions.
Nuclear reactions convert very small amounts of matter into significant amounts of energy.