The most successful attempts so far have been in magnetic torus equipments, where a hot plasma (or ionised gas) is maintained in a circular torus and the fuel is fed into it (isotopes of hydrogen). The best one so far has been the JET (Joint European Torus) but it has only produced fusion for less than 1 second, so there is a long way to go. See link below
We are constantly bombarded by cosmic radiation from space, and background radiation from the soil. However, both are background, and we have no biological processes that depend on nuclear reactions to survive.
We get most of our energy from the Sun; there, the energy is converted by nuclear fusion.On the other hand, technology is not yet ready to carry out nuclear fusion on our own, right here on Earth - except for some experiments.
Fusion reactions occur under immense pressures, such as those found in the centre of the sun. To artificially produce fusion reactions here on earth, we either use MCF (magnetic confinement fusion) or ICF (inertial confinement fusion) to create the pressure and temperature necessary for small elements to fuse together, releasing energy.
Nuclear energy as we use it now is from nuclear fission. Nuclear fusion is the joining up of nuclei rather than the splitting (fission), but it is not yet available on Earth.
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 fusion in sun. Solar Cells on Earth.
Solar power is derived from nuclear fusion in the sun. It is nothing to do with nuclear energy as produced on earth
That's because of where each of these processes occur. There is no nuclear fusion inside of Earth. There is probably a small amount of radioactive decay in the Sun, but the power produced by it is insignificant, compared to the huge amount of power produced by nuclear fusion.
The energy of the sun is produced by the process of nuclear fusion, and a portion of this energy reaches the Earth in the form of sunlight, which heats the Earth.
Life on Earth gets its energy from the Sun, which produces the energy through nuclear fusion.
All useful nuclear energy produced on Earth comes from nuclear fission of U-235 and/or Pu-239, in a variety of different reactor designs. In the stars it comes from fusion of hydrogen, not fission.
Radiation, called Solar Radiation. Radiant energy in produced in the sun by nuclear fusion.
Nuclear fusion on earth has not been achieved in any way that could produce power, but experiments continue.
We are constantly bombarded by cosmic radiation from space, and background radiation from the soil. However, both are background, and we have no biological processes that depend on nuclear reactions to survive.
Nuclear fusion in the sun
The primary source of the suns energy is nuclear fusion of hydrogen. Nuclear fusion occurs in the core of the Earth.
We get most of our energy from the Sun; there, the energy is converted by nuclear fusion.On the other hand, technology is not yet ready to carry out nuclear fusion on our own, right here on Earth - except for some experiments.