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The best apparatus yet devised is the tokamak where a plasma, that is a stream of ionised gas, is heated in a toroidal evacuated chamber, whilst the stream of gas circulating around the toroidal chamber is heated to several hundred million degrees C. The stream of ionised gas is kept stable by magnetic fields. The difficulty is just getting the plasma hot enough and stable enough, and a lot of power is required to get a short burst of fusion to start. A much larger tokamak is to be built caled ITER and this will probably be a big advance, but it is going to be a long project and won't have much to show for probably another ten years.
You can look up ITER in Wikipedia.
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∙ 14y ago
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Is it a fission or fusion reaction?
Fission and fusion are different nuclear reactions.
What type of reactions can generate the most energy of nuclear?
Fusion and fission nuclear reactions.
Why is it more difficult to start a fusion reaction than fission?
Fission reactions start naturally if the proportion of U-235 is high enough; there is evidence this has happened in places in Africa in the distant past of Earth's history. Fusion reactions require more heat and pressure than we really know how to provide so as to keep a reaction going.
What is the principle of the hydrogen bomb?
Uncontrolled nuclear fusion reactions.
Types of nuclear reactions are?
There are four types of nuclear reactions. Fusion Fission Radioactive Decay Artificial Transmutation
Why are fusion reactions difficult to recreate in a scientific laboratory?
Because of the very very high temperature and pressure required to get them started.
What does Nuclear Fusion have to do with stars?
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'
Is it a fission or fusion reaction?
Fission and fusion are different nuclear reactions.
Where does our sun get its energy from?
Fusion reactions
What are true reactions of the Sun?
They are fusion reactions, and The force to get the reactions to occur comes from gravity.
Is solar energy is due to?
fusion reactions
Solar energy is due to?
fusion reactions
What isdifference nuclear fission and nuclear fission?
The difference between Fusion and Fission is that Fission is easier to do and produces more energy than fusion reactions. However fission can be dangerous and is used in Nuclear reactors. Fusion however is safer and produces less energy but safely. It is quite difficult to cause a Fusion reaction however.
What type of reactions can generate the most energy of nuclear?
Fusion and fission nuclear reactions.
In which phase of matter do fusion reactions occur?
Plasma.
Where in the Sun do fusion reactions happen?
core and radiation
Why is it more difficult to start a fusion reaction than fission?
Fission reactions start naturally if the proportion of U-235 is high enough; there is evidence this has happened in places in Africa in the distant past of Earth's history. Fusion reactions require more heat and pressure than we really know how to provide so as to keep a reaction going.
