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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.
What else can I help you with?
Why is nuclear fusion so difficult to achieve?
Nuclear fusion is difficult to achieve because it requires extreme conditions of temperature and pressure to overcome the repulsive forces between atomic nuclei. Additionally, containing and controlling the high-energy reactions involved in fusion is a major technical challenge.
Why it is more difficult to start a fusion reaction than that of fission reaction?
Fusion reactions require much higher temperatures and pressures to overcome the Coulomb barrier between atomic nuclei and achieve fusion. Additionally, controlling and sustaining the high temperature plasma for fusion is technically challenging and expensive compared to the relatively simpler process of inducing fission reactions with neutron bombardment.
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 key difference between fission and fusion reactions in terms of energy release?
The key difference between fission and fusion reactions in terms of energy release is that fission reactions involve the splitting of heavy atomic nuclei, releasing energy, while fusion reactions involve the combining of light atomic nuclei, also releasing energy.
Why have fusion reactions not been used in nuclear reactors?
Well, scientists have been researching fusion reactors for over 50 years, but nuclear fusion is much more difficult to achieve than nuclear fission, which is what current nuclear power technology is based on. There are many reasons for this, but while there have been tests and advancements in the field, scientists have yet to a) create a sustainable and stable nuclear fusion reaction and b) create a reaction that has a greater output than input. If we were to perfect the technology and use it commercially, it would probably give the earth unlimited technology as it would have an energy output similar to that of a star.
Why is nuclear fusion so difficult to achieve?
Nuclear fusion is difficult to achieve because it requires extreme conditions of temperature and pressure to overcome the repulsive forces between atomic nuclei. Additionally, containing and controlling the high-energy reactions involved in fusion is a major technical challenge.
Why are fusion reactions difficult to recreate in a scientific laboratory?
Fusion reactions require extremely high temperatures and pressures to overcome the electrostatic repulsion between positively charged nuclei and achieve fusion. Controlling and sustaining these extreme conditions in a laboratory setting is a significant technical challenge. Additionally, the high-energy neutrons produced by fusion reactions can damage the materials used in the fusion reactor, posing another obstacle to recreating fusion in a controlled manner.
Why it is more difficult to start a fusion reaction than that of fission reaction?
Fusion reactions require much higher temperatures and pressures to overcome the Coulomb barrier between atomic nuclei and achieve fusion. Additionally, controlling and sustaining the high temperature plasma for fusion is technically challenging and expensive compared to the relatively simpler process of inducing fission reactions with neutron bombardment.
Where does our sun get its energy from?
Fusion reactions
Where does Fusion reactions occur in what?
A, the Sun; B, the hydrogen bomb; C, Fusion [tokamak] reactors - not to be "functional" until 2040. _________________________________________________________________
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 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
Where in the Sun do fusion reactions happen?
core and radiation
What is the key difference between fission and fusion reactions in terms of energy release?
The key difference between fission and fusion reactions in terms of energy release is that fission reactions involve the splitting of heavy atomic nuclei, releasing energy, while fusion reactions involve the combining of light atomic nuclei, also releasing energy.
Fusion reactions on the sun?
yes nuclear fusion does occur on the sun, creating intense heat and light
Why have fusion reactions not been used in nuclear reactors?
Well, scientists have been researching fusion reactors for over 50 years, but nuclear fusion is much more difficult to achieve than nuclear fission, which is what current nuclear power technology is based on. There are many reasons for this, but while there have been tests and advancements in the field, scientists have yet to a) create a sustainable and stable nuclear fusion reaction and b) create a reaction that has a greater output than input. If we were to perfect the technology and use it commercially, it would probably give the earth unlimited technology as it would have an energy output similar to that of a star.
