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Measuring and Detecting Radioactivity

Question

Why are fusion reactors very hard and expensive to build?

3 years ago

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ยท

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Lelia Jenkins


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2 Answers

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Fusion requires enormous (10 million Kelvin) temperatures to get it going so there is the difficulty of heating the hydrogen fuel to this temperature and then containing it.

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Sinan Eksi

Hi Leila,

Nuclear fusion requires a very high temperature (100 million kelvin) and very high pressure, which we can't currently achieve on Earth.

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