Could a cavity magnetron be used for infrared instead

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    Cavity Infrared
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SUMMARY

The discussion centers on the feasibility of using cavity magnetrons to generate infrared (IR) frequencies instead of microwaves. While microwave magnetrons effectively produce electromagnetic frequencies that water molecules absorb, participants suggest that alternative technologies for generating IR exist that may be more efficient. A standard electric bar fire element is cited as a potentially more effective method for producing infrared heat.

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lufc888
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of microwaves?
 
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Microwave magnetrons are useful because they produce an EM frequency which water molecules are highly effective at absorbing.
I can't think of a reason why similar technology couldn't be used to generate infra red frequencies, but there are many ways to generate IR that are probably more efficient.
A standard electric bar fire element probably is.
 

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