Could a cavity magnetron be used for infrared instead

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Cavity magnetrons are effective in producing microwave frequencies that water molecules absorb well. There is speculation about the potential for similar technology to generate infrared frequencies. However, there are more efficient methods available for generating infrared, such as electric bar fire elements. The discussion suggests that while the concept is theoretically possible, practical alternatives may be superior. Overall, the focus remains on the efficiency of existing infrared generation methods compared to magnetron technology.
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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.
 
Thread 'Motional EMF in Faraday disc, co-rotating magnet axial mean flux'

Thread 'Motional EMF in Faraday disc, co-rotating magnet axial mean flux'

So here is the motional EMF formula. Now I understand the standard Faraday paradox that an axis symmetric field source (like a speaker motor ring magnet) has a magnetic field that is frame invariant under rotation around axis of symmetry. The field is static whether you rotate the magnet or not. So far so good. What puzzles me is this , there is a term average magnetic flux or "azimuthal mean" , this term describes the average magnetic field through the area swept by the rotating Faraday...
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