Can a Cavity Magnetron Be Used in Reverse to Generate Resonant Frequencies?

In summary, the conversation discusses the possibility of using a cavity magnetron in reverse to give electrons energy to jump from a cathode to an anode. It also mentions the potential for resonant frequencies to be involved and the dangers of placing metal objects in microwave ovens due to the potential for reflection and resonance. The question of why and how EM waves would interact with the magnetic field is also raised.
  • #1
lufc88
52
0
Could a cavity magnetron be done in reverse in a way so that the em waves would interact with the magnetic field and give electrons energy to jump from a cathode to an anode and would any resonant frequencies be involved?

I've read some where that this is why metal articles should not be put into microwave ovens they can reflect the radiation back into the magnetron and if the placement is right the resonance can cause the jumping electrons to fry it. Is this correct?
 
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  • #2
Why would the EM waves interact with the B field?
 
  • #3
I think they act on the electrons in the b field
 

Related to Can a Cavity Magnetron Be Used in Reverse to Generate Resonant Frequencies?

1. What is a cavity magnetron in reverse?

A cavity magnetron in reverse is a device that uses electromagnetic fields to produce microwaves instead of using them to generate electron beams like a traditional cavity magnetron.

2. How does a cavity magnetron in reverse work?

A cavity magnetron in reverse works by using a permanent magnet to create a magnetic field, which then interacts with an electron beam to produce microwaves through the use of cavity resonators.

3. What are the applications of a cavity magnetron in reverse?

Cavity magnetrons in reverse are commonly used in microwave ovens, radar systems, and particle accelerators. They can also be used in medical imaging and industrial heating processes.

4. What are the advantages of a cavity magnetron in reverse?

The main advantage of a cavity magnetron in reverse is its compact size and low cost compared to other microwave-generating devices. It also has a high efficiency and can produce a wide range of microwave frequencies.

5. Are there any limitations to using a cavity magnetron in reverse?

One limitation of a cavity magnetron in reverse is that it can only produce a fixed frequency determined by the size and shape of its cavity resonators. It also has limited power output compared to other microwave sources.

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