Basic question on electron, ion and photon excitation

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SUMMARY

The discussion centers on methods of exciting electrons, ions, and photons, specifically querying alternatives to field emission and thermionic emission for generating electron beams. A key method mentioned is photoemission, which is historically significant as it earned Albert Einstein a Nobel Prize. The conversation highlights a lack of clarity regarding the excitation of ions and photons, indicating a need for further elaboration on these topics.

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guorenguoren
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hello,
everyone, I am not in this filed. So I get a simple question. Besides field emission and thermionic emission, is there any other means to excite the eletron and get electron beam. Could anyone tell me some basic similar ways to excite the ion and photon?
Thanks.
 
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guorenguoren said:
hello,
everyone, I am not in this filed. So I get a simple question. Besides field emission and thermionic emission, is there any other means to excite the eletron and get electron beam. Could anyone tell me some basic similar ways to excite the ion and photon?
Thanks.

Er... photoemission, as in the one that Einstein won the Nobel Prize for.

What exactly do you mean by exiting "the ion and photon"?

Zz.
 

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