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Thread: Electron gun

  1. #1 Electron gun 
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    Could we create a powerful electron gun which is capable to deliver currents up to 5A/10cm2 and which is capable to work in a high-temperature chemically aggressive oxidizing environment? Could some nanocoating like silicon dioxide protect it from oxidation and destruction?


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    Quote Originally Posted by Stanley514 View Post
    Could we create a powerful electron gun which is capable to deliver currents up to 5A/10cm2 and which is capable to work in a high-temperature chemically aggressive oxidizing environment? Could some nanocoating like silicon dioxide protect it from oxidation and destruction?
    Not a clue personally ,but I wonder why you are asking . Is this for the sake of building a better research tool or would it have a use outside the laboratory?


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    Quote Originally Posted by geordief View Post
    Quote Originally Posted by Stanley514 View Post
    Could we create a powerful electron gun which is capable to deliver currents up to 5A/10cm2 and which is capable to work in a high-temperature chemically aggressive oxidizing environment? Could some nanocoating like silicon dioxide protect it from oxidation and destruction?
    Not a clue personally ,but I wonder why you are asking . Is this for the sake of building a better research tool or would it have a use outside the laboratory?
    This is a know-how. It suppose to work outside of the lab.
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    Quote Originally Posted by Stanley514 View Post
    Quote Originally Posted by geordief View Post
    Quote Originally Posted by Stanley514 View Post
    Could we create a powerful electron gun which is capable to deliver currents up to 5A/10cm2 and which is capable to work in a high-temperature chemically aggressive oxidizing environment? Could some nanocoating like silicon dioxide protect it from oxidation and destruction?
    Not a clue personally ,but I wonder why you are asking . Is this for the sake of building a better research tool or would it have a use outside the laboratory?
    This is a know-how. It suppose to work outside of the lab.
    Electron guns, or more precisely, electron beam emitter. Are nothing more than an emitter, (high voltage) and a magnet to pull electrons through a hole in the magnet, guiding them to the correct place. This process, can only occur in a vacuum of about 10^-5th of an atmosphere. Otherwise they wouldn't travel far. Also, it is terribly energy inefficient, and it is also non destructive, and incapable of generating a current, as it usually reacts as radiation, creating X-rays on impact. (and heat too). Residual charge would also be generated, but minimal, it is mostly a nuisance in measuring equipment.
    Growing up, i marveled at star-trek's science, and ignored the perfect society. Now, i try to ignore their science, and marvel at the society.

    Imagine, being able to create matter out of thin air, and not coming up with using drones for boarding hostile ships. Or using drones to defend your own ship. Heck, using drones to block energy attacks, counterattack or for surveillance. Unless, of course, they are nano-machines in your blood, which is a billion times more complex..
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    Electron guns could be used for open-air welding.
    https://www.sst-ebeam.com/en/applica...tmosphere.html
    I want to know if there could be any material for electron gun emitter which allows to work at open air for many years and deliver high currents in range of several Amperes? And be completely immune to oxidation at high temperatures? Possibly some ceramics?
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