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Making plasma in a vacuum chamber? Answered

Im having trouble generating any kind of plasma and i guess not fully understanding this.

Heres my setup:
A metal pot with a Plexiglas lid as vacuum chamber. a pressure gauge on top
A vacuum chamber
A MOT as the power supply. Dont have equipment to measure high voltage but id guess around 2KVAC as thats what i understand is standard
Two terminals about 2 inches apart inside of the chamber made from copper. one coming from the top, one from the bottom. 


I hook up the terminals , hear the nice MOT buzz, but nothing happens inside of the chamber. The mot has been tested and does work. 

Any clue or direction to point me in?

6 Replies

user
sethiaumang (author)2015-03-22

Can any one give me step by step information to create vacuum for plasma polymerization ?

thank you in advance

email id

shethiaumang@gmail.com

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user
iceng (author)2014-02-12

The vacuum pressure needs to be under the 20 micron range which is beyond the Hg instrument to measure. If Hg has a reading your vacuum is not low enough !!

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steveastrouk (author)iceng2014-02-13

He should be able to see a corona in the 1" mark, but I agree 0.001" is the sort of region I'd expect.

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user
steveastrouk (author)2014-02-12

2kV should be enough to get something, but MOTs usually output 20kV. Try making one terminal a plate, and support a wire as the other terminal above the plate.

Turn off the lights and take a look.

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user
iceng (author)2014-02-11

What is the vacuum pressure ?

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GalaxyX (author)iceng2014-02-11

-0.6 to -0.7 inches of mercury

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