How to calculate the plasma volume in a Microwave Plasma Reactor and hence Microwave Plasma Power Density (MWPD)?
difficult task.. estimate the dimension of your plasma volume you can see..
or measure by probes..
calculating.. which pressure range?
atmospheric? papers from Y.Kabouzi in Montreal ? the plasma takes every watt it can get.
low pressure? here the plasma limits himself its volume since the em wave will be reflected above cut-off density.. you may have cutoff-densityXmw-emitter-areaXpenetration depth(lambda/4?)/input-power ??
if the pressure is too low to reach cut-off then the e-field configuration will decide where your plasma is and how big.
hope I could help.
If you have a magnetic field confined plasma you must have the magnetic field inside the Plasma Reactor, than plasma pressure at any part of the plasma can be calculated from this formula: P=0.5*B^2/mu (mu=pi*4e-7)
In order to know plasma B field you should use a simulator like COMSOL or other
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