Let's talk about Dose of plasma!
How can we measurment it(in J.cm^-2)?
The energy that we talk about is plasma energy & it related to power of generator?
or we can use the light fiber or ICCD to take spectrum and then compute the energy of the gas(for example argon)?
Is the energy same as radiant exposure?
Dear Ghazaleh,
You refer to the power of the gas. This is not the same as the power of the generator because, as you can understand, you have losses and more important a lot of different discharges in a reactor (the power of the plasma jet is just one of them). So, the resulting power of your gas (of your plasma) will be proportion to the input power (power of the generator) but not the same.
As for your second question you can use a spectrum of your plasma to find electron densities and subsequently from an equation you can find J.
But energy is not the same as radiant exposure. Just you can find energy from a spectrum.
Dear Ghazaleh
Using spectrum line is applied to evaluated the electron temperature of the plasma ( The energy of electron), but the plasma detected is the Local Thermal Equilibrium plasma.
So deduction:
For calculate W/cm2 we can measure cross section of the plasma bullet, then you measured output power of power supply
For J/ cm^2 the question is :"What's the energy?" Is it plasma's energy that we can calculate with the energy distribution function equation? So it's hard!!
I think another way is this: " We can assume that plasma is capacitor! So we can calculate the energy that stored by capacitor! We should have, output voltage and electrical charge of the electron!! So we should calculate the number of particles with velocity of Vx, Vy & Vz(we can find it with spectroscopy) & measure plasma temperature too(we should accuracy that we have cold plasma and temperature of ions can determinative the plasma temperature) ! Then we should find the product of two parameter(The number of particles and electron charge)
Am I right at all?
If I'm wrong, please let me know!
I think that i need discussion to understand the theory & experimental of this subject!!
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