We calculate Plasma parameters by different methods like optical emission spectroscopy and langmuir probe. My question what is the purpose of this?
Actually I am working on rf plasma source for optical emission spectroscopy...and calculating temperature and number density through boltzman plot and stark broadening
to calculate other plasma parameters such as Debye length, plasma frequency, plasma parameter and ......etc.
Why we use man-made low-temperature plasma? High energy while low temperature.
How to characterize the level of energy? Electron temperature and electron density.
Dear Sana,
The following article might help you with your research.
https://ieeexplore.ieee.org/abstract/document/7436207
Good luck,
Hamed
Dear Sana Sadaqat
I wish you read the answer to the following researchers. Let ask differently. What is the objective of study plasma?
We study plasma for different applications such as astrophysics and industries.
If we deal with higher excited frequency then medium of the plasma will act as a dielectric media, where the wave propagates and is often used for diagnostics. On the other hand, If we deal with lower excited frequency, then the medium of plasma will act as a conductor where most of the important applications in industry are used. In both studies, we need to know several important parameters such as the power of the plasma, the energy distribution, the ion flux, debye radius, plasma frequency, and the plasma current.
One significant path to verify this calculation is experimentally evaluating the density and the temperature of the plasma.
The last answer is very much the point: We use plasma devices for say fusion, x-ray lasers, POS, pinches etc. Device performance critically depends on these parameters. For astrophysics models and predictions also depend on these parameters
Well, it depends on the type of research you are doing.
eg,
1.
In electric propulsion, it's important to know the temperature and number density of electrons from the hollow cathode so that it properly neutralizes the ion beam ejecting from the thruster.
2.
In diagnostics like faraday cups, the electron temperature is important for deciding the suppressor voltage so as to estimate the true value of ion current.
- Badges
- Science topic
- Similar topics
- Correction