Check out
http://en.wikipedia.org/wiki/Langmuir_probe
Langmuir probe
A *Langmuir probe* is a device named after Nobel
Prizehttp://en.wikipedia.org/wiki/Nobel_Prizewinning physicist
Irving
Langmuir http://en.wikipedia.org/wiki/Irving_Langmuir, used to determine
the electron temperature, electron density, and electric potential of a
plasma http://en.wikipedia.org/wiki/Plasma_(physics). It works by
inserting one or more electrodes into a plasma, with a constant or
time-varying electric potential between the various electrodes or between
them and the surrounding vessel. The measured currents and potentials in
this system allow the determination of the physical properties of the
plasma.
Then see
http://www.physics.uiowa.edu/~rmerlino/APS_05_dust_MS.pdf
*CHARGING OF DUST IN A NEGATIVE ION PLASMA*
**
*For a general overview of dusty plasma look at*
**
http://wsx.lanl.gov/RSX/PPSS_2006/lectures/Goree_LANL_PPSS07.pdf
**
*Fundamentals of Dusty Plasmas*
* *
If you need more
Google the key words:
* *
langmuir probe carbon nanotube density
Cheers: Axil
On Sun, Jun 17, 2012 at 3:52 PM, Jojo Jaro jth...@hotmail.com wrote:
**
Hey Gang, Is anyone here aware of an easy test for the presence of Carbon
Nanotubes? Easy being simple and inexpensive and accessible to ordinary
folks without expensive equipment. A Test that would quantify the amount
of carbon nanotubes would be better than simply telling me that they are
present.
I am testing my nanotube reactor but I am unsure how much nanotubes I am
creating if any.
Is there a chemical out there that would react exclusively with nanotubes
only. Alternatively, a chemical that would strip away the carbon soot and
ordinary carbon particles and leave behind only carbon nanotubes would work
also. I am aware that there is a CNT purification process, but a google
search reveal nothing within my reach or capability.
Jojo
