Plasma density in magnetic bottle

[Abstractness]

Simple question: what's the density distribution of a plasma cloud confined in a magnetic bottle?
On the plane perpendicular to the central axis, Is it normally distributed or is it uniformly distributed inside a circle or is it something more complicated?

 

[Astronuc]

Simple question: what's the density distribution of a plasma cloud confined in a magnetic bottle?
On the plane perpendicular to the central axis, Is it normally distributed or is it uniformly distributed inside a circle or is it something more complicated?

Under steady-state conditions, the pressure is relatively uniform, and therefore the plasma density is proportional to pressure (nkT), where n is the ion and electron densities, k is Boltzmann's constant and T is temperature in K.

Some basics of plasmas are found here -

http://descanso.jpl.nasa.gov/SciTechBook/series1/Goebel_03_Chap3_plasphys.pdf
http://descanso.jpl.nasa.gov/SciTechBook/st_series1_chapter.cfm?force_external=0

http://hyperphysics.phy-astr.gsu.edu/hbase/kinetic/kinthe.html
http://hyperphysics.phy-astr.gsu.edu/hbase/nucene/fusmag.html

http://silas.psfc.mit.edu/introplasma/chap1.html