Ben-Gurion University of the NegevAstrophysics and Cosmology GroupAstrophysics, Relativity, Cosmology, and Space Physics |
|
|
Speaker: Nathaniel Fisch (Princeton University) April 10, 2013 Some Examples of Rotating Magnetized Plasma Abstract:
Rotating
magnetized plasmas often feature unusual and unexpected phenomena.
Contemporary plasma devices often exploit (or avoid) these interesting
effects, but in any case serve as a testing ground for naturally
occurring rotating plasma such as of astrophysical origin. In the case
of the cylindrical Hall thruster, a rotating plasma can self-organize
beneficially to direct the thrust axially. In the case of
centrifugal fusion devices, there is an added axial confinement. Since
the added axial confinement is mass sensitive, it can serve also as a
mass separation device. Sometimes the rotation energy is unwanted, if
it detracts from other forms of energy, such as in compression devices
for nuclear fusion. Recently, we showed that even a rotating neutral
gas exhibits a negative compressibility effect, since energy can be
stored in the rotational degree of freedom.
|
Suggested reading: |
|
|
Back to Astronomy and Cosmology group Back to Physics Department Back to BGU |
|
Last updated
by Uri Keshet,
2013 |