AUTHOR=Boswell Rod W. , Takahashi Kazunori , Charles Christine , Kaganovich Igor D. 

TITLE=Non-local electron energy probability function in a plasma expanding along a magnetic nozzle

JOURNAL=Frontiers in Physics

VOLUME=Volume 3 - 2015

YEAR=2015

URL=https://www.frontiersin.org/journals/physics/articles/10.3389/fphy.2015.00014

DOI=10.3389/fphy.2015.00014

ISSN=2296-424X

ABSTRACT=Electron energy probability functions (eepfs) have been measured along the axis of low pressure plasma expanding in a magnetic nozzle. The eepf at the maximum magnetic field of the nozzle shows a depleted tail commencing at an energy corresponding to the measured potential drop in the magnetic nozzle. The eepfs measured along the axis demonstrate that the potential and kinetic energies of the electrons are conserved and confirm the non-local collisionless kinetics of the electron dynamics.