Abstract
The purpose of the present investigation is to study diffusion across a magnetic field in a configuration which is free from short-circuiting effects such as those described by Simon. It provides the possibility of deciding whether collision or 'drain' diffusion is operative. For the purpose a long cylindrical plasma column with a homogeneous magnetic field along the axis has been chosen. The theoretical treatment is given. On the basis of the collision diffusion theory Tonks, Rokhlin, Cummings and Tonks and Fataliev have pointed out that a longitudinal magnetic field will reduce the losses of particles to the walls. Consequently, when the magnetic field is present, a lower electron temperature and a smaller potential drop along the plasma column should be required to sustain a certain ion density. The present experiment forms an extension of that of Bickerton and von Engel into a range where the Schottky theory is applicable in the absence of a magnetic field and where the applied magnetic field is still made strong enough to influence the electron temperature.
Lehnert, B
[1]
- Royal Institute of Technology, Stockholm (Sweden)
Citation Formats
Lehnert, B.
Diffusion Processes in the Positive Column in a longitudinal magnetic field.
UN: N. p.,
1958.
Web.
Lehnert, B.
Diffusion Processes in the Positive Column in a longitudinal magnetic field.
UN.
Lehnert, B.
1958.
"Diffusion Processes in the Positive Column in a longitudinal magnetic field."
UN.
@misc{etde_21070284,
title = {Diffusion Processes in the Positive Column in a longitudinal magnetic field}
author = {Lehnert, B}
abstractNote = {The purpose of the present investigation is to study diffusion across a magnetic field in a configuration which is free from short-circuiting effects such as those described by Simon. It provides the possibility of deciding whether collision or 'drain' diffusion is operative. For the purpose a long cylindrical plasma column with a homogeneous magnetic field along the axis has been chosen. The theoretical treatment is given. On the basis of the collision diffusion theory Tonks, Rokhlin, Cummings and Tonks and Fataliev have pointed out that a longitudinal magnetic field will reduce the losses of particles to the walls. Consequently, when the magnetic field is present, a lower electron temperature and a smaller potential drop along the plasma column should be required to sustain a certain ion density. The present experiment forms an extension of that of Bickerton and von Engel into a range where the Schottky theory is applicable in the absence of a magnetic field and where the applied magnetic field is still made strong enough to influence the electron temperature.}
place = {UN}
year = {1958}
month = {Jul}
}
title = {Diffusion Processes in the Positive Column in a longitudinal magnetic field}
author = {Lehnert, B}
abstractNote = {The purpose of the present investigation is to study diffusion across a magnetic field in a configuration which is free from short-circuiting effects such as those described by Simon. It provides the possibility of deciding whether collision or 'drain' diffusion is operative. For the purpose a long cylindrical plasma column with a homogeneous magnetic field along the axis has been chosen. The theoretical treatment is given. On the basis of the collision diffusion theory Tonks, Rokhlin, Cummings and Tonks and Fataliev have pointed out that a longitudinal magnetic field will reduce the losses of particles to the walls. Consequently, when the magnetic field is present, a lower electron temperature and a smaller potential drop along the plasma column should be required to sustain a certain ion density. The present experiment forms an extension of that of Bickerton and von Engel into a range where the Schottky theory is applicable in the absence of a magnetic field and where the applied magnetic field is still made strong enough to influence the electron temperature.}
place = {UN}
year = {1958}
month = {Jul}
}