NDLI: Orbital Motion Theory of the Shielding Potential Around an Electron Emitting Body

Content Provider	IEEE Xplore Digital Library
Author	Bruno, A. Delzanno, G.L. Lapenta, G. Sorasio, G.
Copyright Year	2005
Description	Author affiliation: Burning Plasma Res. Group, Politecnico di Torino, Turin (Bruno, A.)
Abstract	Summary form only given. The problem of the shielding potential around a body immersed in a collisionless plasma is investigated for the case of a body emitting electrons due to thermionic emission, photoemission and secondary emission. The system is investigated by means of an analytic, kinetic theory as well as particle-in-cell (PIC) simulations. The kinetic theory takes into account self-consistently plasma particles collection by the body as well as electron emission. The theory is derived under the assumption of spherical symmetry so that conservation of energy and angular momentum can be used to calculate the plasma distribution functions at any given point in phase space. Far away from the body, the plasma is assumed unperturbed and described by a Maxwellian distribution function at rest. Thus, the unperturbed plasma acts as a source of particles balancing the absorptions from the body and a steady state is eventually reached. Furthermore, the theory is formulated for positively charged bodies and for radial profiles of the shielding potential presenting an attractive well, as found with PIC simulations by Delzanno et al. for the case of thermionic emission. This assumption is needed in order to be able to describe correctly potential barriers to the particle motion. The theory is shown to be in good agreement with PIC simulations. Furthermore, several cases (focusing on parameters typical of laboratory experiments) are presented for the three different emission mechanisms, showing that shielding potentials having an attractive well are possible for all emission mechanisms. The influence of physical parameters such as ion to electron mass ratio, temperature of the emitted electrons, work function of the body, etc is also shown
Sponsorship	Plasma Sci. Appl. Comm. IEEE Nucl. Plasma Sci. Soc.
Starting Page	286
Ending Page	286
File Size	999581
Page Count	1
File Format	PDF
ISBN	0780393007
ISSN	07309244
DOI	10.1109/PLASMA.2005.359388
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2005-06-20
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Electron emission Plasma simulation Plasma sources Thermionic emission Kinetic theory Distribution functions Photoelectricity Analytical models Absorption Steady-state
Content Type	Text
Resource Type	Article
Subject	Atomic and Molecular Physics, and Optics Condensed Matter Physics Electrical and Electronic Engineering

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

Modified Jeans Instability for Dusty Plasmas: Linear Theory

Modified Jeans Instability for Dusty Plasmas: 3D Nonlinear Simulations

Kinetic simulations of an electron beam penetrating a density gradient

A kinetic theory of planar plasma sheaths surrounding electron emitting surfaces

Nonlinear trapping simulations for helicon plasma sources

On beam-plasma interaction in a dust-electron plasma

Time resolution of laser induced electron emission from cesium at high laser power

Transport of hot photocarriers in heterojunction

Kinetic simulation of magnetized plasma based on phase point trajectories

Orbital Motion Theory of the Shielding Potential Around an Electron Emitting Body

Similar Documents

Modified Jeans Instability for Dusty Plasmas: Linear Theory

Modified Jeans Instability for Dusty Plasmas: 3D Nonlinear Simulations

Kinetic simulations of an electron beam penetrating a density gradient

A kinetic theory of planar plasma sheaths surrounding electron emitting surfaces

Nonlinear trapping simulations for helicon plasma sources

On beam-plasma interaction in a dust-electron plasma

Time resolution of laser induced electron emission from cesium at high laser power

Transport of hot photocarriers in heterojunction

Kinetic simulation of magnetized plasma based on phase point trajectories

Orbital Motion Theory of the Shielding Potential Around an Electron Emitting Body