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Methods for the Numerical Calculation of the Plasma Potential from Measured Langmuir Probe Characteristics
Author(s) -
Seifert W.,
Johanning D.,
Lehmann H.R.,
Bankov N.
Publication year - 1986
Publication title -
beiträge aus der plasmaphysik
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.531
H-Index - 47
eISSN - 1521-3986
pISSN - 0005-8025
DOI - 10.1002/ctpp.19860260404
Subject(s) - langmuir probe , subroutine , fortran , plasma , satellite , computer science , key (lock) , yield (engineering) , langmuir , computational physics , algorithm , plasma diagnostics , chemistry , physics , aerospace engineering , engineering , thermodynamics , nuclear physics , programming language , computer security , aqueous solution
In a previous paper the results of the Langmuir probe experiment carried out on board of two INTERKOSMOS satellites have been described. The experiences have shown that the usage of high quality algorithms for analyzing the current‐voltage‐characteristics is necessary to yield real physical parameters. The key problem is the determination of the plasma potential. This paper reviews the different methods to determine the plasma potential especially under the circumstances of computer application. The test of the well developed methods shows, that for the evaluation of the applied methods a number of different factors, discussed in the following sections of this paper, has to be taken into account. The used test data are model values or real measurements obtained by the satellite missions IK‐10, IK‐18 and BULGARIA‐1300. The computer procedures have been realized as FORTRAN‐subroutines for the BESM 6 and ES 1040.