Accession Number : AD0711095

Title :   AN EXPERIMENTAL STUDY OF THE CYLINDRICAL LANGMUIR PROBE RESPONSE IN THE TRANSITION REGIME,

Corporate Author : CALIFORNIA UNIV BERKELEY DIV OF AERONAUTICAL SCIENCES

Personal Author(s) : Kirchhoff,R. H. ; Peterson,E. W. ; Talbot,L.

Report Date : DEC 1969

Pagination or Media Count : 59

Abstract : Experiments were performed in a highly expanded low density flowing argon plasma using both single and double probes. Results are obtained in the near free-molecule regime over a wide range of ratios of Debye length to probe radius, probe length to probe radius, and probe radius to relevant mean free path. The effect of collisions on the ion-saturation current, the retarding field electron current, the floating potential and the inferred electron temperature was investigated experimentally. An existing approximate analysis describing the collisional single probe ion-saturation current and the retarding field electron current was extended to describe the collisional double probe characteristic and magnitude of the single probe floating potential. (Author)

Descriptors :   (*LANGMUIR PROBES, PERFORMANCE(ENGINEERING)), RESPONSE, CYLINDRICAL BODIES, PLASMA MEDIUM, ELECTRIC CURRENTS, ELECTRON DENSITY

Subject Categories : Plasma Physics and Magnetohydrodynamics

Distribution Statement : APPROVED FOR PUBLIC RELEASE