Current collection to long, thin probes in a dense high-speed flowing plasma

Details Current collection to long, thin probes in a dense high-speed flowing plasma Current collection to long, thin probes in a dense high-speed flowing plasma

Feb 2001

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2001aipc..552..494g&link_type=abstract

Space Technology and Applications International Forum - 2001. AIP Conference Proceedings, Volume 552, pp. 494-501 (2001).

Statistics

Applications

International Organizations, National And International Programs, Spaceborne And Space Research Instruments, Apparatus, And Components, Electric Fields, Current System, Artificial Earth Satellites

Scientific paper

We describe chamber tests of simulated electrodynamic tethers (EDTs) of different geometries operating in a dense, high-speed plasma. The geometries tested were cylindrical, flat-ribbon, and sparse-ribbon or mesh. Several important conclusions that can be drawn from the tests are as follows: the currents collected by cylinder are close to what would be predicted via orbital-motion-limited (OML) current collection theory. The tape tether had comparable current levels to a theoretical equal area OML cylinder collector. However, I-V behavior clearly is different at nearest distances (~15λD tape width) as compared to furthest test distances (~6λD tape width). The tape tether did better than a theoretical equal mass solid cylinder. A ``knee'' in the I-V curves can be seen in the tape/mesh data at a potential that is just above the estimated energy of the incoming beam of ions, at least for the closest distances where Debye length is smallest. Below this knee the current increases rapidly as voltage is increased. Above the knee the current increases at a rate one might expect from OML current-collection models depending on the relative width. This likely is an example of high-speed plasma flow effect. Perpendicular tape orientation performed slightly better than parallel. .

Affiliated with

Also associated with

No associations

Rating

Current collection to long, thin probes in a dense high-speed flowing plasma does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Current collection to long, thin probes in a dense high-speed flowing plasma, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Current collection to long, thin probes in a dense high-speed flowing plasma will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1712018