Derivation of temperature and density from Langmuir probe observations with a small surface-to-probe area ratio

Details Derivation of temperature and density from Langmuir probe observations with a small surface-to-probe area ratio Derivation of temperature and density from Langmuir probe observations with a small surface-to-probe area ratio

Dec 2007

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007agufmsa33b1321b&link_type=abstract

American Geophysical Union, Fall Meeting 2007, abstract #SA33B-1321

Computer Science

Sound

2415 Equatorial Ionosphere, 2467 Plasma Temperature And Density, 2494 Instruments And Techniques, 7853 Spacecraft/Atmosphere Interactions, 7894 Instruments And Techniques

Scientific paper

We present the dataset from two separate payloads of the EQUIS II sounding rocket campaign. The rockets were launched into thin radar scattering layers that were observed as precursors to nighttime Equatorial Spread-F. The payloads carried an RF Plasma Impedance Probe and a fixed-bias DC Langmuir probe (DCP) on one axial boom, and an internally heated sweeping Langmuir probe (SLP) that was guarded on one side on a second axial boom. The ratio of the payload surface area to the cumulative area of the sweeping Langmuir probe instrument and its guard was only about 250. We present a charging model for the payload and instrument combination to understand the problems associated with small surface-to-probe area ratio and then correlate the instrument observations with model output. We show that on small sounding rocket payloads the DCP technique of relative electron density measurement is not accurate. The ion saturation region analysis of the SLP I-V curve produces absolute ion density that matches very well with the absolute electron density derived from the impedance probe. The derived temperatures agree reasonably well with the IRI model, but also show unusual structure at small scale. Our results suggest that even with a small surface-to-probe area ratio it is possible to derive absolute plasma density and temperature from a sweeping Langmuir probe.

Affiliated with

Also associated with

No associations

Rating

Derivation of temperature and density from Langmuir probe observations with a small surface-to-probe area ratio 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 Derivation of temperature and density from Langmuir probe observations with a small surface-to-probe area ratio, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Derivation of temperature and density from Langmuir probe observations with a small surface-to-probe area ratio will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1413577