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The fixed-bias Langmuir probe on the Communication/Navigation Outage Forecast System satellite: Calibration and validation
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10.1063/1.4766333
/content/aip/journal/rsi/83/11/10.1063/1.4766333
http://aip.metastore.ingenta.com/content/aip/journal/rsi/83/11/10.1063/1.4766333

Figures

Image of FIG. 1.
FIG. 1.

The trigger probe (TP) for the VEFI suite on the C/NOFS satellite. The collector and guard form a spherical probe, with the guard removing the non-uniformities introduced by the boom.

Image of FIG. 2.
FIG. 2.

The variation of expected current collected per unit density as a function of (a) ion temperature, (b) reference potential, and (c) ion composition.

Image of FIG. 3.
FIG. 3.

The ratio of PLP density (N i ) to trigger probe current (I TP) as a function of the fraction of O+ as measured by IVM for the four bias settings. The cyan lines represent the mean and standard deviation of the data; the red lines are the fit to the data.

Image of FIG. 4.
FIG. 4.

The ratio of PLP density (N i ) to trigger probe current (I TP) as a function of the fraction of applied potential for four different levels of O+ composition.

Image of FIG. 5.
FIG. 5.

Performance of the calibration method for total density for all days in 2011. The vertical dashed lines represent discrepancies of 30% versus the PLP density.

Image of FIG. 6.
FIG. 6.

An example of plasma density structures where a changing composition results in a suppression of the features if the probe is uncalibrated.

Tables

Generic image for table
Table I.

Data used for each fit.

Generic image for table
Table II.

Fitted parameters.

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/content/aip/journal/rsi/83/11/10.1063/1.4766333
2012-11-12
2014-04-19
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: The fixed-bias Langmuir probe on the Communication/Navigation Outage Forecast System satellite: Calibration and validation
http://aip.metastore.ingenta.com/content/aip/journal/rsi/83/11/10.1063/1.4766333
10.1063/1.4766333
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