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Related Concept Videos

Assessing Body Temperature - Tympanic membrane01:14

Assessing Body Temperature - Tympanic membrane

Assessing tympanic membrane temperature involves using a tympanic membrane thermometer (TMT). Here is a step-by-step guide:
Step 1: Begin by practicing good hand hygiene to prevent the transmission of microorganisms.
Step 2: Turn on the thermometer and wait until the ready sign appears on the screen to ensure accurate measurement.
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Transport Number01:31

Transport Number

The transport number is the fraction of the total current carried by an ion in an electrolyte solution. It is defined as the ratio of the current carried by a specific ion to the total current flowing through the solution. The transport number, t, is central to understanding ionic mobility, which describes how fast an ion moves under the influence of an electric field. This link connects the physical behavior of ions in solution to the chemical processes that occur during electrochemical...
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Glass-bulb Thermometer:
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Temperature Measurement Sites01:14

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Near-Infrared Temperature Measurement Technique for Water Surrounding an Induction-heated Small Magnetic Sphere
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Determination of ion temperature by two-probe method.

H Makita1, K Kuriki

  • 1Institute of Space and Aeronautical Science, University of Tokyo, Komaba, Meguroku, Tokyo, Japan.

The Review of Scientific Instruments
|March 1, 1978
PubMed
Summary
This summary is machine-generated.

This study introduces a straightforward method for measuring ion temperature in collision-free plasmas using cylindrical and spherical Langmuir probes. The technique leverages theoretical differences in ion current collection to accurately determine plasma ion temperatures.

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Area of Science:

  • Plasma Physics
  • Space Science
  • Applied Physics

Background:

  • Accurate measurement of plasma parameters is crucial for understanding various physical phenomena.
  • Langmuir probes are standard diagnostics for in-situ plasma characterization.
  • Estimating ion temperature in collision-free plasmas presents unique challenges.

Purpose of the Study:

  • To propose a simple and effective method for estimating ion temperature in collision-free plasmas.
  • To utilize the distinct ion current collection properties of cylindrical and spherical Langmuir probes.
  • To validate the proposed method against established theoretical predictions.

Main Methods:

  • Employing both cylindrical and spherical Langmuir probes for plasma measurements.
  • Analyzing the ion-current collection differences between the two probe geometries.
  • Utilizing theoretical predictions from Laframboise's model for ion current analysis.
  • Applying the method to a low-density xenon plasma experiment.

Main Results:

  • A practical method for ion temperature estimation was successfully developed.
  • Experimental data showed good agreement with Laframboise's theoretical predictions.
  • The distinct ion-temperature dependence of ion current collection was confirmed.
  • The method proved effective for analyzing low-density xenon plasma.

Conclusions:

  • The proposed Langmuir probe method offers a simple yet accurate approach to determine ion temperature in collision-free plasmas.
  • The findings validate the theoretical framework of ion current collection for different probe geometries.
  • This technique provides a valuable tool for plasma diagnostics in relevant research areas.