All Figures

$\begin{figure} \par\includegraphics[height=4.5cm,width=5.5cm,clip]{2327f1a.ps}\i... ...7f1e.ps}\includegraphics[height=4.5cm,width=5.5cm,clip]{2327f1f.ps} \end{figure}$ Figure 1: SEM images of the dust samples. From left to right, from top to bottom: Large silica spheres, small silica spheres, diamond grains, SiC grains, graphite grains, and iron spheres.
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In the text

$\begin{figure} \par\includegraphics[width=5.2cm,clip]{2327f2a.ps}\hspace*{2mm} \... ...f2e.ps}\hspace*{2mm} \includegraphics[width=5.2cm,clip]{2327f2f.ps} \end{figure}$ Figure 2: Size distributions with average diameter, mean axes ratio, and the size of a particle with average mass.
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In the text

$\begin{figure} \par\includegraphics[width=8.6cm,clip]{2327f3.ps} \end{figure}$ Figure 3: Schematics of the experimental setup.
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In the text

$\begin{figure} \par\includegraphics[width=8.8cm,clip]{2327f4.ps} \end{figure}$ Figure 4: Comparison of former measurements on charging of individual $\rm SiO_2$ spheres colliding with quartz targets or a silicon wafer (Poppe et al. 2000b, small symbols) and the new measurements of the average charge transfer to conducting targets. The meaning of the codes a-j is the same as in Table 1, and their position on the abscissa shows where to find the corresponding data points. The symbols indicate the target type. Square: aluminium, cross: iron, $\times$ -cross: graphite. The center interrupted line represents Eq. (1), the center solid line the one derived from the new data a, b, c, and d. The thin outer lines are the center lines times 3 and 1/3.
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In the text

$\begin{figure} \par\includegraphics[width=8.8cm,clip]{2327f5a.ps}\par\vspace*{3mm} \includegraphics[width=8.8cm,clip]{2327f5b.ps} \end{figure}$ Figure 5: The measured charge separations with iron spheres at cogwheel ( $Q_{\rm C}$ ) and targets ( $Q_{\rm T}$ ) for a given feed of 1 mm. On top with a cogwheel velocity of 38 $\rm m~s^{-1}$ , on the bottom with 67 $\rm m~s^{-1}$ . Square: aluminum target. Cross: iron target. $\times$ -cross: graphite target.
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In the text

$\begin{figure} \par\includegraphics[width=8.8cm,clip]{2327f6.ps} \end{figure}$ Figure 6: The charge ratio $\frac{Q_{\rm T}}{Q_{\rm C}}$ as a function of target temperature. The vertical lines mark the range of particle temperature (room temperature). Cross: iron target and $\rm SiO_2$ spheres. $\times$ -cross: aluminum target and $\rm SiO_2$ spheres. Square: aluminum target and diamond grains. All experimental runs were carried out at $67~\rm m~s^{-1}$ circumference velocity of the cogwheel dust disperser.
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In the text

$\begin{figure} \par\includegraphics[height=4.5cm,width=5.5cm,clip]{2327f1a.ps}\i... ...7f1e.ps}\includegraphics[height=4.5cm,width=5.5cm,clip]{2327f1f.ps} \end{figure}$	Figure 1: SEM images of the dust samples. From left to right, from top to bottom: Large silica spheres, small silica spheres, diamond grains, SiC grains, graphite grains, and iron spheres.
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$\begin{figure} \par\includegraphics[width=5.2cm,clip]{2327f2a.ps}\hspace{2mm} \... ...f2e.ps}\hspace{2mm} \includegraphics[width=5.2cm,clip]{2327f2f.ps} \end{figure}$	Figure 2: Size distributions with average diameter, mean axes ratio, and the size of a particle with average mass.
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$\begin{figure} \par\includegraphics[width=8.6cm,clip]{2327f3.ps} \end{figure}$	Figure 3: Schematics of the experimental setup.
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$\begin{figure} \par\includegraphics[width=8.8cm,clip]{2327f5a.ps}\par\vspace*{3mm} \includegraphics[width=8.8cm,clip]{2327f5b.ps} \end{figure}$	Figure 5: The measured charge separations with iron spheres at cogwheel ( $Q_{\rm C}$ ) and targets ( $Q_{\rm T}$ ) for a given feed of 1 mm. On top with a cogwheel velocity of 38 $\rm m~s^{-1}$ , on the bottom with 67 $\rm m~s^{-1}$ . Square: aluminum target. Cross: iron target. $\times$ -cross: graphite target.
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