44
METHODS OF MEASURING PROPERTIES
Figure 3.7. Laser lighl Doppler measurement of size distribution of conductive polymer
particles dispersed in an organic solvent. The sizes range from 9 to 30nm, with a peak at
f2nm. [From B. Wessling, in N. S. Nalwa (2000). Val. 5. Chapter 10, p. 508.1
Magnetic Field
Ion
Source
Collector
Figure 3.8. Sketch of a mass spectrometer utilizing a 90" magnetic field mass analyzer,
showing details ol the ion source: A-amlerator or extractor plate, Eelectron trap,
Milament, lionization chamber, L-focusing lenses, Fkepeller, C l i t s . The magnetic
lidd 01 the mass analyzer is perpendicular to the plane of the page.
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