Particle Size Photos
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Particle size photos taken in resonator flow

Speed: 1/30 s
Aperture: f/3.5
Laser: ~50%
Speed: 1/60 s
Aperture: f/3.5
Laser: ~50%
Speed: 1/60 s
Aperture: f/2.7
Laser: ~50%

Speed: 1/30 s
Aperture: f/3.4
Laser: ~50%
Speed: 1/125 s
Aperture: f/3.5
Laser: ~100%		 size5.jpg (235807 bytes)
Speed: 1/15 s
Aperture: f/4.0
Laser: ~70%

Machinist's Scale
(Coolpix @ 2cm min. focal length)
Chamber Width: 0.220"

 

Comparison with known particle sizes
30micron1.jpg (2147993 bytes)
Actual Dia.: 30 microns
Estimated Dia.: 103 microns		 30micron2.jpg (2331932 bytes)
Actual Dia.: 30 microns
Estimated Dia.: 53 microns
30micron_bloom1.jpg (36280 bytes)
pixel blooming taken from photo above		 30micron_bloom2.jpg (46550 bytes)
pixel blooming taken from photo above
12micron1.jpg (2966723 bytes)
Actual Dia.: 12 microns
Estimated Dia.: 26 microns		 12micron2.jpg (2547929 bytes)
Actual Dia.: 12 microns
Estimated Dia.: 27 microns
12micron_bloom1.jpg (39032 bytes)
pixel blooming taken from photo above		 12micron_bloom2.jpg (44542 bytes)
pixel blooming taken from photo above
Scale increments in photos above: 1/64"