Repeatability and Precision of Laser Diffraction Measurements of Small Objects

Details Repeatability and Precision of Laser Diffraction Measurements of Small Objects Repeatability and Precision of Laser Diffraction Measurements of Small Objects

Dec 2006

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006aas...20920904d&link_type=abstract

2007 AAS/AAPT Joint Meeting, American Astronomical Society Meeting 209, #209.04; Bulletin of the American Astronomical Society,

Astronomy and Astrophysics

Astronomy

Scientific paper

In this poster we’ll present results of using diffraction measurements to infer the size of small objects such as the diameter of a human hair. We’ll compare the diffraction results with visual measurements through a microscope, and we’ll discuss repeatability of the diffraction measurements across semesters, which can enable the use of hair samples as an unknown in a diffraction laboratory. Finally, we’ll show that there are large variations in the diameter of human hair even from a single spot of an individual’s head.

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