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UV Spectrophotometer

Photonics Spectra
Jul 2015
McPhersonRequest Info
 
CHELMSFORD, Mass. — McPherson VUVASMcPherson Inc.’s new UV absorbance spectrophotometer, VUVAS, is suitable for materials and optical characterization, process control and kinetics and optical transient measurement.

The instrument uses direct-detection UV-sensitive CCDs to acquire complex data sets involving spectral response versus temperature or time. Featuring an open-concept sample area, VUVAS works with commercial cryostats as well as sample cells with magnesium fluoride or other UV-transmitting crystalline windows. The computer-optimized optical system delivers focused monochromatic light from deuterium or xenon sources to the sample.

VUVAS comes with a single diffraction grating and light source. A three-position mount for 1-in.-diameter samples is standard, and no parts move during measurement. Options include a grating turret for the monochromator and a double light source attachment.


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GLOSSARY
monochromator
Also known as monochromatic illuminator. An instrument for isolating narrow portions of the spectrum. The spectrum of any light source is formed by a prism or grating, and an exit slit placed in the spectrum selects a narrow band of wavelengths for emission. By moving the spectrum of a source internally past the slit, the color of the emitted light can be varied at will. As most monochromators emit several percentages of unwanted light -- either white or of the wrong wavelength -- along with...
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