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   Your location > Components > UV Sources > UVS 300

Ultraviolet Source UVS 300

Ultraviolet Source UVS 300
   

Features:

  • High Flux
  • Easy installation and operation
  • Small Spot and Monochromator Options
  • Easy filament replacement through micro-valve
  • Best He II intensity on the market
  • High plasma density

Optional Feature: Focus capillary

High resolution photoemission measurements demand not only a highest performance electron spectrometer, but also a UV source with high flux density and small spot size, especially for angular resolved studies. SPECS has developed a focused UV source on the basis of the proven technology of the UVS 300 source. Using a special capillary, this source can be focused down to a theoretical spot size of 500 micrometers.

 

Applications:

  • Angular Resolved Ultraviolet Photoelectron Spectroscopy (ARUPS)
  • Fermi Surface Mapping

 

small-spot-image-oben
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 Simulated spot profiles using the Monte-Carlo
multiple scattering ray-tracing program.
Left: standard quartz capillary.
Right: focusing capillary.
small-spot_unten
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 Measured spot profiles, using a Faraday cup
with a 115 micrometer entrance aperture.
Left: standard quartz capillary.
Right: focusing capillary.
   

Product description:
For ultraviolet photoelectron spectroscopy on solids (UPS), the high performance Ultraviolet Source UVS 300 is ideally suited. The UVS 300 generates a high density plasma by guiding the electrons extracted from a hot cathode filament along the lines of a strongly inhomogeneous magnetic field towards the small discharge region (duo-plasmatron principle). The strong vacuum ultraviolet radiation is extracted from the cathode side by the combination of a metal and a quartz capillary. Differential pumping (50 l/s) between these two capillaries enables to work at very low pressure in the analysis chamber (∼ 1x10-9 mbar or below).

Installation of the UVS 300 is easy because the source has only one differential pumping stage. UVS_300_drawing_small
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UV Source Series Brochure
UV Source Series Brochure
For more information contact us


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