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
  

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).