Distributed Products SPeCS

UltraViolet (UPS) Sources  
and accessories  

 

 A long established speciality of SPECS, the UPS sources and accessories again set the standard for performance and ease of use. The range includes "standard" differentially pumped helium discharge devices and a high density plasma discharge source.
  The UVS 10/35 UV Source

is a differentially pumped high performance ultraviolet source for surface analysis experiments.

UPS source UVS1035 Its main features are:
  • stable output of HeI and HeII radiation controlled by adjusting the pressure in the discharge cell
  • air-cooled
  • easy operation
  • differential pumping
  • high photon flux for high intensity
  • long working distance
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  The UVS 300 High Density Plasma UV Source

is a newly developed VUV larnp based on the duoplasmatron principle, i.e. magnetic confinement of the plasma. Under the direction of Prof. U. Gerhardt of the University of Frankfurt, this principle has led to a new UV lamp which combines excellent performance and simple instrumental setup. The UVS 300 is manufactured by SPECS GmbH under an exclusive license of the University of Frankfurt.

UPS source UVS300 Its main features are:
  • Integrated intensity >200nA photocurrent for capillary with 1mm diameter and 113mm length
  • Long term stability due to absence of sputtering effects
  • High spectral purity
  • Only one stage of differential pumping required
  • Integrated micro isolation valve
  • Easy to start and operate
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  UPS Gas Cell, UGC 10

This unique device enables the highest performance UPS measurements on gases with smallest line width and minimal gas loading on the instrument pumping. The cell is tuned to work best with the SPECS UV-light Source UVS10/35 to which it can be field retrofitted.

UPS gas cell fitted to UVS10/35 Its main features include:
  • The special geometry of the cell with space charge compensation electrodes which provides a virtually uni-potential ionization volume.
  • Driven with well defined UV-light and sample gas (e.g. HeI or Ne or Ar 3p lines) the source is well suited to demonstrate the ultimate energy resolution of electron energy analyzers.
  • Dimensions can be adapted to customer requirements.
  • Bakeable up to 250°C.
  • Easy to operate
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