The HIS 13 VUV product  | © Scienta Omicron
HIS 13 VUV source.
The Focus UHV Evaporator product  | © Scienta Omicron
The modern, low noise digital power supply provides up to 300 mA discharge current. The power supply supports the automatic plasma ignition and a Pirani pressure gauge.

HIS 13

High Intensity VUV Source


  • Ease of operation
  • Robust design
  • Discharge regulation
  • Precise alignment with line of sight viewport
  • More than 300 installed units
  • Large range of options

The HIS 13 is a flange mounted and easy to integrate vacuum ultraviolet photon source for standard and advanced photoelectron spectroscopy applications. 

The excellent performance, ease-of-operation and it´s robust design makes the HIS 13 VUV light source an excellent choice for ultraviolet photoelectron spectroscopy.

The operation of the lamp is based on a cold cathode capillary discharge. There is a windowless direct sight connection between the discharge area and the target. The discharge current is electronically stabilised.

The lamp is water cooled in order to allow for high discharge currents (up to 300 mA) and optimum uptime.

The HIS 13 can be operated with various discharge gases, such as helium, neon, argon, krypton, xenon or hydrogen. In many applications it is operated with helium in the He I mode delivering a very narrow (1...3 meV) emission line at 21.2 eV (584 nm) that is commonly used for standard UPS. 

A choice of light capillaries and an optional 3rd pumping stage allows configuring the source according to the experimental requirements (photon flux vs. operating pressure etc.)

An integral portaligner faciliates the positioning of the light spot on the sample in a range of ± 3°.



Photo current

> 80 nA (biased AI foil)

Useful gas discharge lines

He I, He II, Ne II, Ar I, Ar II, Kr I, Kr II, Xe I, Xe II, H (Lyα, Lyβ)


Selectable length & diameter


Water cooling

Discharge power

Up to 300 W

Operating pressure

Down to 10-10 mbar (He I)

Differential pumping

Two or three (optional) stage

Mounting flange

DN 40 CF 2¾″ OD

Alignment & discharge control

Via backside viewport


± 3° port aligner

Bake out temperature

Up to 250 °C

Plasma Ignition


For full specifications and more information about product options, please do not hesitate to contact your local sales representative.

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