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UV Source

UV Source

The UV Source (UVS) is a high intensity Photon Source that can be operated with a variety of discharge gases.

The UVS is water cooled for maximum stability and features fully interlocked safety circuitry. The discharge has a maximum photon intensity at a pressure of several mbar so dual differential pumping stages are employed in order to maintain the host chamber pressure.

The UVS 40A2 is designed so that a continuous gas flow is maintained through the discharge region. This is a great advantage in maintaining the cleanliness of the discharge capillary and results in very long service intervals.

The UVS 40A2 is used in UPS (ultraviolet photoelectron spectroscopy) research.

  • Henniker Scientific UV Source
  • Henniker Scientific UV Source US40 PS Controller
  • Henniker Scientific UV Source
  • Henniker Scientific UV Source US40 PS Controller

UV Source Power Supply UV40A-PS

The UV40A-PS can work in either constant discharge current or discharge voltage mode to provide the best operation conditions for the UV source. The source can be automatically ignited directly from the power supply or manually on the source via a piezo-electric igniter.

All adjustable parameters are clearly displayed on the large front-panel LCD and precisely controlled via digital encoders. The unit also features a built in timer and automatic standby mode. The UV40A-PS can be supplied as a full width 19” rack mounting unit (3U height) or free standing. The unit can be operated via the intuitive touchscreen interface or dedicated software application (via PC or mobile application).

The UV40A-PS power supply drives the UV40A1 UV Source which is used for ultraviolet photoelectron spectroscopy (UPS). It allows efficient and accurate control of the He I / He II ratio via precise adjustment of helium pressure and discharge current.


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  • Can be operated with various discharge gases
  • Manual or auto ignition
  • Easy operation
  • Stable output
  • Special designed discharge chamber
  • Electronically stabilised discharge current
  • Windowless, direct sight connection


  • Gas dosing system
  • Customised insertion length
  • Linear shift (50 - 100 mm)
  • Differential pumping (required)
  • Chiller 
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