Low cost, high intensity UV source for ultraviolet photoelectron spectroscopy. Used & specified by many OEM manufacturers worldwide.

The UVS 40A2 is a high intensity UV Source that can be operated with various discharge gases, such as helium, neon, krypton, argon, xenon or hydrogen. It is a high specification, cost effective instrument that is used and specified on many other manufacturer's systems. The operation of the lamp is based on the principle of 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. An integral port aligner facilities the positioning of the light spot on the sample in a range of ± 4o. Interlock circuitry protects the UV source from accidental damage.
 
Application
The light capillary can be adapted to the experiment by selecting its length and inner diameter. It is available with 1 mm or 1.5 mm ID. (1.5 mm is standard). The outer diameter of the capillary is 8mm and this is placed co-axially into a shielding tube of 9.5 mm OD. Insertion length options are from 10 mm to 350 mm, standard is 220mm (NB the capillary length and ID determine overall performance). The discharge has a maximum photon intensity at a pressure of several mbar in the lamp and so dual differential pumping stages are employed to minimise any effect upon the chamber pressure.

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

You can download the data sheet here;   Prevac UV Source UVS40 A2

UVS40A2 UV Source:   >8E6 photons/s*sr <1o beam divergence bakeable up to 150oC adjustable He I/He II up to 1:2 working distance 27-50mm

Power Supply:	Creator Software Module:
Adjustable HE I/He II Output:

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