UHV Point sources - kentax.de

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Mini evaporator on a CF16 flange

The image show a Q5 point source with double shield on a CF16 flange (PS-Q5-CF16).
Due to fast decay curve and low power consumption these arrangement works without shutter and cooling.
The length adapter allows adaptation to UHV systems of the user.

Additional equipment to install a point source on a CF40 flange

The pictures show four CF40 flanges that can be used to mount the point source with connector in a simple way.
The plug of the point source can be mounted in a cooling tank (PS-C) or simple ring holder (PS-H). This allows a setup of different lengths in vacuum and/or with cooling and shutter.

Cooling tank (PS-C) for water or N2 (liquid/gas) on the left side (for flanges No. 2 and 4)
Simple ring holder (PS-H) on the right side (for flanges No. 1 and 3)

CF40 flangs with electrical feed through

CF40 flange (PS-CF40) with electrical feed-through type K, 1mm pins for power supply and vented M3 thread

CF40 flange (PS-CF40C) with electric feed-through type K and 1mm pins for power supply and holes for soldering the cooling feed-through

CF40flange with electrical feed through and CF16 flange

CF40 flangs with electrical feed through and CF16 flange

CF40 flange (PS-CF40/16S) with electric feed-through type K and 1mm pins for power supply, vented M3 tread and CF16 flange for mounting a rotary feed-through for a shutter

CF40 flange (PS-CF40/16SC) with electrical feed-through type K and 1mm pins for power supply, holes for soldering the cooling feed-through and CF16 flange for mounting a rotating feed-through for a shutter

Crucibles

Due to the very low degassing of quartz glass, we recommend crucibles of this material for very pure preparation. Aperture crucibles must be used if the evaporator is mounted horizontal or pointing downwards. The aperture crucible can be used in head-down position for the layer deposition on horizontal surface with masks.
Evaporators in head-down configuration are sold since 2004.

Crucibles with and without aperture

Example to install point sources on a CF40 and CF63 flange

The image one show the installation on flange PS-CF40/16S, exactly as we delivered it to the customer.

The second image show a combination of four point sources on a CF63 flange. They are mounted by a 10mm hole fixed by a M1 screw. All heated can be adjusted to a focus point (sample).
The recommended focus length is 80mm-150mm (end of the crucibles to the sample).
Thermocouple and supply cables uses one feed-through.
A turntable shutter in the center can be mounted additional.

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