Eine Apparatur zur Desorptionsspektroskopie an porösen Festkörpern bei tiefen Temperaturen

A newly developed apparatus for Temperature Programmed Desorption spectroscopy (TPD) in the temperature range between 10 and 100 K is presented. It is provided for the investigation of porous solids especially for use in vacuum engineering, for instance activated charcoal and zeolithe. Favoured working regime is a linear temperature schedule with some parts of a Kelvin per minute, but all other schedules and a variation of the heating rate over the factor 10 are also available. The whole measuring process takes place automatically and under computer control – so a simultaneous registration of a large number of measured gases is possible.