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Abstract:
Liquid noble gas detectors play a leading role for direct detection dark matter experiments. Particularly xenon with its high mass and the absence of radioactive isotopes is well suited as target material and used in the XENON project. To reduce background the detector of the next generation, the XENON1T detector, is planned to be operated with a dynamic, adsorption based purification system to clean the xenon from radon contamination.
In the first part of this bachelor thesis, radon adsorption in presence of xenon was analyzed for different adsorbent samples, to find the best suited material for the radon removal system. In total one metal organic framework and two zeolites were tested.
The second part of the thesis describes measurements of xenon adsorption isotherms on an activated carbon sample at different temperatures.
These measurements should help to answer questions concerning the amount and type of adsorbent required to operate successfully the radon removal system planed for the XENON1T experiment.
