ADVANCED IN-SITU/ REAL TIME ON GROUND CONTAMINATION MONITORING, PHASE1
Under vacuum outgassing is an effect related to fluids (greases) and polymeric materials including glues, adhesives, paints). The missing air pressure enables embedded solvents etc. to be released into space. This endangers other parts of the spacecraft, as those species may condens on them, e.g. on lenses of cameras.
The ConMon Project aims at development of an in-situ-monitoring method that enables to identify the chemical nature of such condensed layers. After an analysis the most promising method will be selected for setting up a prototype. AAC will use its sublimaiotn device for this development. This is similar to a VBQC-system, enabling to produce defined contamination using typical space materials. Mass spectrometer is used to identify the outgassing species. A QCM will be used to determine quantitatively the condensed mass. Finally, the new method shall in addition to the QCM also state the compositon of the condensed mass. Ex-situ analysis to verifiy the findings on the test surface, will be done by XPS of AC2T.