%0 Journal Article
%A Stadlmayr, Reinhard
%A Szabo, Paul Stefan
%A Biber, Herbert
%A Koslowski, Hans Rudolf
%A Kadletz, Elisabeth
%A Cupak, Christian
%A Wilhelm, Richard Arthur
%A Schmid, Michael
%A Linsmeier, Christian
%A Aumayr, Friedrich
%T A high temperature dual-mode quartz crystal microbalance technique for erosion and thermal desorption spectroscopy measurements
%J Review of scientific instruments
%V 91
%N 12
%@ 1089-7623
%C [S.l.]
%I American Institute of Physics
%M FZJ-2021-01720
%P 125104 -
%D 2020
%X An improved quartz crystal microbalance measurement method is described, which allows us to determine erosion, implantation, and release rates of thin films, during changing temperatures and up to 700 K. A quasi-simultaneous excitation of two eigenmodes of the quartz resonator is able to compensate for frequency drifts due to temperature changes. The necessary electronics, the controlling behavior, and the dual-mode temperature compensation are described. With this improved technique, quantitative in situ temperature-programmed desorption measurements are possible and the quartz crystal microbalance can be used for quantification of thermal desorption spectroscopy measurements with a quadrupole mass spectrometer. This is demonstrated by a study of the retention and release behavior of hydrogen isotopes in fusion-relevant materials. We find that more than 90% of the deuterium implanted into a thin film of beryllium is released during a subsequent temperature ramp up to 500 K
%F PUB:(DE-HGF)16
%9 Journal Article
%$ 33379941
%U <Go to ISI:>//WOS:000597333200001
%R 10.1063/5.0012028
%U https://juser.fz-juelich.de/record/891760