TY  - JOUR
AU  - Stadlmayr, Reinhard
AU  - Szabo, Paul Stefan
AU  - Biber, Herbert
AU  - Koslowski, Hans Rudolf
AU  - Kadletz, Elisabeth
AU  - Cupak, Christian
AU  - Wilhelm, Richard Arthur
AU  - Schmid, Michael
AU  - Linsmeier, Christian
AU  - Aumayr, Friedrich
TI  - A high temperature dual-mode quartz crystal microbalance technique for erosion and thermal desorption spectroscopy measurements
JO  - Review of scientific instruments
VL  - 91
IS  - 12
SN  - 1089-7623
CY  - [S.l.]
PB  - American Institute of Physics
M1  - FZJ-2021-01720
SP  - 125104 -
PY  - 2020
AB  - 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
LB  - PUB:(DE-HGF)16
C6  - 33379941
UR  - <Go to ISI:>//WOS:000597333200001
DO  - DOI:10.1063/5.0012028
UR  - https://juser.fz-juelich.de/record/891760
ER  -