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Improvement of the energy resolution via an optimized digital signal processing in GERDA Phase I

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An optimized digital shaping filter has been developed for the Gerda experiment which searches for neutrinoless double beta decay in 76Ge. The Gerda Phase I energy calibration data have been reprocessed and an average improvement of 0.3 keV in energy resolution (FWHM) corresponding to 10% at the Q value for 0 neutrino double beta decay in 76Ge is obtained. This is possible thanks to the enhanced low-frequency noise rejection of this Zero Area Cusp (ZAC) signal shaping filter.
2016-01-04
SPRINGER
JRC99834
1434-6044,   
http://rd.springer.com/article/10.1140%2Fepjc%2Fs10052-015-3409-6,    https://publications.jrc.ec.europa.eu/repository/handle/JRC99834,   
10.1140/epjc/s10052-015-3409-6,   
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