https://doi.org/10.1140/epjc/s10052-022-10379-w
Regular Article - Experimental Physics
The matrix optimum filter for low temperature detectors dead-time reduction
1
Dipartimento di Fisica “G. Occhialini”, Università di Milano-Bicocca, 20126, Milan, Italy
2
INFN-Milano-Bicocca, 20126, Milan, Italy
3
Gran Sasso Science Institute (GSSI), 67100, L’Aquila, Italy
4
INFN-Laboratori Nazionali del Gran Sasso, Assergi, 67100, L’Aquila, Italy
Received:
12
January
2022
Accepted:
2
May
2022
Published online:
10
May
2022
Experiments aiming at high sensitivities usually demand for a very high statistics in order to reach more precise measurements. However, for those exploiting Low Temperature Detectors (LTDs), a high source activity may represent a drawback, if the events rate becomes comparable with the detector characteristic temporal response. Indeed, since commonly used optimum filtering approaches can only process LTDs signals well isolated in time, a non-negligible part of the recorded experimental data-set is discarded and hence constitute the dead-time. In the presented study we demonstrate that, thanks to the matrix optimum filtering approach, the dead-time of an experiment exploiting LTDs can be strongly reduced.
© The Author(s) 2022
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