Regular Article - Experimental Physics
The matrix optimum filter for low temperature detectors dead-time reduction
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
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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