Pulse shape discrimination in CUPID-Mo using principal component analysis

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A90107%2F21%3A00357717" target="_blank" >RIV/68407700:90107/21:00357717 - isvavai.cz</a>

Výsledek na webu

<a href="https://doi.org/10.1088/1748-0221/16/03/P03032" target="_blank" >https://doi.org/10.1088/1748-0221/16/03/P03032</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1088/1748-0221/16/03/P03032" target="_blank" >10.1088/1748-0221/16/03/P03032</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Pulse shape discrimination in CUPID-Mo using principal component analysis

Popis výsledku v původním jazyce

CUPID-Mo is a cryogenic detector array designed to search for neutrinoless double-beta decay (0 nu beta beta) of Mo-100. It uses 20 scintillating Mo-100-enriched Li2MoO4 bolometers instrumented with Ge light detectors to perform active suppression of alpha backgrounds, drastically reducing the expected background in the 0 nu beta beta signal region. As a result, pileup events and small detector instabilities that mimic normal signals become non-negligible potential backgrounds. These types of events can in principle be eliminated based on their signal shapes, which are different from those of regular bolometric pulses. We show that a purely data-driven principal component analysis based approach is able to filter out these anomalous events, without the aid of detector response simulations.

Název v anglickém jazyce

Pulse shape discrimination in CUPID-Mo using principal component analysis

Popis výsledku anglicky

CUPID-Mo is a cryogenic detector array designed to search for neutrinoless double-beta decay (0 nu beta beta) of Mo-100. It uses 20 scintillating Mo-100-enriched Li2MoO4 bolometers instrumented with Ge light detectors to perform active suppression of alpha backgrounds, drastically reducing the expected background in the 0 nu beta beta signal region. As a result, pileup events and small detector instabilities that mimic normal signals become non-negligible potential backgrounds. These types of events can in principle be eliminated based on their signal shapes, which are different from those of regular bolometric pulses. We show that a purely data-driven principal component analysis based approach is able to filter out these anomalous events, without the aid of detector response simulations.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

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OECD FORD obor

10304 - Nuclear physics

Projekt

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Návaznosti

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Rok uplatnění

2021

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Journal of Instrumentation

ISSN

1748-0221

e-ISSN

1748-0221

Svazek periodika

16

Číslo periodika v rámci svazku

3

Stát vydavatele periodika

IT - Italská republika

Počet stran výsledku

13

Strana od-do

1-13

Kód UT WoS článku

000636786100020

EID výsledku v databázi Scopus

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