Radon contamination measurement in the SuperNEMO demonstrator

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A90263%2F24%3A00381672" target="_blank" >RIV/68407700:90263/24:00381672 - isvavai.cz</a>

Výsledek na webu

<a href="https://doi.org/10.22323/1.441.0292" target="_blank" >https://doi.org/10.22323/1.441.0292</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.22323/1.441.0292" target="_blank" >10.22323/1.441.0292</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Radon contamination measurement in the SuperNEMO demonstrator

Popis výsledku v původním jazyce

The neutrino, as a neutral particle can be identical to its antiparticle, i.e, a Majorana particle. SuperNEMO aims at searching for the neutrinoless double beta decay (0vββ), whose observation would prove that the neutrino is a Majorana particle. The 0vββ process, beyond the Standard Model, is very rare and the level of background should be extremely small. One source of background comes from the 222Rn emanation from the detector components or diffusion from the air of the laboratory towards the tracker. The daughter isotope, of 222Rn, the 214Bi can by (β, γ) disintegration produce two electrons with an energy around 3 MeV and therefore constitute a source of background for 0vββ. The SuperNEMO demonstrator should prove the capacity to reduce the 222Rn activity to to a level less than 0.15 mBq/m3. Here, I present the preliminary measurement of the 222Rn activity in the demonstrator, based on first data acquired without shieldings, without injection of Radon free air in the antiradon tent, and purification of the tracker gas by the Radon trap.

Název v anglickém jazyce

Radon contamination measurement in the SuperNEMO demonstrator

Popis výsledku anglicky

The neutrino, as a neutral particle can be identical to its antiparticle, i.e, a Majorana particle. SuperNEMO aims at searching for the neutrinoless double beta decay (0vββ), whose observation would prove that the neutrino is a Majorana particle. The 0vββ process, beyond the Standard Model, is very rare and the level of background should be extremely small. One source of background comes from the 222Rn emanation from the detector components or diffusion from the air of the laboratory towards the tracker. The daughter isotope, of 222Rn, the 214Bi can by (β, γ) disintegration produce two electrons with an energy around 3 MeV and therefore constitute a source of background for 0vββ. The SuperNEMO demonstrator should prove the capacity to reduce the 222Rn activity to to a level less than 0.15 mBq/m3. Here, I present the preliminary measurement of the 222Rn activity in the demonstrator, based on first data acquired without shieldings, without injection of Radon free air in the antiradon tent, and purification of the tracker gas by the Radon trap.

Druh

D - Stať ve sborníku

CEP obor

—

OECD FORD obor

10304 - Nuclear physics

Projekt

—

Návaznosti

—

Rok uplatnění

2024

Kód důvěrnosti údajů

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

Název statě ve sborníku

Proc. XVIII International Conference on Topics in Astroparticle and Underground Physics

ISBN

—

ISSN

1824-8039

e-ISSN

1824-8039

Počet stran výsledku

5

Strana od-do

1-5

Název nakladatele

Sissa Medialab Srl

Místo vydání

Trieste

Místo konání akce

Vienna

Datum konání akce

28. 8. 2023

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

001327036000161