Radiopurity of a kg-scale PbWO 4 cryogenic detector produced from archaeological Pb for the RES-NOVA experiment

The RES-NOVA Group of Interest

doi:10.1140/epjc/s10052-022-10656-8

Radiopurity of a kg-scale PbWO ₄ cryogenic detector produced from archaeological Pb for the RES-NOVA experiment

The RES-NOVA Group of Interest

Chair of Experimental Astroparticle Physics

Research output: Contribution to journal › Article › peer-review

8 Scopus citations

Abstract

RES-NOVA is a newly proposed experiment for detecting neutrinos from astrophysical sources, mainly Supernovae, using an array of cryogenic detectors made of PbWO₄ crystals produced from archaeological Pb. This unconventional material, characterized by intrinsic high radiopurity, enables low-background levels in the region of interest for the neutrino detection via Coherent Elastic neutrino-Nucleus Scattering (CEνNS). This signal lies at the detector energy threshold, O(1 keV), and it is expected to be hidden by naturally occurring radioactive contaminants of the crystal absorber. Here, we present the results of a radiopurity assay on a 0.84 kg PbWO₄ crystal produced from archaeological Pb operated as a cryogenic detector. The crystal internal radioactive contaminations are: ²³²Th <40 μ Bq/kg, ²³⁸U <30 μ Bq/kg, ²²⁶Ra 1.3 mBq/kg and ²¹⁰Pb 22.5 mBq/kg. We also present a background projection for the final experiment and possible mitigation strategies for further background suppression. The achieved results demonstrate the feasibility of realizing this new class of detectors.

Original language	English
Article number	692
Journal	European Physical Journal C
Volume	82
Issue number	8
DOIs	https://doi.org/10.1140/epjc/s10052-022-10656-8
State	Published - Aug 2022

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@article{b4d3beb52af44b68a3e571c8ce5daa38,

title = "Radiopurity of a kg-scale PbWO 4 cryogenic detector produced from archaeological Pb for the RES-NOVA experiment",

abstract = "RES-NOVA is a newly proposed experiment for detecting neutrinos from astrophysical sources, mainly Supernovae, using an array of cryogenic detectors made of PbWO4 crystals produced from archaeological Pb. This unconventional material, characterized by intrinsic high radiopurity, enables low-background levels in the region of interest for the neutrino detection via Coherent Elastic neutrino-Nucleus Scattering (CEνNS). This signal lies at the detector energy threshold, O(1 keV), and it is expected to be hidden by naturally occurring radioactive contaminants of the crystal absorber. Here, we present the results of a radiopurity assay on a 0.84 kg PbWO4 crystal produced from archaeological Pb operated as a cryogenic detector. The crystal internal radioactive contaminations are: 232Th <40 μ Bq/kg, 238U <30 μ Bq/kg, 226Ra 1.3 mBq/kg and 210Pb 22.5 mBq/kg. We also present a background projection for the final experiment and possible mitigation strategies for further background suppression. The achieved results demonstrate the feasibility of realizing this new class of detectors.",

author = "{The RES-NOVA Group of Interest} and Beeman, {J. W.} and G. Benato and C. Bucci and L. Canonica and P. Carniti and E. Celi and M. Clemenza and A. D{\textquoteright}Addabbo and Danevich, {F. A.} and {Di Domizio}, S. and S. DiLorenzo and Dubovik, {O. M.} and {Ferreiro Iachellini}, N. and F. Ferroni and E. Fiorini and S. Fu and A. Garai and S. Ghislandi and L. Gironi and P. Gorla and C. Gotti and Guillaumon, {P. V.} and Helis, {D. L.} and Kovtun, {G. P.} and M. Mancuso and L. Marini and M. Olmi and L. Pagnanini and L. Pattavina and G. Pessina and F. Petricca and S. Pirro and S. Pozzi and A. Puiu and S. Quitadamo and J. Rothe and Scherban, {A. P.} and S. Sch{\"o}nert and Solopikhin, {D. A.} and R. Strauss and E. Tarabini and Tretyak, {V. I.} and Tupitsyna, {I. A.} and V. Wagner",

note = "Publisher Copyright: {\textcopyright} 2022, The Author(s).",

year = "2022",

month = aug,

doi = "10.1140/epjc/s10052-022-10656-8",

language = "English",

volume = "82",

journal = "European Physical Journal C",

issn = "1434-6044",

publisher = "Springer Nature",

number = "8",

}

TY - JOUR

T1 - Radiopurity of a kg-scale PbWO 4 cryogenic detector produced from archaeological Pb for the RES-NOVA experiment

AU - The RES-NOVA Group of Interest

AU - Beeman, J. W.

AU - Benato, G.

AU - Bucci, C.

AU - Canonica, L.

AU - Carniti, P.

AU - Celi, E.

AU - Clemenza, M.

AU - D’Addabbo, A.

AU - Danevich, F. A.

AU - Di Domizio, S.

AU - DiLorenzo, S.

AU - Dubovik, O. M.

AU - Ferreiro Iachellini, N.

AU - Ferroni, F.

AU - Fiorini, E.

AU - Fu, S.

AU - Garai, A.

AU - Ghislandi, S.

AU - Gironi, L.

AU - Gorla, P.

AU - Gotti, C.

AU - Guillaumon, P. V.

AU - Helis, D. L.

AU - Kovtun, G. P.

AU - Mancuso, M.

AU - Marini, L.

AU - Olmi, M.

AU - Pagnanini, L.

AU - Pattavina, L.

AU - Pessina, G.

AU - Petricca, F.

AU - Pirro, S.

AU - Pozzi, S.

AU - Puiu, A.

AU - Quitadamo, S.

AU - Rothe, J.

AU - Scherban, A. P.

AU - Schönert, S.

AU - Solopikhin, D. A.

AU - Strauss, R.

AU - Tarabini, E.

AU - Tretyak, V. I.

AU - Tupitsyna, I. A.

AU - Wagner, V.

PY - 2022/8

Y1 - 2022/8

N2 - RES-NOVA is a newly proposed experiment for detecting neutrinos from astrophysical sources, mainly Supernovae, using an array of cryogenic detectors made of PbWO4 crystals produced from archaeological Pb. This unconventional material, characterized by intrinsic high radiopurity, enables low-background levels in the region of interest for the neutrino detection via Coherent Elastic neutrino-Nucleus Scattering (CEνNS). This signal lies at the detector energy threshold, O(1 keV), and it is expected to be hidden by naturally occurring radioactive contaminants of the crystal absorber. Here, we present the results of a radiopurity assay on a 0.84 kg PbWO4 crystal produced from archaeological Pb operated as a cryogenic detector. The crystal internal radioactive contaminations are: 232Th <40 μ Bq/kg, 238U <30 μ Bq/kg, 226Ra 1.3 mBq/kg and 210Pb 22.5 mBq/kg. We also present a background projection for the final experiment and possible mitigation strategies for further background suppression. The achieved results demonstrate the feasibility of realizing this new class of detectors.

AB - RES-NOVA is a newly proposed experiment for detecting neutrinos from astrophysical sources, mainly Supernovae, using an array of cryogenic detectors made of PbWO4 crystals produced from archaeological Pb. This unconventional material, characterized by intrinsic high radiopurity, enables low-background levels in the region of interest for the neutrino detection via Coherent Elastic neutrino-Nucleus Scattering (CEνNS). This signal lies at the detector energy threshold, O(1 keV), and it is expected to be hidden by naturally occurring radioactive contaminants of the crystal absorber. Here, we present the results of a radiopurity assay on a 0.84 kg PbWO4 crystal produced from archaeological Pb operated as a cryogenic detector. The crystal internal radioactive contaminations are: 232Th <40 μ Bq/kg, 238U <30 μ Bq/kg, 226Ra 1.3 mBq/kg and 210Pb 22.5 mBq/kg. We also present a background projection for the final experiment and possible mitigation strategies for further background suppression. The achieved results demonstrate the feasibility of realizing this new class of detectors.

UR - http://www.scopus.com/inward/record.url?scp=85135813730&partnerID=8YFLogxK

U2 - 10.1140/epjc/s10052-022-10656-8

DO - 10.1140/epjc/s10052-022-10656-8

M3 - Article

AN - SCOPUS:85135813730

SN - 1434-6044

VL - 82

JO - European Physical Journal C

JF - European Physical Journal C

IS - 8

M1 - 692

ER -

Radiopurity of a kg-scale PbWO ₄ cryogenic detector produced from archaeological Pb for the RES-NOVA experiment

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