New experimental limits on the α decays of lead isotopes

Beeman, J. W.; Bellini, F.; Cardani, L.; Casali, N.; Domizio, S. Di; Fiorini, E.; Gironi, L.; Nagorny, S.S.; Nisi, S.; Orio, F.; Pattavina, L.; Pessina, G.; Piperno, G.; Pirro, S.; Previtali, E.; Rusconi, C.; Tomei, C.; Vignati, M.

doi:10.1140/epja/i2013-13050-7

Cited by 48 publications

(51 citation statements)

References 36 publications

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“…In fact, when a particle deposits energy in the absorber, this can be released through the emission of scintillation photons, the production of thermal phonons or the stimulation of not-detectable channels (e.g. lattice imperfections); the same phenomenon is observed in other crystals [25] [28]. However, the energy calibration of the β /γ scale can be corrected by providing a different calibration for this band.…”

Section: Internal Contaminationsmentioning

confidence: 99%

Development of a Li₂MoO₄scintillating bolometer for low background physics

et al. 2013

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We present the performance of a 33 g Li 2 MoO 4 crystal working as a scintillating bolometer. The crystal was tested for more than 400 h in a dilution refrigerator installed in the underground laboratory of Laboratori Nazionali del Gran Sasso (Italy). This compound shows promising features in the frame of neutron detection, dark matter search (solar axions) and neutrinoless double-beta decay physics. Low temperature scintillating properties were investigated by means of different α, β /γ and neutron sources, and for the first time the Light Yield for different types of interacting particle is estimated. The detector shows great ability of tagging fast neutron interactions and high intrinsic radiopurity levels (< 90 µBq/kg for 238 U and < 110 µBq/kg for 232 Th).

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Section: Internal Contaminationsmentioning

confidence: 99%

Development of a Li₂MoO₄scintillating bolometer for low background physics

et al. 2013

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“…This is not the first time a compound produced from archeological Pb is studied. In 2013, our group operated for the first time a PWO 4 scintillating bolometer for the investigation of Pb isotopes α-decay [16].…”

Section: State Of the Artmentioning

confidence: 99%

Production and characterisation of a $$\hbox {PbMoO}_4$$ cryogenic detector from archaeological Pb

et al. 2020

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In this work we operated a massive PbMoO 4 scintillating cryogenic detector of 570 g, produced with archeological Pb. This compound features excellent characteristics in terms of light yield and energy resolution at cryogenic temperatures. The implementation of innovative techniques and procedures for the purification of raw materials used for the crystal growth, and the highly-pure archeological Pb, allowed the production of a massive high quality crystal. We present a full characterization of a PbMoO 4 scintillating crystal at mil-liKelvin temperatures as cryogenic particle detector. a Corresponding authors: luca.pattavina@lngs.infn.it and

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“…In 2013 new limits on the α decay of naturally occurring Pb isotopes were obtained in Ref. [83], by using a 454.1 g PbWO 4 crystal as a bolometer at LNGS un-derground laboratory. The crystal was grown using low background ancient Roman lead.…”

Section: As Shown Inmentioning

confidence: 99%

“…New upper limits on the half-lives of the four natural lead isotopes have been estimated in the range of T 1/2 > 1.4 × 10 20 − 2.6 × 10 21 yr at 90% C.L. with PbWO 4 scintillating bolometer [83] (see also Table 1).…”

Section: As Shown Inmentioning

confidence: 99%

Experimental searches for rare alpha and beta decays

et al. 2019

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The current status of the experimental searches for rare alpha and beta decays is reviewed. Several interesting observations of alpha and beta decays, previously unseen due to their large half-lives (10 15 − 10 20 yr), have been achieved during the last years thanks to the improvements in the experimental techniques and to the underground locations of experiments that allows to suppress backgrounds. In particular, the list includes first observations of alpha decays of 151 Eu, 180 W (both to the ground state of the daughter nuclei), 190 Pt (to excited state of the daughter nucleus), 209 Bi (to the ground and excited states of the daughter nucleus). The isotope 209 Bi has the longest known half-life of T 1/2 ≈ 10 19 yr relatively to alpha decay. The beta decay of 115 In to the first excited state of 115 Sn (Eexc = 497.334 keV), recently observed for the first time, has the Q β value of only (147 ± 10) eV, which is the lowest Q β value known to-date. Searches and investigations of other rare alpha and beta decays ( 48 Ca, 50 V, 96 Zr, 113 Cd, 123 Te, 178m2 Hf, 180m Ta and others) are also discussed.

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New experimental limits on the α decays of lead isotopes

Cited by 48 publications

References 36 publications

Development of a Li₂MoO₄scintillating bolometer for low background physics

Development of a Li₂MoO₄scintillating bolometer for low background physics

Production and characterisation of a $$\hbox {PbMoO}_4$$ cryogenic detector from archaeological Pb

Experimental searches for rare alpha and beta decays

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New experimental limits on the α decays of lead isotopes

Cited by 48 publications

References 36 publications

Development of a Li2MoO4scintillating bolometer for low background physics

Development of a Li2MoO4scintillating bolometer for low background physics

Production and characterisation of a $$\hbox {PbMoO}_4$$ cryogenic detector from archaeological Pb

Experimental searches for rare alpha and beta decays

Contact Info

Product

Resources

About

Development of a Li₂MoO₄scintillating bolometer for low background physics

Development of a Li₂MoO₄scintillating bolometer for low background physics