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CALDER: neutrinoless double-beta decay identification in TeO[Formula: see text] bolometers with kinetic inductance detectors.

Battistelli ES, Bellini F, Bucci C, Calvo M, Cardani L, Casali N, Castellano MG, Colantoni I, Coppolecchia A, Cosmelli C, Cruciani A, de Bernardis P, Di Domizio S, D'Addabbo A, Martinez M, Masi S, Pagnanini L, Tomei C, Vignati M - Eur Phys J C Part Fields (2015)

Bottom Line: CUORE , an array of 988 TeO[Formula: see text] bolometers being commissioned at Laboratori Nazionali del Gran Sasso, features an expected sensitivity of 50-130[Formula: see text] at 90 % C.L.The background is expected to be dominated by [Formula: see text] radioactivity, and can be in principle removed by detecting the small amount of Cherenkov  light emitted by the [Formula: see text] signal.The R&D is focused on the light detectors in view of the implementation in a next-generation neutrinoless double-beta decay experiment.

View Article: PubMed Central - PubMed

Affiliation: Dipartimento di Fisica, Sapienza Università di Roma, Rome, Italy.

ABSTRACT

Next-generation experiments searching for neutrinoless double-beta decay must be sensitive to a Majorana neutrino mass as low as 10[Formula: see text]. CUORE , an array of 988 TeO[Formula: see text] bolometers being commissioned at Laboratori Nazionali del Gran Sasso, features an expected sensitivity of 50-130[Formula: see text] at 90 % C.L. The background is expected to be dominated by [Formula: see text] radioactivity, and can be in principle removed by detecting the small amount of Cherenkov  light emitted by the [Formula: see text] signal. The Cryogenic wide-Area Light Detectors with Excellent Resolution project aims at developing a small prototype experiment consisting of TeO[Formula: see text] bolometers coupled to high-sensitivity light detectors based on kinetic inductance detectors. The R&D is focused on the light detectors in view of the implementation in a next-generation neutrinoless double-beta decay experiment.

No MeSH data available.


Related in: MedlinePlus

SONNET simulation of the on-resonance current flowing in a single pixel. The pixel is composed of an inductive meander, which is the active area, and an interdigitated capacitor to enlarge the resonant wavelength and to make the current across the inductor uniform (see description in the text)
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Fig1: SONNET simulation of the on-resonance current flowing in a single pixel. The pixel is composed of an inductive meander, which is the active area, and an interdigitated capacitor to enlarge the resonant wavelength and to make the current across the inductor uniform (see description in the text)

Mentions: The design aims at obtaining at the same time a large active area, a high resonant frequency and a high fraction of kinetic inductance . The prototype single pixel we present is wide and, as shown in Fig. 1, consists of an inductive meander (14 connected strips of ), representing the active area, and a capacitor (5 interdigitated fingers of ). To reduce the geometric inductance in favor of the kinetic inductance the spacing between meanders is minimized () resulting in an estimate of for a 40 Al film. The capacitance is chosen to keep the current flowing through the meander uniform within a factor 20 %. The width of the fingers and their separation () are designed to decrease the local electric field and, consequently, TLS noise [31].Fig. 1


CALDER: neutrinoless double-beta decay identification in TeO[Formula: see text] bolometers with kinetic inductance detectors.

Battistelli ES, Bellini F, Bucci C, Calvo M, Cardani L, Casali N, Castellano MG, Colantoni I, Coppolecchia A, Cosmelli C, Cruciani A, de Bernardis P, Di Domizio S, D'Addabbo A, Martinez M, Masi S, Pagnanini L, Tomei C, Vignati M - Eur Phys J C Part Fields (2015)

SONNET simulation of the on-resonance current flowing in a single pixel. The pixel is composed of an inductive meander, which is the active area, and an interdigitated capacitor to enlarge the resonant wavelength and to make the current across the inductor uniform (see description in the text)
© Copyright Policy - OpenAccess
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC4528268&req=5

Fig1: SONNET simulation of the on-resonance current flowing in a single pixel. The pixel is composed of an inductive meander, which is the active area, and an interdigitated capacitor to enlarge the resonant wavelength and to make the current across the inductor uniform (see description in the text)
Mentions: The design aims at obtaining at the same time a large active area, a high resonant frequency and a high fraction of kinetic inductance . The prototype single pixel we present is wide and, as shown in Fig. 1, consists of an inductive meander (14 connected strips of ), representing the active area, and a capacitor (5 interdigitated fingers of ). To reduce the geometric inductance in favor of the kinetic inductance the spacing between meanders is minimized () resulting in an estimate of for a 40 Al film. The capacitance is chosen to keep the current flowing through the meander uniform within a factor 20 %. The width of the fingers and their separation () are designed to decrease the local electric field and, consequently, TLS noise [31].Fig. 1

Bottom Line: CUORE , an array of 988 TeO[Formula: see text] bolometers being commissioned at Laboratori Nazionali del Gran Sasso, features an expected sensitivity of 50-130[Formula: see text] at 90 % C.L.The background is expected to be dominated by [Formula: see text] radioactivity, and can be in principle removed by detecting the small amount of Cherenkov  light emitted by the [Formula: see text] signal.The R&D is focused on the light detectors in view of the implementation in a next-generation neutrinoless double-beta decay experiment.

View Article: PubMed Central - PubMed

Affiliation: Dipartimento di Fisica, Sapienza Università di Roma, Rome, Italy.

ABSTRACT

Next-generation experiments searching for neutrinoless double-beta decay must be sensitive to a Majorana neutrino mass as low as 10[Formula: see text]. CUORE , an array of 988 TeO[Formula: see text] bolometers being commissioned at Laboratori Nazionali del Gran Sasso, features an expected sensitivity of 50-130[Formula: see text] at 90 % C.L. The background is expected to be dominated by [Formula: see text] radioactivity, and can be in principle removed by detecting the small amount of Cherenkov  light emitted by the [Formula: see text] signal. The Cryogenic wide-Area Light Detectors with Excellent Resolution project aims at developing a small prototype experiment consisting of TeO[Formula: see text] bolometers coupled to high-sensitivity light detectors based on kinetic inductance detectors. The R&D is focused on the light detectors in view of the implementation in a next-generation neutrinoless double-beta decay experiment.

No MeSH data available.


Related in: MedlinePlus