The temperature stabilization system of CUORICINO: an array of macro bolometers

Arnaboldi, C.; Bucci, C.; Capelli, S.; Gorla, P.; Guardincerri, E.; Nucciotti, A.; Pessina, G.; Pirro, S.; Sisti, M.

doi:10.1109/tns.2005.856758

Cited by 17 publications

(13 citation statements)

References 22 publications

(27 reference statements)

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“…The temperature stabilization of the tower is made by means of a thermistor and a heater glued to it. An electronic channel is used for a feed back system [56]. The entire setup is shielded with two layers of lead of 10 cm minimum thickness each.…”

Section: The Cuoricino Detectormentioning

confidence: 99%

Results from a search for the0 νββ-decay ofTe130

Arnaboldi¹,

Artusa²,

Avignone³

et al. 2008

Phys. Rev. C

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221

163

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Corresponding author exist scenarios in which the effective Majorana mass of the electron neutrino could be larger than 0.05 eV. Recent developments in detector technology make the observation of 0 νββ decay at this scale now feasible. For recent comprehensive experimental and theoretical reviews see [4][5][6]. Optimism that a direct observation of 0 νββ decay is possible was greatly enhanced by the observation and measurement of the oscillations of atmospheric neutrinos [7], the confirmation by SuperKamiokande [8] of the deficit of 8 B neutrinos observed by the chlorine experiment [9], the observed deficit of p-p neutrinos by SAGE [10] and GALEX [11], and the results of the SNO experiment [12] that clearly showed that the total flux of 8 B neutrinos from the sun predicted by Bahcall and his coworkers [13] is correct. Finally, the data from the KamLAND

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Section: The Cuoricino Detectormentioning

confidence: 99%

Results from a search for the0 νββ-decay ofTe130

Arnaboldi¹,

Artusa²,

Avignone³

et al. 2008

Phys. Rev. C

Self Cite

221

163

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“…3 at ∼400 Hz arises from a resonance that enhances the thermal noise generated within the thermistor. This occurs when the impedance of the parasitic capacitance of the link becomes smaller than that of the thermistor, which is a fed-backed device [44]. The bump is found at the border of the bandwidth of the signal and is rejected from the optimum filter algorithm.…”

Section: Bld Performancementioning

confidence: 99%

Cryogenic light detectors with enhanced performance for rare event physics

Barucci

Beeman

Caracciolo

et al. 2019

Nuclear Instruments and Methods in Physics Research Section A:

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We have developed and tested a new way of coupling bolometric light detectors to scintillating crystal bolometers based upon simply resting the light detector on the crystal surface, held in position only by gravity. This straightforward mounting results in three important improvements: (1) it decreases the amount of non-active materials needed to assemble the detector, (2) it substantially increases the light collection efficiency by minimizing the light losses induced by the mounting structure, and (3) it enhances the thermal signal induced in the light detector thanks to the extremely weak thermal link to the thermal bath.We tested this new technique with a 16 cm 2 Ge light detector with thermistor readout sitting on the surface of a large TeO 2 bolometer. The light collection efficiency was increased by greater than 50% compared to previously tested alternative mountings. We obtained a baseline energy resolution on the light detector of 20 eV RMS that, together with increased light collection, enabled us to obtain the best α vs β/γ discrimination ever obtained with massive TeO 2 crystals. At the same time we achieved rise and decay times of 0.8 and 1.6 ms, respectively. This superb performance meets all of the requirements for the CUPID (CUORE Upgrade with Particle IDentification) experiment, which is a 1-ton scintillating bolometer follow up to CUORE. tons, producing heat (phonons) that is measured by a suitable thermometer. The main difference among the various Bolometric Light Detector (BLD) instruments currently in use is the choice of the thermometer element, e.g. Transition Edge Sensors (TES) [12], Neutron Transmutation Doped (NTD) thermistors [13] or Micro Magnetic Calorimeters (MMC) [14].The work presented here was performed within the CU-PID framework [15,16], the future follow up of CUORE [17] that represents the largest world-wide bolometric experiment to date. The aim was to develop NTD-based BLDs with improved performance in terms of sensitivity, time response and simplified packaging for large arrays. Using the tiny Cherenkov light emission of TeO 2 [18,19] to decrease by two order of magnitude the α-induced background, requires a BLD with a S/N ratio of the order of ∼5 [16]: this corresponds to a RMS baseline resolution of the BLD of the order of ∼20 eV being the Cherenkov light signal of the order of 100 eV. Actually one can work towards the optimization of the light collection [20] and/or towards the energy resolution of the BLD or -as we made in this work-both. Additionally, in case of 100 Mo-based compounds, beside the same need to suppress the surface α-induced background, a fast time response of the BLD (≤ 1 ms) is mandatory to suppress the background induced the pile-up of the 2ν DBD [21]: also in this case the S/N ratio will play an important

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“…Significant improvements interested the whole data production chain, with the implementation of a PID controller for the temperature stabilization [89], a new frontend electronics [90] and a software trigger for the data acquisition [91]. 12 Cuoricino [92] took the place of MiDBD in the Hall A cryostat.…”

Section: Cuoricinomentioning

confidence: 99%

Contributed Review: The saga of neutrinoless double beta decay search with TeO2 thermal detectors

Brofferio

Dell’Oro

2018

Review of Scientific Instruments

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Neutrinoless double beta decay (0νββ) is a direct probe of physics beyond the Standard Model. Its discovery would demonstrate that the lepton number is not a symmetry of nature and would provide us with unique information on the nature and mass of the neutrinos. Among the experimental techniques employed in the investigation of this rare process, thermal detectors fulfill the requirements for a powerful search, showing an excellent energy resolution and the possibility of scaling to very large masses. In this work, we review the long chain of bolometric experiments based on TeO 2 crystals that were and continue to be carried out at the Laboratori Nazionali del Gran Sasso (Italy), searching for the 0νββ of 130 Te. We illustrate the progress and improvements achieved in almost thirty years of measurements and compare the various performance and results. We describe the several steps that led to the CUORE detector, the latest of this series and presently in data taking, and we highlight the challenges that a next bolometric experiment will face in order to further improve the sensitivity, especially concerning the background abatement. Finally, we emphasize the advantages of 130 Te in the search for 0νββ with a further future experiment.Published on: Rev. Sci. Instrum. 89, 121502 (2018) CONTENTS

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The temperature stabilization system of CUORICINO: an array of macro bolometers

Cited by 17 publications

References 22 publications

Results from a search for the0 νββ-decay ofTe130

Results from a search for the0 νββ-decay ofTe130

Cryogenic light detectors with enhanced performance for rare event physics

Contributed Review: The saga of neutrinoless double beta decay search with TeO2 thermal detectors

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