First measurements of remoTES cryogenic calorimeters: Easy-to-fabricate particle detectors for a wide choice of target materials

Angloher, G.; Bharadwaj, Mukund Raghunath; Dafinei, I.; Einfalt, N. Di Marco L.; Ferroni, F.; Fichtinger, S.; Filipponi, A.; Frank, T.; Friedl, M.; Fuss, A.; Ge, Z. W.; Heikinheimo, Matti; Huitu, Katri; Kellermann, Moritz; Maji, Rupali; Mancuso, M.; Pagnanini, L.; Petricca, F.; Pirro, S.; Proebst, F.; Profeta, G.; Puiu, A.; Reindl, F.; Schäeffner, K.; Schieck, J.; Schmiedmayer, D.; Schwertner, C.; Stahlberg, M.; Stendahl, A.; Wagner, F.; Yue, Shijing; Zema, V.; Zhu, Yuqing; Bento, A.; Canonica, L.; Garai, A.

doi:10.1016/j.nima.2022.167532

Cited by 16 publications

(17 citation statements)

References 20 publications

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“…The first results of this coupling scheme for detectors with Si and TeO 2 absorbers were described in Ref. [6]. We demonstrate in this work that the same principle is applicable to NaI crystals, and present results from the first NaI-remoTES detector.…”

Section: Introductionmentioning

confidence: 57%

“…The detector module consists of a remoTES phonon detector (cf. [6]) shown in Fig. 1 and 2a and a silicon-on-sapphire (SOS) wafer as light detector (cf.…”

Section: Detector Modulementioning

confidence: 99%

“…A picture of the light de- The TES is deposited on a wafer, which is separated from the absorber crystal. The coupling between the absorber and the TES consists of an Au-pad glued on the absorber surface and connected to the TES by two Au-wire bonds [6].…”

Section: Detector Modulementioning

confidence: 99%

“…NaI poses certain difficulties when operated in this calorimetric approach, such as hygroscopicity and a low melting point [5]. A solution to this problem is the re-moTES design, where the TES sensor is deposited on a separate wafer, which is then coupled to the absorber crystal using an Au-wire and pad [6]. The first results of this coupling scheme for detectors with Si and TeO 2 absorbers were described in Ref.…”

Section: Introductionmentioning

confidence: 99%

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Simulation-based design study for the passive shielding of the COSINUS dark matter experiment

et al. 2022

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The COSINUS (Cryogenic Observatory for SIgnatures seen in Next-generation Underground Searches) experiment aims at the detection of dark matter-induced recoils in sodium iodide (NaI) crystals operated as scintillating cryogenic calorimeters. The detection of both scintillation light and phonons allows performing an event-by-event signal to background discrimination, thus enhancing the sensitivity of the experiment. The choice of using NaI crystals is motivated by the goal of probing the long-standing DAMA/LIBRA results using the same target material. The construction of the experimental facility is foreseen to start by 2021 at the INFN Gran Sasso National Laboratory (LNGS) in Italy. It consists of a cryostat housing the target crystals shielded from the external radioactivity by a water tank acting, at the same time, as an active veto against cosmic ray-induced events. Taking into account both environmental radioactivity and intrinsic contamination of materials used for cryostat, shielding and infrastructure, we performed a careful background budget estimation. The goal is to evaluate the number of events that could mimic or interfere with signal detection while optimising the geometry of the experimental setup. In this paper we present the results of the detailed Monte Carlo simulations we performed, together with the final design of the setup that minimises the residual amount of background particles reaching the detector volume.

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Section: Introductionmentioning

confidence: 57%

“…The detector module consists of a remoTES phonon detector (cf. [6]) shown in Fig. 1 and 2a and a silicon-on-sapphire (SOS) wafer as light detector (cf.…”

Section: Detector Modulementioning

confidence: 99%

Section: Detector Modulementioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Simulation-based design study for the passive shielding of the COSINUS dark matter experiment

et al. 2022

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“…An alternative novel detector is proposed as the Q-Array, which utilizes a readout based on Transition-Edge Sensors (TESs) [9] and radio frequency (RF) Superconducting Quantum Interference Devices (SQUIDs) [10]. The modular design of the Q-Array, which separates the TES-based sensor chip from the absorber crystal [11,12,13], allows the sensors to be mass-produced and fabricated separately from the particle-sensing absorbers. This technology has the potential of scaling the experiment up to O(10) kg and beyond.…”

Section: Introductionmentioning

confidence: 99%

Fast neutron background characterization of the future Ricochet experiment at the ILL research nuclear reactor

Augier

Baulieu

Belov³

et al. 2023

Eur. Phys. J. C

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The future Ricochet experiment aims at searching for new physics in the electroweak sector by providing a high precision measurement of the Coherent Elastic Neutrino-Nucleus Scattering (CENNS) process down to the sub-100 eV nuclear recoil energy range. The experiment will deploy a kg-scale low-energy-threshold detector array combining Ge and Zn target crystals 8.8 m away from the 58 MW research nuclear reactor core of the Institut Laue Langevin (ILL) in Grenoble, France. Currently, the Ricochet Collaboration is characterizing the backgrounds at its future experimental site in order to optimize the experiment’s shielding design. The most threatening background component, which cannot be actively rejected by particle identification, consists of keV-scale neutron-induced nuclear recoils. These initial fast neutrons are generated by the reactor core and surrounding experiments (reactogenics), and by the cosmic rays producing primary neutrons and muon-induced neutrons in the surrounding materials. In this paper, we present the Ricochet neutron background characterization using $$^3$$ 3 He proportional counters which exhibit a high sensitivity to thermal, epithermal and fast neutrons. We compare these measurements to the Ricochet Geant4 simulations to validate our reactogenic and cosmogenic neutron background estimations. Eventually, we present our estimated neutron background for the future Ricochet experiment and the resulting CENNS detection significance. Our results show that depending on the effectiveness of the muon veto, we expect a total nuclear recoil background rate between 44 ± 3 and 9 ± 2 events/day/kg in the CENNS region of interest, i.e. between 50 eV and 1 keV. We therefore found that the Ricochet experiment should reach a statistical significance of 4.6 to 13.6 $$\sigma $$ σ for the detection of CENNS after one reactor cycle, when only the limiting neutron background is considered.

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Properties of Low TC AlMn TES

Wang,

Bratrud,

Chang

et al. 2024

J Low Temp Phys

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First measurements of remoTES cryogenic calorimeters: Easy-to-fabricate particle detectors for a wide choice of target materials

Cited by 16 publications

References 20 publications

Simulation-based design study for the passive shielding of the COSINUS dark matter experiment

Simulation-based design study for the passive shielding of the COSINUS dark matter experiment

Fast neutron background characterization of the future Ricochet experiment at the ILL research nuclear reactor

Properties of Low TC AlMn TES

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