Active thermal feedback for massive cryogenic detectors

Meier, Oliver; Bravin, M.; Bruckmayer, M.; Stéfano, P. Di; Frank, T.; Loidl, M.; Meunier, P.; Pröbst, F.; Sáfrán, György; Seidel, W.; Sergeyev, Ivan V.; Sisti, M.; Stodolsky, L.; Uchaikin, S.; Zerle, L.

doi:10.1016/s0168-9002(99)01390-x

Cited by 9 publications

(11 citation statements)

References 3 publications

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“…An upper limit on this effect has been estimated using the film pulser in the case of the small detectors, and different operating points on all detectors. The effect was also reduced in the case of the large detector through the active thermal feedback [16] for some runs.…”

Section: Light Absorption Propertiesmentioning

confidence: 95%

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Textured silicon calorimetric light detector

Stefano

Frank

Angloher

et al. 2003

Journal of Applied Physics

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We apply the standard photovoltaic technique of texturing to reduce the reflectivity of silicon cryogenic calorimetric light detectors. In the case of photons with random incidence angles, absorption is compatible with the increase in surface area. For the geometrically thin detectors studied, energy resolution from athermal phonons, dominated by position dependence, is proportional to the surface-to-volume ratio. With the CaWO 4 scintillating crystal used as light source, the time constants of the calorimeter should be adapted to the relatively slow light-emission times. PACS numbers: 29.40, 84.60.Jt, 85.25.Oj, 95.55.Vj, 95.35.+d *

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Section: Light Absorption Propertiesmentioning

confidence: 95%

“…Pile-up, a nuisance in itself, can also degrade the temperature stabilization of transition-edge sensors. The large device was therefore operated with active thermal feedback [16] to shorten pulse times in some runs.…”

Section: Preliminary Tests and Setupmentioning

confidence: 99%

Textured silicon calorimetric light detector

Stefano

Frank

Angloher

et al. 2003

Journal of Applied Physics

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“…In Fig. 2, the model predictions for plate and cube detectors are shown as a function of detector mass, fitted to the thresholds [17,18,[22][23][24][25]. Red stars indicate the predicted performance of the detector components studied in this work.…”

Section: Performance Model For Calorimetersmentioning

confidence: 99%

“…Red stars indicate the predicted performance of the detector components studied in this work. The prediction bands for the new Si calorimeters are not shown for clarity achieved in CRESST-II CaWO 4 detectors (green triangles) with a mass of ∼300 g [18,22] and a sapphire cube of 262 g used in CRESST-I (blue cross) [23,24]. The model successfully predicts the energy threshold of CRESST-II light detectors studied in [17] (purple dots), which are sapphire discs with a mass of 2.2 g (diameter 40 mm, thickness 0.45 mm) and also the thresholds of ∼24 g CRESST-III detectors as expected from a prototype measurement (green error bar) [25].…”

Section: Performance Model For Calorimetersmentioning

confidence: 99%

The $$\nu $$ ν -cleus experiment: a gram-scale fiducial-volume cryogenic detector for the first detection of coherent neutrino–nucleus scattering

et al. 2017

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We discuss a small-scale experiment, called ν-cleus, for the first detection of coherent neutrino-nucleus scattering by probing nuclear-recoil energies down to the 10 eV regime. The detector consists of low-threshold CaWO 4 and Al 2 O 3 calorimeter arrays with a total mass of about 10 g and several cryogenic veto detectors operated at millikelvin temperatures. Realizing a fiducial volume and a multi-element target, the detector enables active discrimination of γ , neutron and surface backgrounds. A first prototype Al 2 O 3 device, operated above ground in a setup without shielding, has achieved an energy threshold of ∼20 eV and further improvements are in reach. A sensitivity study for the detection of coherent neutrino scattering at nuclear power plants shows a unique discovery potential (5σ ) within a measuring time of 2 weeks. Furthermore, a site at a thermal research reactor and the use of a radioactive neutrino source are investigated. With this technology, real-time monitoring of nuclear power plants is feasible.

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“…To achieve this very low T c , an α-phase W film was electron beam evaporated on heated sapphire crystals in an ultrahigh vacuum environment [141]. For stable operation of the detector at the T c of the W film of ∼ 15 mK, an active thermal feedback scheme in which the base temperature of the cryostat was maintained at ∼ 6.5 mK and an additional heater integrated into the detector maintained the detector temperature at the T c [197] was adopted, as shown in Figure 17. The heater also served as a means to calibrate the detector.…”

Section: Cresstmentioning

confidence: 99%

Superconducting detectors for rare event searches in experimental astroparticle physics

Kim,

Lee,

Yang

2021

Preprint

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Superconducting detectors have become an important tool in experimental astroparticle physics, which seeks to provide a fundamental understanding of the Universe. In particular, such detectors have demonstrated excellent potential in two challenging research areas involving rare event search experiments, namely, the direct detection of dark matter and the search for neutrinoless double beta decay. Here, we review the superconducting detectors that have been and are planned to be used in these two categories of experiments. We first provide brief histories of the two research areas and outline their significance and challenges in astroparticle physics. Then, we present an extensive overview of various types of superconducting detectors with a focus on sensor technologies and detector physics, which are based on calorimetric measurements and heat flow in the detector components. Finally, we introduce leading experiments and discuss their future prospects for the detection of dark matter and the search for neutrinoless double beta decay employing superconducting detectors.

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Active thermal feedback for massive cryogenic detectors

Cited by 9 publications

References 3 publications

Textured silicon calorimetric light detector

Textured silicon calorimetric light detector

The $$\nu $$ ν -cleus experiment: a gram-scale fiducial-volume cryogenic detector for the first detection of coherent neutrino–nucleus scattering

Superconducting detectors for rare event searches in experimental astroparticle physics

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