We present the application of a simplified thermal model for the description of the response function of low-temperature calorimeters consisting of TeO 2 crystals read-out by NTD thermistors operated at temperatures T∼ 10 mK. Relying on both the analysis of the NTD load curves (from which we measured the main thermal conductances of the system) (Biassoni et al. in J Low Temp Phys 206:80–96, 2022) and on the analysis of the shape of thermal pulses acquired at different temperatures, we identified and quantified the physical parameters that determine the characteristic time constants of the pulses. In particular, we identified three different contributions to the heat capacity of the detector: the crystal phonon system (scaling as T3), the NTD electron system (scaling as T) and a term related to the metalization process of the NTD electrodes (scaling as T- 2).

Biassoni, M., Brofferio, C., Carniti, P., Faverzani, M., Ferri, E., Ghislandi, S., et al. (2022). Pulse Shape Analysis in Low-temperature Calorimeters Read-Out by NTD Thermistors. JOURNAL OF LOW TEMPERATURE PHYSICS [10.1007/s10909-022-02822-9].

Pulse Shape Analysis in Low-temperature Calorimeters Read-Out by NTD Thermistors

Biassoni, M.;Brofferio, C.;Carniti, P.;Faverzani, M.;Giachero, A.;Gotti, C.;Nutini, I.;Pessina, G.;
2022

Abstract

We present the application of a simplified thermal model for the description of the response function of low-temperature calorimeters consisting of TeO 2 crystals read-out by NTD thermistors operated at temperatures T∼ 10 mK. Relying on both the analysis of the NTD load curves (from which we measured the main thermal conductances of the system) (Biassoni et al. in J Low Temp Phys 206:80–96, 2022) and on the analysis of the shape of thermal pulses acquired at different temperatures, we identified and quantified the physical parameters that determine the characteristic time constants of the pulses. In particular, we identified three different contributions to the heat capacity of the detector: the crystal phonon system (scaling as T3), the NTD electron system (scaling as T) and a term related to the metalization process of the NTD electrodes (scaling as T- 2).
No
Articolo in rivista - Articolo scientifico
Scientifica
Bolometers; Low-temperature calorimeters; Neutron Trasmutation Doped (NTD) thermistors; Pulse shape; Thermal capacitance;
English
Biassoni, M., Brofferio, C., Carniti, P., Faverzani, M., Ferri, E., Ghislandi, S., et al. (2022). Pulse Shape Analysis in Low-temperature Calorimeters Read-Out by NTD Thermistors. JOURNAL OF LOW TEMPERATURE PHYSICS [10.1007/s10909-022-02822-9].
Biassoni, M; Brofferio, C; Carniti, P; Faverzani, M; Ferri, E; Ghislandi, S; Giachero, A; Gotti, C; Nutini, I; Pessina, G; Quitadamo, S
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Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/10281/391529
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