| Autor: |
Adams, DQ, Alduino, C, Alfonso, K, Avignone, FT, Azzolini, O, Bari, G, Bellini, F, Benato, G, Beretta, M, Biassoni, M, Branca, A, Brofferio, C, Bucci, C, Camilleri, J, Caminata, A, Campani, A, Canonica, L, Cao, XG, Capelli, S, Capelli, C, Cappelli, L, Cardani, L, Carniti, P, Casali, N, Celi, E, Chiesa, D, Clemenza, M, Copello, S, Cremonesi, O, Creswick, RJ, D'Addabbo, A, Dafinei, I, Del Corso, F, Dell'Oro, S, Di Domizio, S, Di Lorenzo, S, Dompè, V, Fang, DQ, Fantini, G, Faverzani, M, Ferri, E, Ferroni, F, Fiorini, E, Franceschi, MA, Freedman, SJ, Fu, SH, Fujikawa, BK, Ghislandi, S, Giachero, A, Gianvecchio, A, Gironi, L, Giuliani, A, Gorla, P, Gotti, C, Gutierrez, TD, Han, K, Hansen, EV, Heeger, KM, Huang, RG, Huang, HZ, Johnston, J, Keppel, G, Kolomensky, Yu G, Kowalski, R, Li, M, Liu, R, Ma, L, Ma, YG, Marini, L, Maruyama, RH, Mayer, D, Mei, Y, Morganti, S, Napolitano, T, Nastasi, M, Nikkel, J, Nones, C, Norman, EB, Nucciotti, A, Nutini, I, O'Donnell, T, Olmi, M, Ouellet, JL, Pagan, S, Pagliarone, CE, Pagnanini, L, Pallavicini, M, Pattavina, L, Pavan, M, Pessina, G, Pettinacci, V, Pira, C, Pirro, S, Pozzi, S, Previtali, E, Puiu, A, Quitadamo, S, Ressa, A, Rosenfeld, C, Sangiorgio, S |
| Rok vydání: |
2022 |
| Předmět: |
|
| Zdroj: |
Journal of Instrumentation, vol 17, iss 11 |
| Popis: |
The Cryogenic Underground Observatory for Rare Events (CUORE) is the most sensitive experiment searching for neutrinoless double-beta decay (0νββ) in 130Te. CUORE uses a cryogenic array of 988 TeO2 calorimeters operated at ∼10 mK with a total mass of 741 kg. To further increase the sensitivity, the detector response must be well understood. Here, we present a non-linear thermal model for the CUORE experiment on a detector-by-detector basis. We have examined both equilibrium and dynamic electro-thermal models of detectors by numerically fitting non-linear differential equations to the detector data of a subset of CUORE channels which are well characterized and representative of all channels. We demonstrate that the hot-electron effect and electric-field dependence of resistance in NTD-Ge thermistors alone are inadequate to describe our detectors' energy-dependent pulse shapes. We introduce an empirical second-order correction factor in the exponential temperature dependence of the thermistor, which produces excellent agreement with energy-dependent pulse shape data up to 6 MeV. We also present a noise analysis using the fitted thermal parameters and show that the intrinsic thermal noise is negligible compared to the observed noise for our detectors. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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