학술논문
An Energy-dependent Electro-thermal Response Model of CUORE Cryogenic Calorimeter
Document Type
Working Paper
Author
CUORE Collaboration; Adams, D. Q.; Alduino, C.; Alfonso, K.; Avignone III, F. T.; 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, X. G.; Capelli, S.; Capelli, C.; Cappelli, L.; Cardani, L.; Carniti, P.; Casali, N.; Celi, E.; Chiesa, D.; Clemenza, M.; Copello, S.; Cremonesi, O.; Creswick, R. J.; D'Addabbo, A.; Dafinei, I.; Del Corso, F.; Dell'Oro, S.; Di Domizio, S.; Di Lorenzo, S.; Dompè, V.; Fang, D. Q.; Fantini, G.; Faverzani, M.; Ferri, E.; Ferroni, F.; Fiorini, E.; Franceschi, M. A.; Freedman, S. J.; Fu, S. H.; Fujikawa, B. K.; Ghislandi, S.; Giachero, A.; Gianvecchio, A.; Gironi, L.; Giuliani, A.; Gorla, P.; Gotti, C.; Gutierrez, T. D.; Han, K.; Hansen, E. V.; Heeger, K. M.; Huang, R. G.; Huang, H. Z.; Johnston, J.; Keppel, G.; Kolomensky, Yu. G.; Kowalski, R.; Li, M.; Liu, R.; Ma, L.; Ma, Y. G.; Marini, L.; Maruyama, R. H.; Mayer, D.; Mei, Y.; Morganti, S.; Napolitano, T.; Nastasi, M.; Nikkel, J.; Nones, C.; Norman, E. B.; Nucciotti, A.; Nutini, I.; O'Donnell, T.; Olmi, M.; Ouellet, J. L.; Pagan, S.; Pagliarone, C. E.; 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.; Schmidt, B.; Scielzo, N. D.; Sharma, V.; Singh, V.; Sisti, M.; Speller, D.; Surukuchi, P. T.; Taffarello, L.; Terranova, F.; Tomei, C.; Vetter, K. J.; Vignati, M.; Wagaarachchi, S. L.; Wang, B. S.; Welliver, B.; Wilson, J.; Wilson, K.; Winslow, L. A.; Zimmermann, S.; Zucchelli, S.
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Subject
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Abstract
The Cryogenic Underground Observatory for Rare Events (CUORE) is the most sensitive experiment searching for neutrinoless double-beta decay ($0\nu\beta\beta$) in $^{130}\text{Te}$. CUORE uses a cryogenic array of 988 TeO$_2$ calorimeters operated at $\sim$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.
Comment: 34 pages, 14 figures, 6 tables
Comment: 34 pages, 14 figures, 6 tables