Results from a prototype TES detector for the Ricochet experiment

• DOI: 10.1016/j.nima.2023.168765
• Publication Date: 2023-10-07T07:11:11Z
• Authors: C. Augier; G. Baulieu; V. Belov; L. Bergé; J. Billard; G. Bres; J-.L. Bret; A. Broniatowski; M. Calvo; A. Cazes; D. Chaize; M. Chala; C.L. Chang; M. Chapellier; L. Chaplinsky; G. Chemin; R. Chen; J. Colas; E. Cudmore; M. De Jesus; P. de Marcillac; L. Dumoulin; O. Exshaw; S. Ferriol; E. Figueroa-Felic...; J.-B. Filippini; J.A. Formaggio; S. Fuard; K. Gannon; J. Gascon; A. Giuliani; J. Goupy; C. Goy; C. Guerin; E. Guy; P. Harrington; S.A. Hertel; M. Heusch; Z. Hong; J.-C. Ianigro; Y. Jin; A. Juillard; D. Karaivanov; S. Kazarcev; J. Lamblin; H. Lattaud; M. Li; M. Lisovenko; A. Lubashevskiy; S. Marnieros; N. Martini; D.W. Mayer; J. Minet; A. Monfardini; F. Mounier; V. Novati; E. Olivieri; C. Oriol; L. Ovalle Mateo; K.J. Palladino; P.K. Patel; E. Perbet; H.D. Pinckney; D.V. Poda; D. Ponomarev; F. Rarbi; J.-S. Real; T. Redon; F.C. Reyes; J.-S. Ricol; A. Robert; S. Rozov; I. Rozova; T. Salagnac; B. Schmidt; S. Scorza; Ye. Shevchik; T. Soldner; J. Stachurska; A. Stutz; L. Vagneron; W. Van De Pontseele; C. Veihmeyer; F. Vezzu; G. Wang; L. Winslow; E. Yakushev; V.G. Yefremenko; J. Zhang; D. Zinatulina
• Keywords: Physics - Instrumentation and Detectors; solid-state counter; energy resolution; silicon; FOS: Physical sciences; Instrumentation and Detectors (physics.ins-det); 7. Clean energy; neutrino: nuclear reactor; 530; neutrino: flux; neutrino nucleus: coherent interaction; cryogenics; [PHYS.PHYS.PHYS-INS-DET]Physics [physics]/Physics [physics]/Instrumentation and Detectors [physics.ins-det]; detector: design; performance

Coherent elastic neutrino-nucleus scattering (CE$ν$NS) offers valuable sensitivity to physics beyond the Standard Model. The Ricochet experiment will use cryogenic solid-state detectors to perform a precision measurement of the CE$ν$NS spectrum induced by the high neutrino flux from the Institut Laue-Langevin nuclear reactor. The experiment will employ an array of detectors, each with a mass of $\sim$30 g and a targeted energy threshold of 50 eV. Nine of these detectors (the "Q-Array") will be based on a novel Transition-Edge Sensor (TES) readout style, in which the TES devices are thermally coupled to the absorber using a gold wire bond. We present initial characterization of a Q-Array-style detector using a 1 gram silicon absorber, obtaining a baseline root-mean-square resolution of less than 40 eV.<br/>18 pages, 8 figures<br/>