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Cd. S 2017: embargo fino a TAUP 2017 ma le cose raggiunte si potevano mostrare a questo livello Criogenia OK 7 m. K!!!!
e adesso 5 anni di data taking….
Richieste economiche Cuore-Pd 2019 Anagrafica: Ric. 0, 2/1 FTE: ML(non firmatario) Tecn. 0. 55/1 FTE: LT si torna in dotz! Capitolo Descrizione Parziali Richiesta Totale SJ Richieste 1. Turni presso LNGS 1 FTE/firmatario 4. 50 2. 1 meeting di collaborazione in Italia + riunioni PI 2. 00 3. 3 visite alla Leiden Cryogenics per DU Spare 4. 00 MISSIONI 4. 1 meeting di collaborazione all'estero (USA) 2. 50 2. 00 5. conferenze e/o collaborazioni SJ 15. 00 CONSUMO 1. Termometria, link termici e attuatori piezo per test in hall. C Non si richiede attività di servizio 2. 00 Totale richiesta 17 k€ Così sarebbe finita, ma lasciatemi fare un breve consuntivo dell’attività AB 0. 00
The goal: • Make the Optimum Trigger (OT) work for the online data-taking of CUORE: Ø the OT algorithm is demanding in terms of computing resources, therefore it needed different improvements and tests (both offline and online) to meet the goal;
Analysis of data acquired during calibration with both OT and DT Are we able to get the same events tagged by DT at high energy? • from the comparison of the DT and OT energy spectrum, we can conclude that OT is performing very well; Derivative 239 ke. V 338 ke. V 583 ke. V 911 ke. V 969 ke. V 2615 ke. V OT Single trigger required • Since OT has lower thresholds, we recognize more pile-up, so there are less events in energy spectrum from OT 6
We are able to reconstruct the characteristic Te X-rays • Fit with an eight Gaussian line shape plus linear background: Ø Relative intensities and positions of Ka 2, 3 fixed w. r. t. Ka 1; Ø Relative intensities and positions of Kb 2, 3, 4, 5 fixed w. r. t. Kb 1; Ø Same width for all gaussians; 7
• Preliminary OT energy thresholds in CUORE: Ø energy threshold defined as the energy at which events are identified with 90% of efficiency; OT DT 8
Conclusions: • OT is now implemented in CUORE for the online data-taking since May 2018; • The trigger allows to lower the energy thresholds: Ø analyses at low energy can be performed (Dark Matter, Axions, Supernova neutrino, low energy radioactivity); Ø better rejection of background events in standard analyses like 0 v. BB;