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cupid_pub:the_cupid_experiment [2021/06/01 08:22] dilorenzo1 [The 0νββ decay signature] |
cupid_pub:the_cupid_experiment [2021/06/04 08:31] (current) benato [The Experiment] |
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Thus, CUPID will not only change the crystal, but also the candidate isotope. The reason for this choice is twofold: | Thus, CUPID will not only change the crystal, but also the candidate isotope. The reason for this choice is twofold: | ||
on the one hand, Li<sub>2 </sub>MoO<sub>4</sub> is a scintillating material with a particle-dependent light yield, | on the one hand, Li<sub>2 </sub>MoO<sub>4</sub> is a scintillating material with a particle-dependent light yield, | ||
- | on the other hand the candidate isotpe <sup>100</sup>Mo has a Q-value of 3034 keV | + | on the other hand the candidate isotope <sup>100</sup>Mo has a Q-value of 3034 keV |
(compared to 2527 keV of <sup>130</sup>Te), which lies above most of the γ background from environmental radioactivity. Special attention is paid to the minimization of the radioactive contamination levels of all employed materials. Using the information from the predecessor experiments CUORE, [[https://cupid-0.lngs.infn.it/|CUPID-0]], and [[https://cupid-mo.mit.edu|CUPID-Mo]], the projected background at Q<sub>ββ</sub> is expected to be at the level of 10<sup>-4</sup> counts/keV/kg/yr. | (compared to 2527 keV of <sup>130</sup>Te), which lies above most of the γ background from environmental radioactivity. Special attention is paid to the minimization of the radioactive contamination levels of all employed materials. Using the information from the predecessor experiments CUORE, [[https://cupid-0.lngs.infn.it/|CUPID-0]], and [[https://cupid-mo.mit.edu|CUPID-Mo]], the projected background at Q<sub>ββ</sub> is expected to be at the level of 10<sup>-4</sup> counts/keV/kg/yr. | ||
- | + | CUPID-Mo has robustly demonstrated that Li<sub>2</sub>MoO<sub>4</sub> scintillating bolometers | |
+ | meet the requirement for CUPID. CUPID-Mo was an array of 20 elements that took data until 2020 in the Modane underground laboratory in France, as a follow-up of the LUMINEU project. | ||
+ | It has shown the maturity reached by the proposed CUPID technology and the high standard of the Li<sub>2</sub>MoO<sub>4</sub> detectors in terms of energy resolution, α/β rejection capabilities, internal radiopurity, and overall reproducibility of the results. | ||
Last modified: le 2021/06/01 08:22