5 documents found, page 1 of 1
222 Rn emanation measurements for the XENON1T experiment
Amaro, F. D.; Cardoso, J. M. R.; Lombardi, F; Lopes, J. A. M.; Santos, J. M. F. dos; Silva, M.The selection of low-radioactive construction materials is of utmost importance for the success of lowenergy rare event search experiments. Besides radioactive contaminants in the bulk, the emanation of radioactive radon atoms from material surfaces attains increasing relevance in the effort to further reduce the background of such experiments. In this work, we present the 222Rn emanation measurements performed...
Energy resolution and linearity of XENON1T in the MeV energy range
Cardoso, J. M. R.; Lombardi, F; Santos, J. M. F. dos; XENON CollaborationXenon dual-phase time projection chambers designed to search for weakly interacting massive particles have so far shown a relative energy resolutionwhich degrades with energy above ∼ 200 keV due to the saturation effects. This has limited their sensitivity in the search for rare events like the neutrinoless double-beta decay of 136Xe at its Q value, Qββ 2.46 MeV. For the XENON1T dual-phase time projection chamb...
Solar neutrino detection sensitivity in DARWIN via electron scattering
Aalbers, J.; Agostini, F.; Maouloud, S. E. M. Ahmed; Alfonsi, M.; Althueser, L.; Amaro, F. D.; Angevaare, J.; Antochi, V. C.; Antunovic, B.; Aprile, E.We detail the sensitivity of the proposed liquid xenon DARWIN observatory to solar neutrinos via elastic electron scattering. We find that DARWIN will have the potential to measure the fluxes of five solar neutrino components: pp, 7Be, 13N, 15O and pep. The precision of the 13N, 15O and pep components is hindered by the doublebeta decay of 136Xe and, thus, would benefit from a depleted target. A high-statistics...
Intrinsic backgrounds from Rn and Kr in the XENON100 experiment
Aprile, E.; Aalbers, J.; Agostini, F.; Alfonsi, M.; Amaro, Fernando D.; Anthony, M.; Arneodo, F.; Barrow, P.; Baudis, L.; Bauermeister, BIn this paper, we describe the XENON100 data analyses used to assess the target-intrinsic background sources radon (222Rn), thoron (220Rn) and krypton (85Kr). We detail the event selections of high-energy alpha particles and decay-specific delayed coincidences. We derive distributions of the individual radionuclides inside the detector and quantify their abundances during the main three science runs of the expe...
The XENON1T dark matter experiment
Aprile, E.; Aalbers, J.; Agostini, F.; Alfonsi, M.; Amaro, Fernando D.; Anthony, M.; Antunes, B. P.; Arneodo, F.; Balata, M.; Barrow, P.; Baudis, L.TheXENON1Texperiment at theLaboratoriNazionali del Gran Sasso (LNGS) is the first WIMP dark matter detector operating with a liquid xenon target mass above the ton-scale. Out of its 3.2 t liquid xenon inventory, 2.0 t constitute the active target of the dual-phase time projection chamber. The scintillation and ionization signals from particle interactions are detected with low-background photomultipliers. This ...