6533b7d3fe1ef96bd126005b
RESEARCH PRODUCT
Measurement of radon-induced backgrounds in the NEXT double beta decay experiment
G. Martínez-lemaJavier PérezR. GuenetteJ.f. ToledoF. MonrabalF. MonrabalM. DiesburgS. CárcelP. LebrunJ. EscadaA. ParaM. SorelA.l. FerreiraA. MartínezM. Nebot-guinotC.d.r. AzevedoL. LabargaF. BallesterPaola FerrarioPaola FerrarioM. LosadaSandra K. JohnstonJ.m. Benlloch-rodríguezN. López-marchJ. TorrentF.p. SantosC. Romo-luqueJ.m.f. Dos SantosK. BaileyS. RiordanF.i.g.m. BorgesR.d.p. ManoA.d. McdonaldD.r. NygrenJ.a. Hernando MorataJ.t. WhiteVicente HerreroA. GoldschmidtJ. HauptmanA. BotasA. LaingJ. GenerowiczF. PsihasC. SofkaC. SofkaJ. Martíın-alboC.a.n. CondeL. RipollC. AdamsB. J. P. JonesA. SimónA. SimónJ.f.c.a. VelosoE.d.c. FreitasF.j. MoraA.f.m. FernandesM. MustiVíctor H. AlvarezT.m. StieglerD. González-díazJ. S. DíazP. NovellaC.m.b. MonteiroLior AraziRoberto GutiérrezJ.j. Gómez-cadenasJ.j. Gómez-cadenasJavier RodríguezL.m.p. FernandesC.a.o. HenriquesR. FelkaiK. HafidiJose RepondL. RogersJ.v. CarriónM. QuerolJ. Muñoz VidalS. CebriánR. C. WebbM. KekicN. YahlaliRomain EsteveB. PalmeiroA.i. HernandezJ. RennerG. Zuzelsubject
Nuclear and High Energy PhysicsPhysics - Instrumentation and DetectorsNuclear physicsFOS: Physical scienceschemistry.chemical_elementRadonElectron01 natural sciencesAtomicMathematical SciencesHigh Energy Physics - Experimentlaw.inventionIonNuclear physicsHigh Energy Physics - Experiment (hep-ex)XenonParticle and Plasma PhysicslawDouble beta decay0103 physical sciencesDark Matter and Double Beta Decay (experiments)lcsh:Nuclear and particle physics. Atomic energy. RadioactivityNuclearNuclear Experiment (nucl-ex)010306 general physicsNuclear ExperimentMathematical PhysicsPhysicsQuantum PhysicsTime projection chamber010308 nuclear & particles physicsDetectorMolecularInstrumentation and Detectors (physics.ins-det)Double beta decayNuclear & Particles PhysicsCathodeDoble desintegració betachemistryPhysical Scienceslcsh:QC770-798Física nucleardescription
The measurement of the internal $^{222}$Rn activity in the NEXT-White detector during the so-called Run-II period with $^{136}$Xe-depleted xenon is discussed in detail, together with its implications for double beta decay searches in NEXT. The activity is measured through the alpha production rate induced in the fiducial volume by $^{222}$Rn and its alpha-emitting progeny. The specific activity is measured to be $(38.1\pm 2.2~\mathrm{(stat.)}\pm 5.9~\mathrm{(syst.)})$~mBq/m$^3$. Radon-induced electrons have also been characterized from the decay of the $^{214}$Bi daughter ions plating out on the cathode of the time projection chamber. From our studies, we conclude that radon-induced backgrounds are sufficiently low to enable a successful NEXT-100 physics program, as the projected rate contribution should not exceed 0.1~counts/yr in the neutrinoless double beta decay sample.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2018-10-01 |