6533b860fe1ef96bd12c3a42

RESEARCH PRODUCT

Radiopurity control in the NEXT-100 double beta decay experiment: procedures and initial measurements

Adriane De Assis Lawisch RodriguezI. G. IrastorzaAntonio J. GilH. Natal Da LuzZ. TsamalaidzeJavier PérezD. González-díazJ. S. DíazL.m. MoutinhoJ. TorrentT. DafniJ. Martín-alboG. LuzónJ. M. HauptmanJ.j. Gómez-cadenasL. LabargaM. SorelA. MoiseenkoM. LosadaPetr EvtoukhovitchA.l. FerreiraF.p. SantosJ.m.f. Dos SantosM. EgorovRoberto PalmaN. YahlaliT. MillerJ.f.c.a. VelosoE.d.c. FreitasA. TomásAna MartínezH. GómezAlessandro BettiniL. RipollA. SimónT.h.v.t. DiasM A JineteVíctor H. AlvarezV. M. GehmanPaola FerrarioF.i.g.m. BorgesA. GoldschmidtD. Domínguez VázquezJ. F. CastelRoberto GutiérrezJ. A. Hernando MorataF. MonrabalJ. Muñoz VidalJosé VillarA. CerveraCarlos R. OliveiraF.j. IguazI. LiubarskyS. CebriánJ. T. WhiteC.a.n. CondeJ. RennerLuis M. SerraRomain EsteveJ.l. Pérez AparicioD. ShumanI. C. BandacR. C. WebbJorge Luis RodriguezC.m.b. MonteiroD. R. NygrenA. LaingA. Ortiz De SolórzanoF.j. MoraC. SofkaM. NebotA. MaríD. LorcaJ.f. ToledoS. CárcelL.m.p. FernandesD.c. HerreraJ.a.m. LopesL. SeguiGabriela Navarro

subject

MECANICA DE LOS MEDIOS CONTINUOS Y TEORIA DE ESTRUCTURASPhysics - Instrumentation and DetectorsGlow Discharge Mass SpectrometryPhysics::Instrumentation and Detectorschemistry.chemical_elementFOS: Physical sciencesGermanium01 natural sciences7. Clean energyTECNOLOGIA ELECTRONICANuclear physicsCambres d'ionitzacióXenonDouble beta decay0103 physical sciencesNuclear Experiment (nucl-ex)010306 general physicsNuclear ExperimentInstrumentationDetectors de radiacióMathematical PhysicsPhysicsRadionuclideRadiation calculationsIonization chambers010308 nuclear & particles physicsTime projection Chambers (TPC)Gamma detectors (scintillators CZT HPG HgI etc)FísicaInstrumentation and Detectors (physics.ins-det)chemistryNuclear countersNeutrino

description

[EN] The "Neutrino Experiment with a Xenon Time-Projection Chamber" (NEXT) is intended to investigate the neutrinoless double beta decay of Xe-136, which requires a severe suppression of potential backgrounds. An extensive screening and material selection process is underway for NEXT since the control of the radiopurity levels of the materials to be used in the experimental set-up is a must for rare event searches. First measurements based on Glow Discharge Mass Spectrometry and gamma-ray spectroscopy using ultra-low background germanium detectors at the Laboratorio Subterraneo de Canfranc (Spain) are described here. Activity results for natural radioactive chains and other common radionuclides are summarized, being the values obtained for some materials like copper and stainless steel very competitive. The implications of these results for the NEXT experiment are also discussed.

https://dx.doi.org/10.48550/arxiv.1211.3961