Search results for "Tetraphenyl butadiene"

showing 3 items of 3 documents

Design and characterization of the SiPM tracking system of NEXT-DEMO, a demonstrator prototype of the NEXT-100 experiment

2013

NEXT-100 experiment aims at searching the neutrinoless double-beta decay of the Xe-136 isotope using a TPC filled with a 100 kg of high-pressure gaseous xenon, with 90% isotopic enrichment. The experiment will take place at the Laboratorio Subterraneo de Canfranc (LSC), Spain. NEXT-100 uses electroluminescence (EL) technology for energy measurement with a resolution better than 1% FWHM. The gaseous xenon in the TPC additionally allows the tracks of the two beta particles to be recorded, which are expected to have a length of up to 30 cm at 10 bar pressure. The ability to record the topological signature of the beta beta 0 nu events provides a powerful background rejection factor for the bet…

Enginyeria -- InstrumentsMECANICA DE LOS MEDIOS CONTINUOS Y TEORIA DE ESTRUCTURASBar (music)Tracking (particle physics)7. Clean energy01 natural sciencesEngineering instrumentsTECNOLOGIA ELECTRONICAchemistry.chemical_compoundData acquisitionSilicon photomultiplierOptics0103 physical sciencesPhysical instrumentsVisible and IR photons (solid-state)010306 general physicsInstrumentationPhoton detectors for UVMathematical PhysicsDetectors de radiacióPhysics010308 nuclear & particles physicsDynamic rangebusiness.industryTime projection Chambers (TPC)Electrical engineeringTetraphenyl butadieneFísicaTracking systemDetectorsGaseous imaging and tracking detectorschemistryNuclear countersParticle tracking detectors (Solid-state detectors)Física -- InstrumentsbusinessDark current
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NEXT-100 Technical Design Report (TDR). Executive summary

2012

[EN] In this Technical Design Report (TDR) we describe the NEXT-100 detector that will search for neutrinoless double beta decay (ßß0v) in 136XE at the Laboratorio Subterráneo de Canfranc (LSC), in Spain. The document formalizes the design presented in our Conceptual Design Report (CDR): an electroluminescence time projection chamber, with separate readout planes for calorimetry and tracking, located, respectively, behind cathode and anode. The detector is designed to hold a maximum of about 150 kg of xenon at 15 bar, or 100 kg at 10 bar. This option builds in the capability to increase the total isotope mass by 50% while keeping the operating pressure at a manageable level. The readout pla…

MECANICA DE LOS MEDIOS CONTINUOS Y TEORIA DE ESTRUCTURASPhotomultiplierPhysics - Instrumentation and DetectorsBar (music)Time projection chambersFOS: Physical scienceschemistry.chemical_elementWavelength shifterTracking (particle physics)7. Clean energy01 natural sciencesHigh Energy Physics - ExperimentTECNOLOGIA ELECTRONICAHigh Energy Physics - Experiment (hep-ex)chemistry.chemical_compoundXenonOptics0103 physical sciences010306 general physicsInstrumentationMathematical PhysicsPhysicsTime projection chamber010308 nuclear & particles physicsbusiness.industryDetectorFísicaTetraphenyl butadieneDetectorsInstrumentation and Detectors (physics.ins-det)Gas detectorsDetectors de gasoschemistryDetector design and construction technologies and materialsbusinessJournal of Instrumentation
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Ageing studies of TPB in noble gas detectors for dark matter and neutrinoless ββ decay searches

2017

Noble gases (Xe, Ar, Kr) are very attractive as detector media in Dark Matter search and neutrinoless double-beta decay experiments. However, the detection of their scintillation light (in the VUV spectral region) requires shifting the VUV light to visible light, where standard photosensors are more efficient. Tetraphenyl butadiene (TPB) is widely used as wavelength shifter, absorbing the VUV light and re-emitting in the blue region (~430nm). TPB is an organic molecule that may degrade due to exposure to environmental agents and also to ultraviolet light. In this work, we present TPB ageing studies due to exposure to VUV light, aiming at quantifying the reduction of the absolute fluorescenc…

PhysicsScintillation010308 nuclear & particles physicsPhotodetectorNoble gasTetraphenyl butadieneWavelength shifter01 natural sciences7. Clean energyAtomic and Molecular Physics and OpticsAnalytical Chemistrylaw.inventionchemistry.chemical_compoundchemistry13. Climate actionlaw0103 physical sciencesUltraviolet lightAtomic physics010306 general physicsInstrumentationSpectroscopyVisible spectrumMonochromator
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