0000000000208869

AUTHOR

S. Pingulkar

showing 2 related works from this author

Mitigation of backgrounds from cosmogenic 137 Xe in xenon gas experiments using 3 He neutron capture

2020

[EN] Xe-136 is used as the target medium for many experiments searching for 0 nu beta beta. Despite underground operation, cosmic muons that reach the laboratory can produce spallation neutrons causing activation of detector materials. A potential background that is difficult to veto using muon tagging comes in the form of Xe-137 created by the capture of neutrons on Xe-136. This isotope decays via beta decay with a half-life of 3.8 min and a Q(beta) of similar to 4.16 MeV. This work proposes and explores the concept of adding a small percentage of He-3 to xenon as a means to capture thermal neutrons and reduce the number of activations in the detector volume. When using this technique we f…

Nuclear and High Energy PhysicsPhysics - Instrumentation and DetectorsScintillation and light emission processesGas and liquid scintillatorsFOS: Physical scienceschemistry.chemical_element01 natural sciences7. Clean energyHigh Energy Physics - ExperimentTECNOLOGIA ELECTRONICANuclear physicsGaseous detectorsSolidHigh Energy Physics - Experiment (hep-ex)XenonDouble beta decay0103 physical sciencesIsotopes of xenonSpallationNeutron010306 general physicsPhysics010308 nuclear & particles physicsFísicaInstrumentation and Detectors (physics.ins-det)Beta DecayNeutron temperatureNeutron capturechemistryScintillatorsRadioactive decayJournal of Physics G: Nuclear and Particle Physics
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Mitigation of backgrounds from cosmogenic 137Xe in xenon gas experiments using 3He neutron capture

2021

136Xe is used as the target medium for many experiments searching for 0¿ßß. Despite underground operation, cosmic muons that reach the laboratory can produce spallation neutrons causing activation of detector materials. A potential background that is difficult to veto using muon tagging comes in the form of 137Xe created by the capture of neutrons on 136Xe. This isotope decays via beta decay with a half-life of 3.8 min and a Q ß of ~4.16 MeV. This work proposes and explores the concept of adding a small percentage of 3He to xenon as a means to capture thermal neutrons and reduce the number of activations in the detector volume. When using this technique we find the contamination from 137Xe …

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