Production of high purity TeO2 single crystals for the study of neutrinoless double beta decay
Production of high purity TeO2 single crystals for the study of neutrinoless double beta decay.
J. Crys. Growth 312 (2010) 2999–3008
High purityTeO2 crystalsareproducedtobeusedforthesearchfortheneutrinolessdoublebetadecay
of 130Te. Dedicatedproductionlinesforrawmaterialsynthesis,crystalgrowth,andsurfaceprocessing
were builtcompliantwithradio-purityconstraintsspecifictorareeventphysicsexperiments.High
sensitivitymeasurementsofradio-isotopeconcentrationsinrawmaterials,reactants,consumables,
ancillaries,andintermediaryproductsusedforTeO2 crystalsproductionarereported.Indicationsare
given onthecrystalsperfectionandhowitisachievedandmaintainedinalargescaleproduction
process. Productionandcertificationprotocolsarepresentedandresultingready-to-useTeO2 crystals
are described.
High purityTeO2 crystalsareproducedtobeusedforthesearchfortheneutrinolessdoublebetadecay
of 130Te. Dedicatedproductionlinesforrawmaterialsynthesis,crystalgrowth,andsurfaceprocessing
were builtcompliantwithradio-purityconstraintsspecifictorareeventphysicsexperiments.High
sensitivitymeasurementsofradio-isotopeconcentrationsinrawmaterials,reactants,consumables,
ancillaries,andintermediaryproductsusedforTeO2 crystalsproductionarereported.Indicationsare
given onthecrystalsperfectionandhowitisachievedandmaintainedinalargescaleproduction
process. Productionandcertificationprotocolsarepresentedandresultingready-to-useTeO2 crystals
are described.