Systematic study of trace radioactive impurities in candidate construction materials for EXO-200

D. S. Leonard , P. Grinberg , P. Weber , E. Baussan , Z. Djurcic , G. Keefer , A. Piepke , A. Pocar

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J.-L. Vuilleumier J.-M. Vuilleumier D. Akimov A. Bellerive M. Bowcock M. Breidenbach A. Burenkov R. Conley W. Craddock M. Danilov R. DeVoe M. Dixit A. Dolgolenko I. Ekchtout W. Fairbank Jr. J. Farine P. Fierlinger B. Flatt G. Gratta M. Green C. Hall K. Hall D. Hallman C. Hargrove R. Herbst J. Hodgson S. Jeng S. Kolkowitz A. Kovalenko D. Kovalenko F. LePort D. Mackay M. Moe M. Montero D\'iez R. Neilson A. Odian K. O'Sullivan L. Ounalli C. Y. Prescott P. C. Rowson D. Schenker D. Sinclair K. Skarpaas G. Smirnov V. Stekhanov V. Strickland C. Virtue K. Wamba J. Wodin

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classification ⚛️ physics.ins-det nucl-ex

keywords analysisconstructioncountingexo-200impuritiesmaterialsradioactivesystematic

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The Enriched Xenon Observatory (EXO) will search for double beta decays of 136Xe. We report the results of a systematic study of trace concentrations of radioactive impurities in a wide range of raw materials and finished parts considered for use in the construction of EXO-200, the first stage of the EXO experimental program. Analysis techniques employed, and described here, include direct gamma counting, alpha counting, neutron activation analysis, and high-sensitivity mass spectrometry.

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Systematic study of trace radioactive impurities in candidate construction materials for EXO-200

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