Production of high purity TeO2 single crystals for the study of neutrinoless double beta decay

C. Arnaboldi (1 , 2) , C. Brofferio (1 , A. Bryant (3 , 4) , C. Bucci (5) , L. Canonica (6 , 7)

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S. Capelli (1 M. Carrettoni (1 M. Clemenza (1 I. Dafinei (8) S. Di Domizio (6 F. Ferroni (9 8) E. Fiorini (1 Z. Ge (10) A. Giachero (1 L. Gironi (1 A. Giuliani (11 P. Gorla (5) E. Guardincerri (5 R. Kadel (3) K. Kazkaz (12) L. Kogler (3 Y. Kolomensky (3 J. Larsen (3) M. Laubenstein (5) Y. Li (13) C. Maiano (1 M. Martinez (1 R. Maruyama (14) S. Nisi (5) C. Nones (11 Eric B. Norman (12 15) A. Nucciotti (1 F. Orio (9 L. Pattavina (1 M. Pavan (1 G. Pessina (1 S. Pirro (1 E. Previtali (1 C. Rusconi (11 Nicholas D. Scielzo (12) M. Sisti (1 Alan R. Smith (3) W. Tian (13) M. Vignati (9 H. Wang (13) Y. Zhu (10) ((1) Dipartimento di Fisica dell'Universit\`a di Milano-Bicocca I-20126 - Italy (2) Sezione INFN di Milano-Bicocca I-20126 - Italy (3) Lawrence Berkeley National Laboratory Berkeley CA 94720 USA (4) Department of Physics University of California CA 94720 - USA (5) Laboratori Nazionali del Gran Sasso I-67010 Assergi (L'Aquila) I-67010 - Italy (6) Dipartimento di Fisica dell'Universita' di Genova I - 16126 - Italy (7) Sezione INFN di Genova Genova I-16146 - Italy (8) Sezione INFN di Roma P-le Aldo Moro 2 Roma I-00185 - Italy (9) Universit\`a "La Sapienza" Dipartimento di Fisica (10) Shanghai Institute of Ceramics Chinese Academy of Sciences Jiading district Shanghai 201800 P. R. China (11) Dipartimento di Fisica e Matematica dell'Universit\`a dell'Insubria Como I-22100 - Italy (12) Lawrence Livermore National Laboratory Livermore CA 94550 - USA (13) Shanghai Institute of Applied Physics Chinese Academy of Sciences (14) University of Wisconsin Madison WI 53706 - USA (15) Department of Nuclear Engineering CA 94720 USA)

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classification ❄️ cond-mat.mtrl-sci nucl-exphysics.ins-det

keywords crystalsproductionteo2highbetadecaydoubleneutrinoless

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High purity TeO2 crystals are produced to be used for the search for the neutrinoless double beta decay of 130Te. Dedicated production lines for raw material synthesis, crystal growth and surface processing were built compliant with radio-purity constraints specific to rare event physics experiments. High sensitivity measurements of radio-isotope concentrations in raw materials, reactants, consumables, ancillaries and intermediary products used for TeO2 crystals production are reported. Production and certification protocols are presented and resulting ready-to-use TeO2 crystals are described.

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Production of high purity TeO2 single crystals for the study of neutrinoless double beta decay

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