TY - JOUR AU - NEXT Collaboration (Alvarez, V. et al AU - Carcel, S. AU - Cervera-Villanueva, A. AU - Diaz, J. AU - Ferrario, P. AU - Gil, A. AU - Gomez-Cadenas, J. J. AU - Laing, A. AU - Liubarsky, I. AU - Lorca, D. AU - Martin-Albo, J. AU - Monrabal, F. AU - Muñoz Vidal, J. AU - Nebot-Guinot, M. AU - Rodriguez, J. AU - Serra, L. AU - Simon, A. AU - Sorel, M. AU - Yahlali, N. PY - 2013 DA - 2013// TI - Radiopurity control in the NEXT-100 double beta decay experiment: procedures and initial measurements T2 - J. Instrum. JO - Journal of Instrumentation SP - T01002 - 19pp VL - 8 PB - Iop Publishing Ltd KW - Radiation calculations KW - Time projection Chambers (TPC) KW - Gamma detectors (scintillators KW - CZT KW - HPG KW - HgI etc) AB - The "Neutrino Experiment with a Xenon Time-Projection Chamber" (NEXT) is intended to investigate the neutrinoless double beta decay of Xe-136, which requires a severe suppression of potential backgrounds. An extensive screening and material selection process is underway for NEXT since the control of the radiopurity levels of the materials to be used in the experimental set-up is a must for rare event searches. First measurements based on Glow Discharge Mass Spectrometry and gamma-ray spectroscopy using ultra-low background germanium detectors at the Laboratorio Subterraneo de Canfranc (Spain) are described here. Activity results for natural radioactive chains and other common radionuclides are summarized, being the values obtained for some materials like copper and stainless steel very competitive. The implications of these results for the NEXT experiment are also discussed. SN - 1748-0221 UR - http://arxiv.org/abs/1211.3961 UR - https://doi.org/10.1088/1748-0221/8/01/T01002 DO - 10.1088/1748-0221/8/01/T01002 LA - English N1 - WOS:000320665400083 ID - NEXTCollaborationAlvarez_etal2013 ER -