A reference material designed for the determination of natural radionuclides in solid samples (glass pellets) is described and the results of certification are presented. The material has been certified for 7 natural radionuclides (40K, 226Ra, 228Ra, 228Th, 232Th, 235U and 238U). An information value is given for 210Pb. Radon (222Rn) emanation experiments showed results comparable within participating laboratories, however, the number of data and precision was too low to carry out a certification process. The reference material may be used for quality management of analytical laboratories engaged in the high-sensitive analysis of radionuclides in the construction materials of detectors placed in ultra low background underground laboratories.
@article{arxiv.1507.03216,
title = {Reference material for natural radionuclides in glass designed for underground experiments},
author = {P. P. Povinec and M. K. Pham and J. Busto and C. Cerna and D. Degering and Y. Hamajima and K. Holy and M. Hult and M. Jeskovsky and M. Koehler and A. Kovacik and M. Laubenstein and P. Loaiza and F. Mamedov and C. Marquet and J. Mott and M. Mullerova and F. Perrot and F. Piquemal and J. -L. Reyss and R. Saakyan and H. Simgen and B. Soule and J. Stanicek and I. Sykora and I. Stekl},
journal= {arXiv preprint arXiv:1507.03216},
year = {2015}
}