COSINE is a dark matter search experiment based on an array of low background NaI(Tl) crystals located at the Yangyang underground laboratory. The assembly of COSINE-100 was completed in the summer of 2016 and the detector is currently collecting physics quality data aimed at reproducing the DAMA/LIBRA experiment that reported an annual modulation signal. Stable operation has been achieved and will continue for at least two years. Here, we describe the design of COSINE-100, including the shielding arrangement, the configuration of the NaI(Tl) crystal detection elements, the veto systems, and the associated operational systems, and we show the current performance of the experiment.
@article{arxiv.1710.05299,
title = {Initial Performance of the COSINE-100 Experiment},
author = {G. Adhikari and P. Adhikari and E. Barbosa de Souza and N. Carlin and S. Choi and W. Q. Choi and M. Djamal and A. C. Ezeribe and C. Ha and I. S. Hahn and A. J. F. Hubbard and E. J. Jeon and J. H. Jo and H. W. Joo and W. Kang and W. G. Kang and M. Kauer and B. H. Kim and H. Kim and H. J. Kim and K. W. Kim and M. C. Kim and N. Y. Kim and S. K. Kim and Y. D. Kim and Y. H. Kim and V. A. Kudryavtsev and H. S. Lee and J. Lee and J. Y. Lee and M. H. Lee and D. S. Leonard and K. E. Lim and W. A. Lynch and R. H. Maruyama and F. Mouton and S. L. Olsen and H. K. Park and H. S. Park and J. S. Park and K. S. Park and W. Pettus and Z. P. Pierpoint and H. Prihtiadi and S. Ra and F. R. Rogers and C. Rott and A. Scarff and N. J. C. Spooner and W. G. Thompson and L. Yang and S. H. Yong},
journal= {arXiv preprint arXiv:1710.05299},
year = {2018}
}