Initial Performance of the COSINE-100 Experiment

G. Adhikari , P. Adhikari , E. Barbosa de Souza , N. Carlin , S. Choi , W.Q. Choi , M. Djamal , A.C. Ezeribe

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C. Ha I.S. Hahn A.J.F. Hubbard E.J. Jeon J.H. Jo H.W. Joo W. Kang W.G. Kang M. Kauer B.H. Kim H. Kim H.J. Kim K.W. Kim M.C. Kim N.Y. Kim S.K. Kim Y.D. Kim Y.H. Kim V.A. Kudryavtsev H.S. Lee J. Lee J.Y. Lee M.H. Lee D.S. Leonard K.E. Lim W.A. Lynch R.H. Maruyama F. Mouton S.L. Olsen H.K. Park H.S. Park J.S. Park K.S. Park W. Pettus Z.P. Pierpoint H. Prihtiadi S. Ra F.R. Rogers C. Rott A. Scarff N.J.C. Spooner W.G. Thompson L. Yang S.H. Yong

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classification ⚛️ physics.ins-det astro-ph.IMhep-ex

keywords experimentcosine-100performancesystemsachievedaimedannualarrangement

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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.

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Initial Performance of the COSINE-100 Experiment

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