Alpha backgrounds in NaI(Tl) crystals of COSINE-100

G. Adhikari, N. Carlin, D. F. F. S. Cavalcante +60

COSINE-100 is a dark matter direct detection experiment with 106 kg NaI(Tl) as the target material. 210Pb and daughter isotopes are a dominant background in the WIMP region of inte…