The COSINE-100 liquid scintillator veto system

Abstract

This paper describes the liquid scintillator veto system for the COSINE-100 dark matter experiment and its performance. The COSINE-100 detector consists of eight NaI(Tl) crystals immersed in 2200 L of linear alkylbenzene-based liquid scintillator. The liquid scintillator tags between 65 and 75% of the internal 40K background in the 2–6 keV energy region. We also describe the background model for the liquid scintillator, which is primarily used to assess its energy calibration and threshold.

Metadata

Authors/Creators:

Adhikari, G.
Souza, E.B.D.
Carlin, N.
Choi, J.J.
Choi, S.
Djamal, M.
Ezeribe, A.C.
Franca, L.E.
Ha, C.
Hahn, I.S.
Jeon, E.J.
Jo, J.H.
Kang, W.G.
Kauer, M.
Kim, H.
Kim, H.J.
Kim, K.W.
Kim, S.K.
Kim, Y.D.
Kim, Y.H.
Ko, Y.J.
Lee, E.K.
Lee, H.S.
Lee, J.
Lee, J.Y.
Lee, M.H.
Lee, S.H.
Leonard, D.S.
Manzato, B.B.
Maruyama, R.H.
Neal, R.J.
Olsen, S.L.
Park, B.J.
Park, H.K.
Park, H.S.
Park, K.S.
Pitta, R.L.C.
Prihtiadi, H.
Ra, S.J.
Rott, C.
Shin, K.A.
Scarff, A.
Spooner, N.J.C.
Thompson, W.G.
Yang, L.
Yu, G.H.

© 2021 Published by Elsevier B.V.. This is an author produced version of a paper subsequently published in Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. Uploaded in accordance with the publisher's self-archiving policy. Article available under the terms of the CC-BY-NC-ND licence (https://creativecommons.org/licenses/by-nc-nd/4.0/).

Keywords:

Dark matter; Liquid scintillator; COSINE-100; LAB

Dates: