The COSINE-100 Data Acquisition System
COSINE-100 Collaboration: G. Adhikari, P. Adhikari, E. Barbosa de, Souza, N. Carlin, S. Choi, W. Choi, M. Djamal, A. C. Ezeribe, C. Ha, I.S., Hahn, A. J. F. Hubbard, E.J. Jeon, J. H. Jo, H.W. Joo, W.G. Kang, W.S. Kang,, M. Kauer, H. Kim, H.J. Kim, K.W. Kim, M.C. Kim, N.Y. Kim
TL;DR
The paper details the design and implementation of the data acquisition system for COSINE-100, a dark matter detection experiment using NaI(Tl) crystals, focusing on waveform storage, trigger conditions, and system performance.
Contribution
It introduces the specific data acquisition system architecture and trigger strategies for COSINE-100, enabling effective data collection for dark matter search.
Findings
Total trigger rate for crystal/liquid scintillator is 15 Hz/24 Hz.
Waveform storage uses flash ADCs for crystal events.
Trigger conditions help distinguish signal from noise.
Abstract
COSINE-100 is a dark matter direct detection experiment designed to test the annual modulation signal observed by the DAMA/LIBRA experiment. COSINE-100 consists of 8 NaI(Tl) crystals with a total mass of 106 kg, a 2200 L liquid scintillator veto, and 37 muon detector panels. We present details of the data acquisition system of COSINE-100, including waveform storage using flash analog-to-digital converters for crystal events and integrated charge storage using charge-sensitive analog-to-digital converters for liquid scintillator and plastic scintillator muon veto events. We also discuss several trigger conditions developed in order to distinguish signal events from photomultiplier noise events. The total trigger rate observed for the crystal/liquid scintillator (plastic scintillator) detector is 15 Hz (24 Hz).
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