176 citations · 1.2k across the 44 of their papers we have counts for
19 papers · 1 filter
Upgrade of NaI(Tl) crystal encapsulation for the NEON experiment
J. J. Choi, E. J. Jeon, J. Y. Kim +14
The Neutrino Elastic-scattering Observation with NaI(Tl) experiment (NEON) aims to detect coherent elastic neutrino-nucleus scattering~(\cenns) in a NaI(Tl) crystal using reactor a…
Waveform Simulation for Scintillation Characteristics of NaI(Tl) Crystal
J. J. Choi, C. Ha, E. J. Jeon +10
The lowering of the energy threshold in the NaI detector is crucial not only for comprehensive validation of DAMA/LIBRA but also for exploring new possibilities in the search for l…
Scintillation characteristics of an undoped CsI crystal at low-temperature for dark matter search
W. K. Kim, H. Y. Lee, K. W. Kim +4
The scintillation characteristics of 1 g undoped CsI crystal were studied by directly coupling two silicon photomultipliers(SiPMs) over a temperature range from room temperature to…
Radon concentration variations at the Yangyang underground laboratory
C. Ha, Y. Jeong, W. G. Kang +9
The concentration of radon in the air has been measured in the 700 m-deep Yangyang underground laboratory between October 2004 and May 2022. The average concentrations in two exper…
Study on NaI(Tl) crystal at -35 C for dark matter detection
S. H. Lee, G. S. Kim, H. J. Kim +3
We present the responses of a NaI(Tl) crystal in terms of the light yield and pulse shape characteristics of nuclear recoil events at two different temperatures: 22 C (room tempera…
Scintillation characteristics of a NaI(Tl) crystal at low-temperature with silicon photomultiplier
H. Y. Lee, J. A. Jeon, K. W. Kim +3
Scintillation characteristics of a thallium doped sodium iodide (NaI(Tl)) crystal with a dimension of 0.6 x 0.6 x 2 cm3 are studied by attaching a silicon photomultiplier (SiPM) di…
The environmental monitoring system at the COSINE-100 experiment
H. Kim, G. Adhikari, E. Barbosa de Souza +50
The COSINE-100 experiment is designed to test the DAMA experiment which claimed an observation of a dark matter signal from an annual modulation in their residual event rate. To me…
Improving the light collection using a new NaI(Tl)crystal encapsulation
J. J. Choi, B. J. Park, C. Ha +7
NaI(Tl) crystals are used as particle detectors in a variety of rare-event search experiments because of their superb light-emission quality. The crystal light yield is generally h…
Lowering the energy threshold in COSINE-100 dark matter searches
G. Adhikari, E. Barbosa de Souza, N. Carlin +43
COSINE-100 is a dark matter detection experiment that uses NaI(Tl) crystal detectors operating at the Yangyang underground laboratory in Korea since September 2016. Its main goal i…
Development of ultra-pure NaI(Tl) detectors for the COSINE-200 experiment
B. J. Park, J. J. Choe, J. S. Choi +17
The annual modulation signal observed by the DAMA experiment is a long-standing question in the community of dark matter direct detection. This necessitates an independent verifica…
The COSINE-100 Liquid Scintillator Veto System
G. Adhikari, E. Barbosa de Souza, N. Carlin +43
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 i…
Depth profile study of Pb in the surface of an NaI(Tl) crystal
G. H. Yu, C. Ha, E. J. Jeon +6
The surface Pb is one of the main background sources for dark-matter-search experiments using NaI(Tl) crystals, and its spectral features associated with the beta-decay eve…
The COSINE-100 Data Acquisition System
100 Collaboration, G. Adhikari, P. Adhikari +44
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) crysta…
Study of fast neutron detector for COSINE-100 experiment
G. Adhikari, P. Adhikari, C. Ha +11
A monitoring system for fast neutrons is planned in the COSINE experiment, a dark matter experiment with NaI crystals. We pursued several R&D approaches for a neutron detector usin…
Muon detector for the COSINE-100 experiment
100 Collaboration, H. Prihtiadi, G. Adhikari +49
The COSINE-100 dark matter search experiment has started taking physics data with the goal of performing an independent measurement of the annual modulation signal observed by DAMA…
Initial Performance of the COSINE-100 Experiment
G. Adhikari, P. Adhikari, E. Barbosa de Souza +49
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 comple…
Understanding internal backgrounds of NaI(Tl) crystals toward a 200~kg array for the KIMS-NaI experiment
P. Adhikari, G. Adhikari, S. Choi +24
The Korea Invisible Mass Search (KIMS) collaboration has developed low-background NaI(Tl) crystals that are suitable for the direct detection of WIMP dark matter. With experience b…
Measurement of the quenching and channeling effects in a CsI crystal used for a WIMP search
J. H. Lee, G. B. Kim, I. S. Seong +25
We have studied channeling effects in a Cesium Iodide (CsI) crystal that is similar in composition to the ones being used in a search for Weakly Interacting Massive Particles (WIMP…
Neutron calibration facility with an Am-Be source for pulse shape discrimination measurement of CsI(Tl) crystals
H. S. Lee, H. Bhang, J. H. Choi +19
We constructed a neutron calibration facility based on a 300-mCi Am-Be source in conjunction with a search for weakly interacting massive particle candidates for dark matter. The f…