NL repository
menu
검색
Library
Browse
Communities & Collections
By Date
Authors
Titles
Subject
My Repository
My Account
Receive email updates
Edit Profile
DSpace at EWHA
사범대학
과학교육과
Journal papers
View : 80 Download: 0
Alpha backgrounds in NaI(Tl) crystals of COSINE-100
Title
Alpha backgrounds in NaI(Tl) crystals of COSINE-100
Authors
Adhikari
;
G.
;
Carlin
;
N.
;
Cavalcante
;
D.F.F.S.
;
Cho
;
J.Y.
;
Choi
;
J.J.
;
S.
;
Ezeribe
;
A.C.
;
França
;
L.E.
;
Ha
;
C.
;
Hahn
;
I.S.
;
Hollick
;
S.J.
;
Jeon
;
E.J.
;
Joo
;
H.W.
;
Kang
;
W.G.
;
Kauer
;
M.
;
Kim
;
B.H.
;
H.J.
;
J.
;
K.W.
;
S.H.
;
S.K.
;
S.W.
;
W.K.
;
Y.D.
;
Y.H.
;
Ko
;
Y.J.
;
Lee
;
D.H.
;
E.K.
;
H.
;
H.S.
;
H.Y.
;
M.H.
;
S.M.
;
Leonard
;
D.S.
;
Luan
;
N.T.
;
Manzato
;
Maruyama
;
R.H.
;
Neal
;
R.J.
;
B.B.
;
Nikkel
;
J.A.
;
Olsen
;
S.L.
;
Park
;
B.J.
;
H.K.
;
J.C.
;
K.S.
;
S.D.
;
Pitta
;
R.L.C.
;
Prihtiadi
;
Ra
;
Rott
;
Scarff
;
A.
;
Shin
;
K.A.
;
Son
;
M.K.
;
Spooner
;
N.J.C.
;
Truc
;
L.T.
;
Yang
;
L.
;
Yu
;
G.H.
Ewha Authors
한인식
SCOPUS Author ID
한인식
Issue Date
2024
Journal Title
Astroparticle Physics
ISSN
0927-6505
Citation
Astroparticle Physics vol. 158
Keywords
<sup>210</sup>Pb
;
<sup>210</sup>Po
;
<sup>216</sup>Po
;
<sup>232</sup>Th
;
Alpha
;
Half-life
;
NaI(Tl)
;
Quenching
Publisher
Elsevier B.V.
Indexed
SCIE; SCOPUS
Document Type
Article
Abstract
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 interest and are detected via β decay and α decay. Analysis of the α channel complements the background model as observed in the β/γ channel. We present the measurement of the quenching factors and Monte Carlo simulation results and activity quantification of the α decay components of the COSINE-100 NaI(Tl) crystals. The data strongly indicate that the α decays probabilistically undergo two possible quenching factors but require further investigation. The fitted results are consistent with independent measurements and improve the overall understanding of the COSINE-100 backgrounds. Furthermore, the half-life of 216Po has been measured to be 143.4±1.2 ms, which is consistent with and more precise than most current measurements. © 2024 Elsevier B.V.
DOI
10.1016/j.astropartphys.2024.102945
Appears in Collections:
사범대학
>
과학교육과
>
Journal papers
Files in This Item:
There are no files associated with this item.
Export
RIS (EndNote)
XLS (Excel)
XML
Show full item record
Find@EWHA
트윗하기
BROWSE
Communities & Collections
By Date
Authors
Titles
Subject