Background model for the NaI(Tl) crystals in COSINE-100

P. Adhikari; G. Adhikari; E. Barbosa de Souza; N. Carlin; S. Choi; W. Q. 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; M. Kauer; W. S. Kang; B. H. Kim; H. Kim; H. J. Kim; K. W. Kim; M. C. Kim; N. Y. Kim; S. K. Kim; Y. D. Kim; Y. H. Kim; V. A. Kudryavtsev; H. S. Lee; J. Lee; J. Y. Lee; M. H. Lee; D. S. Leonard; W. A. Lynch; R. H. Maruyama; F. Mouton; S. L. Olsen; H. K. Park; H. S. Park; J. S. Park; K. S. Park; W. Pettus; H. Prihtiadi; S. Ra; C. Rott; A. Scarff; N. J.C. Spooner; W. G. Thompson; L. Yang; S. H. Yong

doi:10.1140/epjc/s10052-018-5970-2

Background model for the NaI(Tl) crystals in COSINE-100

P. Adhikari, G. Adhikari, E. Barbosa de Souza, N. Carlin, S. Choi, W. Q. 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, M. Kauer, W. S. Kang, B. H. Kim, H. Kim, H. J. KimK. W. Kim, M. C. Kim, N. Y. Kim, S. K. Kim, Y. D. Kim, Y. H. Kim, V. A. Kudryavtsev, H. S. Lee, J. Lee, J. Y. Lee, M. H. Lee, D. S. Leonard, W. A. Lynch, R. H. Maruyama, F. Mouton, S. L. Olsen, H. K. Park, H. S. Park, J. S. Park, K. S. Park, W. Pettus, H. Prihtiadi, S. Ra, C. Rott, A. Scarff, N. J.C. Spooner, W. G. Thompson, L. Yang, S. H. Yong

Research output: Contribution to journal › Article › peer-review

62 Scopus citations

Abstract

The COSINE-100 dark matter search experiment is an array of NaI(Tl) crystal detectors located in the Yangyang Underground Laboratory (Y2L). To understand measured backgrounds in the NaI(Tl) crystals we have performed Monte Carlo simulations using the Geant4 toolkit and developed background models for each crystal that consider contributions from both internal and external sources, including cosmogenic nuclides. The background models are based on comparisons of measurement data with Monte Carlo simulations that are guided by a campaign of material assays and are used to evaluate backgrounds and identify their sources. The average background level for the six crystals (70 kg total mass) that are studied is 3.5 counts/day/keV/kg in the (2–6) keV energy interval. The dominant contributors in this energy region are found to be ²¹⁰Pb and ³H.

Original language	English
Article number	490
Journal	European Physical Journal C
Volume	78
Issue number	6
DOIs	https://doi.org/10.1140/epjc/s10052-018-5970-2
State	Published - 1 Jun 2018

Access to Document

10.1140/epjc/s10052-018-5970-2

Cite this

Adhikari, P., Adhikari, G., Souza, E. B. D., Carlin, N., Choi, S., Choi, W. Q., Djamal, M., Ezeribe, A. C., Ha, C., Hahn, I. S., Hubbard, A. J. F., Jeon, E. J., Jo, J. H., Joo, H. W., Kang, W. G., Kauer, M., Kang, W. S., Kim, B. H., Kim, H., ... Yong, S. H. (2018). Background model for the NaI(Tl) crystals in COSINE-100. European Physical Journal C, 78(6), Article 490. https://doi.org/10.1140/epjc/s10052-018-5970-2

@article{237d2cbabb164277a05adc31dde14d4a,

title = "Background model for the NaI(Tl) crystals in COSINE-100",

abstract = "The COSINE-100 dark matter search experiment is an array of NaI(Tl) crystal detectors located in the Yangyang Underground Laboratory (Y2L). To understand measured backgrounds in the NaI(Tl) crystals we have performed Monte Carlo simulations using the Geant4 toolkit and developed background models for each crystal that consider contributions from both internal and external sources, including cosmogenic nuclides. The background models are based on comparisons of measurement data with Monte Carlo simulations that are guided by a campaign of material assays and are used to evaluate backgrounds and identify their sources. The average background level for the six crystals (70 kg total mass) that are studied is 3.5 counts/day/keV/kg in the (2–6) keV energy interval. The dominant contributors in this energy region are found to be 210Pb and 3H.",

author = "P. Adhikari and G. Adhikari and Souza, {E. Barbosa de} and N. Carlin and S. Choi and Choi, {W. Q.} and M. Djamal and Ezeribe, {A. C.} and C. Ha and Hahn, {I. S.} and Hubbard, {A. J.F.} and Jeon, {E. J.} and Jo, {J. H.} and Joo, {H. W.} and Kang, {W. G.} and M. Kauer and Kang, {W. S.} and Kim, {B. H.} and H. Kim and Kim, {H. J.} and Kim, {K. W.} and Kim, {M. C.} and Kim, {N. Y.} and Kim, {S. K.} and Kim, {Y. D.} and Kim, {Y. H.} and Kudryavtsev, {V. A.} and Lee, {H. S.} and J. Lee and Lee, {J. Y.} and Lee, {M. H.} and Leonard, {D. S.} and Lynch, {W. A.} and Maruyama, {R. H.} and F. Mouton and Olsen, {S. L.} and Park, {H. K.} and Park, {H. S.} and Park, {J. S.} and Park, {K. S.} and W. Pettus and H. Prihtiadi and S. Ra and C. Rott and A. Scarff and Spooner, {N. J.C.} and Thompson, {W. G.} and L. Yang and Yong, {S. H.}",

note = "Publisher Copyright: {\textcopyright} 2018, The Author(s).",

year = "2018",

month = jun,

day = "1",

doi = "10.1140/epjc/s10052-018-5970-2",

language = "English",

volume = "78",

journal = "European Physical Journal C",

issn = "1434-6044",

publisher = "Springer Nature",

number = "6",

}

Adhikari, P, Adhikari, G, Souza, EBD, Carlin, N, Choi, S, Choi, WQ, Djamal, M, Ezeribe, AC, Ha, C, Hahn, IS, Hubbard, AJF, Jeon, EJ, Jo, JH, Joo, HW, Kang, WG, Kauer, M, Kang, WS, Kim, BH, Kim, H, Kim, HJ, Kim, KW, Kim, MC, Kim, NY, Kim, SK, Kim, YD, Kim, YH, Kudryavtsev, VA, Lee, HS, Lee, J, Lee, JY, Lee, MH, Leonard, DS, Lynch, WA, Maruyama, RH, Mouton, F, Olsen, SL, Park, HK, Park, HS, Park, JS, Park, KS, Pettus, W, Prihtiadi, H, Ra, S, Rott, C, Scarff, A, Spooner, NJC, Thompson, WG, Yang, L & Yong, SH 2018, 'Background model for the NaI(Tl) crystals in COSINE-100', European Physical Journal C, vol. 78, no. 6, 490. https://doi.org/10.1140/epjc/s10052-018-5970-2

TY - JOUR

T1 - Background model for the NaI(Tl) crystals in COSINE-100

AU - Adhikari, P.

AU - Adhikari, G.

AU - Souza, E. Barbosa de

AU - Carlin, N.

AU - Choi, S.

AU - Choi, W. Q.

AU - Djamal, M.

AU - Ezeribe, A. C.

AU - Ha, C.

AU - Hahn, I. S.

AU - Hubbard, A. J.F.

AU - Jeon, E. J.

AU - Jo, J. H.

AU - Joo, H. W.

AU - Kang, W. G.

AU - Kauer, M.

AU - Kang, W. S.

AU - Kim, B. H.

AU - Kim, H.

AU - Kim, H. J.

AU - Kim, K. W.

AU - Kim, M. C.

AU - Kim, N. Y.

AU - Kim, S. K.

AU - Kim, Y. D.

AU - Kim, Y. H.

AU - Kudryavtsev, V. A.

AU - Lee, H. S.

AU - Lee, J.

AU - Lee, J. Y.

AU - Lee, M. H.

AU - Leonard, D. S.

AU - Lynch, W. A.

AU - Maruyama, R. H.

AU - Mouton, F.

AU - Olsen, S. L.

AU - Park, H. K.

AU - Park, H. S.

AU - Park, J. S.

AU - Park, K. S.

AU - Pettus, W.

AU - Prihtiadi, H.

AU - Ra, S.

AU - Rott, C.

AU - Scarff, A.

AU - Spooner, N. J.C.

AU - Thompson, W. G.

AU - Yang, L.

AU - Yong, S. H.

PY - 2018/6/1

Y1 - 2018/6/1

N2 - The COSINE-100 dark matter search experiment is an array of NaI(Tl) crystal detectors located in the Yangyang Underground Laboratory (Y2L). To understand measured backgrounds in the NaI(Tl) crystals we have performed Monte Carlo simulations using the Geant4 toolkit and developed background models for each crystal that consider contributions from both internal and external sources, including cosmogenic nuclides. The background models are based on comparisons of measurement data with Monte Carlo simulations that are guided by a campaign of material assays and are used to evaluate backgrounds and identify their sources. The average background level for the six crystals (70 kg total mass) that are studied is 3.5 counts/day/keV/kg in the (2–6) keV energy interval. The dominant contributors in this energy region are found to be 210Pb and 3H.

AB - The COSINE-100 dark matter search experiment is an array of NaI(Tl) crystal detectors located in the Yangyang Underground Laboratory (Y2L). To understand measured backgrounds in the NaI(Tl) crystals we have performed Monte Carlo simulations using the Geant4 toolkit and developed background models for each crystal that consider contributions from both internal and external sources, including cosmogenic nuclides. The background models are based on comparisons of measurement data with Monte Carlo simulations that are guided by a campaign of material assays and are used to evaluate backgrounds and identify their sources. The average background level for the six crystals (70 kg total mass) that are studied is 3.5 counts/day/keV/kg in the (2–6) keV energy interval. The dominant contributors in this energy region are found to be 210Pb and 3H.

UR - http://www.scopus.com/inward/record.url?scp=85048593133&partnerID=8YFLogxK

U2 - 10.1140/epjc/s10052-018-5970-2

DO - 10.1140/epjc/s10052-018-5970-2

M3 - Article

AN - SCOPUS:85048593133

SN - 1434-6044

VL - 78

JO - European Physical Journal C

JF - European Physical Journal C

IS - 6

M1 - 490

ER -

Background model for the NaI(Tl) crystals in COSINE-100

Abstract

Access to Document

Other files and links

Fingerprint

Cite this