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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.

Authors:
 [1];  [1];  [2];  [3];  [4];  [5];  [6];  [7];  [8];  [9];  [2];  [8];  [2];  [4];  [8];  [10];  [11];  [8];  [8];  [12] more »;  [8];  [11];  [8];  [4];  [13];  [14];  [7];  [8];  [8];  [4];  [8];  [8];  [7];  [2];  [7];  [8];  [15];  [16];  [8];  [8];  [2];  [6];  [8];  [11];  [7];  [7];  [2];  [17];  [8] « less
  1. Sejong University, Seoul (South Korea)
  2. Yale Univ., New Haven, CT (United States)
  3. University of São Paulo (Brazil)
  4. Seoul National University (Republic of Korea)
  5. Korea Institue of Science and Technology Information, Daejeon (Republic of Korea)
  6. Bandung Institute of Technology (Indonesia)
  7. Univ. of Sheffield (United Kingdom)
  8. Institute for Basic Science (IBS), Daejeon (Republic of Korea)
  9. Ewha Womans University, Seoul (Republic of Korea)
  10. Univ. of Wisconsin, Madison, WI (United States)
  11. Sungkyunkwan University, Seoul (Republic of Korea)
  12. Kyungpook National University, Daegu (Republic of Korea)
  13. Sejong University (South Korea); Institute for Basic Science (IBS), Daejeon (Republic of Korea)
  14. Institute for Basic Science (IBS), Daejeon (Republic of Korea); Korea Research Institute of Standards and Science, Daejeon (Republic of Korea)
  15. Korea University, Sejong (South Korea)
  16. Korea Research Institute of Standards and Science, Daejeon (Republic of Korea)
  17. University of Illinois at Urbana-Champaign, IL (United States)
Publication Date:
Research Org.:
Krell Institute, Ames, IA (United States)
Sponsoring Org.:
USDOE National Nuclear Security Administration (NNSA)
OSTI Identifier:
1510290
Grant/Contract Number:  
FC52-08NA28752
Resource Type:
Accepted Manuscript
Journal Name:
European Physical Journal. C, Particles and Fields
Additional Journal Information:
Journal Volume: 78; Journal Issue: 6; Journal ID: ISSN 1434-6044
Publisher:
Springer
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE

Citation Formats

Adhikari, P., Adhikari, G., Souza, E. Barbosa de, 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., Kim, H. J., Kim, K. W., Kim, M. C., Kim, N. Y., Kim, S. K., Kim, Y. D., Kim, Y. H., Kudryavtsev, V. A., Lee, H. S., Lee, J., Lee, J. Y., Lee, M. H., Leonard, D. S., Lynch, W. A., Maruyama, R. H., Mouton, F., Olsen, S. L., Park, H. K., Park, H. S., Park, J. S., Park, K. S., Pettus, W., Prihtiadi, H., Ra, S., Rott, C., Scarff, A., Spooner, N. J. C., Thompson, W. G., Yang, L., and Yong, S. H. Background model for the NaI(Tl) crystals in COSINE-100. United States: N. p., 2018. Web. doi:10.1140/epjc/s10052-018-5970-2.
Adhikari, P., Adhikari, G., Souza, E. Barbosa de, 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., Kim, H. J., Kim, K. W., Kim, M. C., Kim, N. Y., Kim, S. K., Kim, Y. D., Kim, Y. H., Kudryavtsev, V. A., Lee, H. S., Lee, J., Lee, J. Y., Lee, M. H., Leonard, D. S., Lynch, W. A., Maruyama, R. H., Mouton, F., Olsen, S. L., Park, H. K., Park, H. S., Park, J. S., Park, K. S., Pettus, W., Prihtiadi, H., Ra, S., Rott, C., Scarff, A., Spooner, N. J. C., Thompson, W. G., Yang, L., & Yong, S. H. Background model for the NaI(Tl) crystals in COSINE-100. United States. doi:10.1140/epjc/s10052-018-5970-2.
Adhikari, P., Adhikari, G., Souza, E. Barbosa de, 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., Kim, H. J., Kim, K. W., Kim, M. C., Kim, N. Y., Kim, S. K., Kim, Y. D., Kim, Y. H., Kudryavtsev, V. A., Lee, H. S., Lee, J., Lee, J. Y., Lee, M. H., Leonard, D. S., Lynch, W. A., Maruyama, R. H., Mouton, F., Olsen, S. L., Park, H. K., Park, H. S., Park, J. S., Park, K. S., Pettus, W., Prihtiadi, H., Ra, S., Rott, C., Scarff, A., Spooner, N. J. C., Thompson, W. G., Yang, L., and Yong, S. H. Tue . "Background model for the NaI(Tl) crystals in COSINE-100". United States. doi:10.1140/epjc/s10052-018-5970-2. https://www.osti.gov/servlets/purl/1510290.
@article{osti_1510290,
title = {Background model for the NaI(Tl) crystals in COSINE-100},
author = {Adhikari, P. and Adhikari, G. and Souza, E. Barbosa de and Carlin, N. and Choi, S. and Choi, W. Q. and Djamal, M. and Ezeribe, A. C. and Ha, C. 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 Kauer, M. and Kang, W. S. and Kim, B. H. and Kim, H. 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 Lee, J. and Lee, J. Y. and Lee, M. H. and Leonard, D. S. and Lynch, W. A. and Maruyama, R. H. and Mouton, F. and Olsen, S. L. and Park, H. K. and Park, H. S. and Park, J. S. and Park, K. S. and Pettus, W. and Prihtiadi, H. and Ra, S. and Rott, C. and Scarff, A. and Spooner, N. J. C. and Thompson, W. G. and Yang, L. and Yong, S. H.},
abstractNote = {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.},
doi = {10.1140/epjc/s10052-018-5970-2},
journal = {European Physical Journal. C, Particles and Fields},
number = 6,
volume = 78,
place = {United States},
year = {2018},
month = {6}
}

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