Radiopurity measurements of liquid scintillator for the COSINE-100 Upgrade
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arXiv
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| Main Authors: | , , , , , , , , , , , , , , |
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| Format: | Preprint |
| Published: |
2024
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| _version_ | 1866915364650090496 |
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| author | Kim, J. Ha, C. Kim, S. H. Kim, W. K. Kim, Y. D. Ko, Y. J. Lee, E. K. Lee, H. Lee, H. S. Lee, I. S. Lee, J. Lee, S. H. Lee, S. M. Lee, Y. J. Yu, G. H. |
| author_facet | Kim, J. Ha, C. Kim, S. H. Kim, W. K. Kim, Y. D. Ko, Y. J. Lee, E. K. Lee, H. Lee, H. S. Lee, I. S. Lee, J. Lee, S. H. Lee, S. M. Lee, Y. J. Yu, G. H. |
| contents | A new 2,400 L liquid scintillator has been produced for the COSINE-100 Upgrade, which is under construction at Yemilab for the next COSINE dark matter experiment phase. The linear-alkyl-benzene-based scintillator is designed to serve as a veto for NaI(Tl) crystal targets and a separate platform for rare event searches. We measured using a sample consisting of a custom-made 445 mL cylindrical Teflon container equipped with two 3-inch photomultiplier tubes. Analyses show activity levels of $0.091 \pm 0.042$ mBq/kg for $^{238}$U and $0.012 \pm 0.007$ mBq/kg for $^{232}$Th. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2411_05256 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Radiopurity measurements of liquid scintillator for the COSINE-100 Upgrade Kim, J. Ha, C. Kim, S. H. Kim, W. K. Kim, Y. D. Ko, Y. J. Lee, E. K. Lee, H. Lee, H. S. Lee, I. S. Lee, J. Lee, S. H. Lee, S. M. Lee, Y. J. Yu, G. H. Instrumentation and Detectors High Energy Physics - Experiment A new 2,400 L liquid scintillator has been produced for the COSINE-100 Upgrade, which is under construction at Yemilab for the next COSINE dark matter experiment phase. The linear-alkyl-benzene-based scintillator is designed to serve as a veto for NaI(Tl) crystal targets and a separate platform for rare event searches. We measured using a sample consisting of a custom-made 445 mL cylindrical Teflon container equipped with two 3-inch photomultiplier tubes. Analyses show activity levels of $0.091 \pm 0.042$ mBq/kg for $^{238}$U and $0.012 \pm 0.007$ mBq/kg for $^{232}$Th. |
| title | Radiopurity measurements of liquid scintillator for the COSINE-100 Upgrade |
| topic | Instrumentation and Detectors High Energy Physics - Experiment |
| url | https://arxiv.org/abs/2411.05256 |