Measurement of muon annual modulation and muon-induced phosphorescence in NaI(Tl) crystals with DM-Ice17
We report the measurement of muons and muon-induced phosphorescence in DM-Ice17, a NaI(Tl) direct detection dark matter experiment at the South Pole. Muon interactions in the crystal are identified by their observed pulse shape and large energy depositions. The measured muon rate in DM-Ice17 is 2.93...
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Online Access: | http://www.osti.gov/servlets/purl/1249199 https://www.osti.gov/biblio/1249199 https://doi.org/10.1103/PhysRevD.93.042001 |
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ftosti:oai:osti.gov:1249199 2023-07-30T04:06:53+02:00 Measurement of muon annual modulation and muon-induced phosphorescence in NaI(Tl) crystals with DM-Ice17 Cherwinka, J. Grant, D. Halzen, F. Heeger, K. M. Hsu, L. Hubbard, A. J. F. Karle, A. Kauer, M. Kudryavtsev, V. A. Lim, K. E. Macdonald, C. Maruyama, R. H. Paling, S. Pettus, W. Pierpoint, Z. P. Reilly, B. N. Robinson, M. Sandstrom, P. Spooner, N. J.C. Telfer, S. Yang, L. 2022-05-23 application/pdf http://www.osti.gov/servlets/purl/1249199 https://www.osti.gov/biblio/1249199 https://doi.org/10.1103/PhysRevD.93.042001 unknown http://www.osti.gov/servlets/purl/1249199 https://www.osti.gov/biblio/1249199 https://doi.org/10.1103/PhysRevD.93.042001 doi:10.1103/PhysRevD.93.042001 79 ASTRONOMY AND ASTROPHYSICS 46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY 72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS 2022 ftosti https://doi.org/10.1103/PhysRevD.93.042001 2023-07-11T09:05:59Z We report the measurement of muons and muon-induced phosphorescence in DM-Ice17, a NaI(Tl) direct detection dark matter experiment at the South Pole. Muon interactions in the crystal are identified by their observed pulse shape and large energy depositions. The measured muon rate in DM-Ice17 is 2.93±0.04 μ/crystal/day with a modulation amplitude of 12.3±1.7%, consistent with expectation. Following muon interactions, we observe long-lived phosphorescence in the NaI(Tl) crystals with a decay time of 5.5±0.5 s. The prompt energy deposited by a muon is correlated to the amount of delayed phosphorescence, the brightest of which consist of tens of millions of photons. These photons are distributed over tens of seconds with a rate and arrival timing that do not mimic a scintillation signal above 2 keV ee . Furthermore, while the properties of phosphorescence vary among individual crystals, the annually modulating signal observed by DAMA cannot be accounted for by phosphorescence with the characteristics observed in DM-Ice17. Other/Unknown Material South pole SciTec Connect (Office of Scientific and Technical Information - OSTI, U.S. Department of Energy) South Pole Physical Review D 93 4 |
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SciTec Connect (Office of Scientific and Technical Information - OSTI, U.S. Department of Energy) |
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language |
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79 ASTRONOMY AND ASTROPHYSICS 46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY 72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS |
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79 ASTRONOMY AND ASTROPHYSICS 46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY 72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS Cherwinka, J. Grant, D. Halzen, F. Heeger, K. M. Hsu, L. Hubbard, A. J. F. Karle, A. Kauer, M. Kudryavtsev, V. A. Lim, K. E. Macdonald, C. Maruyama, R. H. Paling, S. Pettus, W. Pierpoint, Z. P. Reilly, B. N. Robinson, M. Sandstrom, P. Spooner, N. J.C. Telfer, S. Yang, L. Measurement of muon annual modulation and muon-induced phosphorescence in NaI(Tl) crystals with DM-Ice17 |
topic_facet |
79 ASTRONOMY AND ASTROPHYSICS 46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY 72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS |
description |
We report the measurement of muons and muon-induced phosphorescence in DM-Ice17, a NaI(Tl) direct detection dark matter experiment at the South Pole. Muon interactions in the crystal are identified by their observed pulse shape and large energy depositions. The measured muon rate in DM-Ice17 is 2.93±0.04 μ/crystal/day with a modulation amplitude of 12.3±1.7%, consistent with expectation. Following muon interactions, we observe long-lived phosphorescence in the NaI(Tl) crystals with a decay time of 5.5±0.5 s. The prompt energy deposited by a muon is correlated to the amount of delayed phosphorescence, the brightest of which consist of tens of millions of photons. These photons are distributed over tens of seconds with a rate and arrival timing that do not mimic a scintillation signal above 2 keV ee . Furthermore, while the properties of phosphorescence vary among individual crystals, the annually modulating signal observed by DAMA cannot be accounted for by phosphorescence with the characteristics observed in DM-Ice17. |
author |
Cherwinka, J. Grant, D. Halzen, F. Heeger, K. M. Hsu, L. Hubbard, A. J. F. Karle, A. Kauer, M. Kudryavtsev, V. A. Lim, K. E. Macdonald, C. Maruyama, R. H. Paling, S. Pettus, W. Pierpoint, Z. P. Reilly, B. N. Robinson, M. Sandstrom, P. Spooner, N. J.C. Telfer, S. Yang, L. |
author_facet |
Cherwinka, J. Grant, D. Halzen, F. Heeger, K. M. Hsu, L. Hubbard, A. J. F. Karle, A. Kauer, M. Kudryavtsev, V. A. Lim, K. E. Macdonald, C. Maruyama, R. H. Paling, S. Pettus, W. Pierpoint, Z. P. Reilly, B. N. Robinson, M. Sandstrom, P. Spooner, N. J.C. Telfer, S. Yang, L. |
author_sort |
Cherwinka, J. |
title |
Measurement of muon annual modulation and muon-induced phosphorescence in NaI(Tl) crystals with DM-Ice17 |
title_short |
Measurement of muon annual modulation and muon-induced phosphorescence in NaI(Tl) crystals with DM-Ice17 |
title_full |
Measurement of muon annual modulation and muon-induced phosphorescence in NaI(Tl) crystals with DM-Ice17 |
title_fullStr |
Measurement of muon annual modulation and muon-induced phosphorescence in NaI(Tl) crystals with DM-Ice17 |
title_full_unstemmed |
Measurement of muon annual modulation and muon-induced phosphorescence in NaI(Tl) crystals with DM-Ice17 |
title_sort |
measurement of muon annual modulation and muon-induced phosphorescence in nai(tl) crystals with dm-ice17 |
publishDate |
2022 |
url |
http://www.osti.gov/servlets/purl/1249199 https://www.osti.gov/biblio/1249199 https://doi.org/10.1103/PhysRevD.93.042001 |
geographic |
South Pole |
geographic_facet |
South Pole |
genre |
South pole |
genre_facet |
South pole |
op_relation |
http://www.osti.gov/servlets/purl/1249199 https://www.osti.gov/biblio/1249199 https://doi.org/10.1103/PhysRevD.93.042001 doi:10.1103/PhysRevD.93.042001 |
op_doi |
https://doi.org/10.1103/PhysRevD.93.042001 |
container_title |
Physical Review D |
container_volume |
93 |
container_issue |
4 |
_version_ |
1772819845475205120 |