A measurement of the time profile of scintillation induced by low energy gamma-rays in liquid xenon with the XMASS-I detector

H. Takiya; K. Abe; K. Hiraide; K. Ichimura; Y. Kishimoto; K. Kobayashi; M. Kobayashi; S. Moriyama; M. Nakahata; T. Norita; H. Ogawa; H. Sekiya; O. Takachio; A. Takeda; S. Tasaka; M. Yamashita; B. S. Yang; N. Y. Kim; Y. D. Kim; Y. Itow; R. Kegasa; K. Kobayashi; K. Masuda; K. Fushimi; K. Martens; Y. Suzuki; R. Fujita; K. Hosokawa; K. Miuchi; N. Oka; Y. Onishi; Y. Takeuchi; Y. H. Kim; J. S. Lee; K. B. Lee; M. K. Lee; Y. Fukuda; K. Nishijima; S. Nakamura; Collaboration XMASS Collaboration

doi:10.1016/j.nima.2016.08.014

A measurement of the time profile of scintillation induced by low energy gamma-rays in liquid xenon with the XMASS-I detector

H. Takiya, K. Abe, K. Hiraide, K. Ichimura, Y. Kishimoto, K. Kobayashi, M. Kobayashi, S. Moriyama, M. Nakahata, T. Norita, H. Ogawa, H. Sekiya, O. Takachio, A. Takeda, S. Tasaka, M. Yamashita, B. S. Yang, N. Y. Kim, Y. D. Kim, Y. ItowR. Kegasa, K. Kobayashi, K. Masuda, K. Fushimi, K. Martens, Y. Suzuki, R. Fujita, K. Hosokawa, K. Miuchi, N. Oka, Y. Onishi, Y. Takeuchi, Y. H. Kim, J. S. Lee, K. B. Lee, M. K. Lee, Y. Fukuda, K. Nishijima, S. Nakamura, Collaboration XMASS Collaboration

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

18 Citations (Scopus)

Abstract

We report the measurement of the emission time profile of scintillation from gamma-ray induced events in the XMASS-I 832 kg liquid xenon scintillation detector. Decay time constant was derived from a comparison of scintillation photon timing distributions between the observed data and simulated samples in order to take into account optical processes such as absorption and scattering in liquid xenon. Calibration data of radioactive sources, ⁵⁵Fe, ²⁴¹Am, and ⁵⁷Co were used to obtain the decay time constant. Assuming two decay components, τ₁ and τ₂, the decay time constant τ₂ increased from 27.9 ns to 37.0 ns as the gamma-ray energy increased from 5.9 keV to 122 keV. The accuracy of the measurement was better than 1.5 ns at all energy levels. A fast decay component with τ₁∼2ns was necessary to reproduce data. Energy dependencies of τ₂ and the fraction of the fast decay component were studied as a function of the kinetic energy of electrons induced by gamma-rays. The obtained data almost reproduced previously reported results and extended them to the lower energy region relevant to direct dark matter searches.

Original language	English
Pages (from-to)	192-196
Number of pages	5
Journal	Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
Volume	834
DOIs	https://doi.org/10.1016/j.nima.2016.08.014
Publication status	Published - 2016 Oct 21
Externally published	Yes

Keywords

Decay time constant
Liquid xenon
Scintillator

ASJC Scopus subject areas

Nuclear and High Energy Physics
Instrumentation

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10.1016/j.nima.2016.08.014

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Takiya, H., Abe, K., Hiraide, K., Ichimura, K., Kishimoto, Y., Kobayashi, K., Kobayashi, M., Moriyama, S., Nakahata, M., Norita, T., Ogawa, H., Sekiya, H., Takachio, O., Takeda, A., Tasaka, S., Yamashita, M., Yang, B. S., Kim, N. Y., Kim, Y. D., ... XMASS Collaboration, C. (2016). A measurement of the time profile of scintillation induced by low energy gamma-rays in liquid xenon with the XMASS-I detector. Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, 834, 192-196. https://doi.org/10.1016/j.nima.2016.08.014

A measurement of the time profile of scintillation induced by low energy gamma-rays in liquid xenon with the XMASS-I detector. / Takiya, H.; Abe, K.; Hiraide, K. et al.
In: Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 834, 21.10.2016, p. 192-196.

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

Takiya, H, Abe, K, Hiraide, K, Ichimura, K, Kishimoto, Y, Kobayashi, K, Kobayashi, M, Moriyama, S, Nakahata, M, Norita, T, Ogawa, H, Sekiya, H, Takachio, O, Takeda, A, Tasaka, S, Yamashita, M, Yang, BS, Kim, NY, Kim, YD, Itow, Y, Kegasa, R, Kobayashi, K, Masuda, K, Fushimi, K, Martens, K, Suzuki, Y, Fujita, R, Hosokawa, K, Miuchi, K, Oka, N, Onishi, Y, Takeuchi, Y, Kim, YH, Lee, JS, Lee, KB, Lee, MK, Fukuda, Y, Nishijima, K, Nakamura, S & XMASS Collaboration, C 2016, 'A measurement of the time profile of scintillation induced by low energy gamma-rays in liquid xenon with the XMASS-I detector', Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, vol. 834, pp. 192-196. https://doi.org/10.1016/j.nima.2016.08.014

Takiya H, Abe K, Hiraide K, Ichimura K, Kishimoto Y, Kobayashi K et al. A measurement of the time profile of scintillation induced by low energy gamma-rays in liquid xenon with the XMASS-I detector. Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 2016 Oct 21;834:192-196. doi: 10.1016/j.nima.2016.08.014

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title = "A measurement of the time profile of scintillation induced by low energy gamma-rays in liquid xenon with the XMASS-I detector",

abstract = "We report the measurement of the emission time profile of scintillation from gamma-ray induced events in the XMASS-I 832 kg liquid xenon scintillation detector. Decay time constant was derived from a comparison of scintillation photon timing distributions between the observed data and simulated samples in order to take into account optical processes such as absorption and scattering in liquid xenon. Calibration data of radioactive sources, 55Fe, 241Am, and 57Co were used to obtain the decay time constant. Assuming two decay components, τ1 and τ2, the decay time constant τ2 increased from 27.9 ns to 37.0 ns as the gamma-ray energy increased from 5.9 keV to 122 keV. The accuracy of the measurement was better than 1.5 ns at all energy levels. A fast decay component with τ1∼2ns was necessary to reproduce data. Energy dependencies of τ2 and the fraction of the fast decay component were studied as a function of the kinetic energy of electrons induced by gamma-rays. The obtained data almost reproduced previously reported results and extended them to the lower energy region relevant to direct dark matter searches.",

keywords = "Decay time constant, Liquid xenon, Scintillator",

author = "H. Takiya and K. Abe and K. Hiraide and K. Ichimura and Y. Kishimoto and K. Kobayashi and M. Kobayashi and S. Moriyama and M. Nakahata and T. Norita and H. Ogawa and H. Sekiya and O. Takachio and A. Takeda and S. Tasaka and M. Yamashita and Yang, {B. S.} and Kim, {N. Y.} and Kim, {Y. D.} and Y. Itow and R. Kegasa and K. Kobayashi and K. Masuda and K. Fushimi and K. Martens and Y. Suzuki and R. Fujita and K. Hosokawa and K. Miuchi and N. Oka and Y. Onishi and Y. Takeuchi and Kim, {Y. H.} and Lee, {J. S.} and Lee, {K. B.} and Lee, {M. K.} and Y. Fukuda and K. Nishijima and S. Nakamura and {XMASS Collaboration}, Collaboration",

note = "Funding Information: We gratefully acknowledge the cooperation of Kamioka Mining and Smelting Company. This work was supported by the Japanese Ministry of Education, Culture, Sports, Science and Technology, Grant-in-Aid for Scientific Research, JSPS KAKENHI Grant Numbers, 19GS0204 and 26104004 , and partially by the National Research Foundation of Korea Grant funded by the Korean Government ( NRF-2011–220-C00006 ). Publisher Copyright: {\textcopyright} 2016 Elsevier B.V.",

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doi = "10.1016/j.nima.2016.08.014",

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volume = "834",

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T1 - A measurement of the time profile of scintillation induced by low energy gamma-rays in liquid xenon with the XMASS-I detector

AU - Takiya, H.

AU - Abe, K.

AU - Hiraide, K.

AU - Ichimura, K.

AU - Kishimoto, Y.

AU - Kobayashi, K.

AU - Kobayashi, M.

AU - Moriyama, S.

AU - Nakahata, M.

AU - Norita, T.

AU - Ogawa, H.

AU - Sekiya, H.

AU - Takachio, O.

AU - Takeda, A.

AU - Tasaka, S.

AU - Yamashita, M.

AU - Yang, B. S.

AU - Kim, N. Y.

AU - Kim, Y. D.

AU - Itow, Y.

AU - Kegasa, R.

AU - Kobayashi, K.

AU - Masuda, K.

AU - Fushimi, K.

AU - Martens, K.

AU - Suzuki, Y.

AU - Fujita, R.

AU - Hosokawa, K.

AU - Miuchi, K.

AU - Oka, N.

AU - Onishi, Y.

AU - Takeuchi, Y.

AU - Kim, Y. H.

AU - Lee, J. S.

AU - Lee, K. B.

AU - Lee, M. K.

AU - Fukuda, Y.

AU - Nishijima, K.

AU - Nakamura, S.

AU - XMASS Collaboration, Collaboration

N1 - Funding Information: We gratefully acknowledge the cooperation of Kamioka Mining and Smelting Company. This work was supported by the Japanese Ministry of Education, Culture, Sports, Science and Technology, Grant-in-Aid for Scientific Research, JSPS KAKENHI Grant Numbers, 19GS0204 and 26104004 , and partially by the National Research Foundation of Korea Grant funded by the Korean Government ( NRF-2011–220-C00006 ). Publisher Copyright: © 2016 Elsevier B.V.

PY - 2016/10/21

Y1 - 2016/10/21

N2 - We report the measurement of the emission time profile of scintillation from gamma-ray induced events in the XMASS-I 832 kg liquid xenon scintillation detector. Decay time constant was derived from a comparison of scintillation photon timing distributions between the observed data and simulated samples in order to take into account optical processes such as absorption and scattering in liquid xenon. Calibration data of radioactive sources, 55Fe, 241Am, and 57Co were used to obtain the decay time constant. Assuming two decay components, τ1 and τ2, the decay time constant τ2 increased from 27.9 ns to 37.0 ns as the gamma-ray energy increased from 5.9 keV to 122 keV. The accuracy of the measurement was better than 1.5 ns at all energy levels. A fast decay component with τ1∼2ns was necessary to reproduce data. Energy dependencies of τ2 and the fraction of the fast decay component were studied as a function of the kinetic energy of electrons induced by gamma-rays. The obtained data almost reproduced previously reported results and extended them to the lower energy region relevant to direct dark matter searches.

AB - We report the measurement of the emission time profile of scintillation from gamma-ray induced events in the XMASS-I 832 kg liquid xenon scintillation detector. Decay time constant was derived from a comparison of scintillation photon timing distributions between the observed data and simulated samples in order to take into account optical processes such as absorption and scattering in liquid xenon. Calibration data of radioactive sources, 55Fe, 241Am, and 57Co were used to obtain the decay time constant. Assuming two decay components, τ1 and τ2, the decay time constant τ2 increased from 27.9 ns to 37.0 ns as the gamma-ray energy increased from 5.9 keV to 122 keV. The accuracy of the measurement was better than 1.5 ns at all energy levels. A fast decay component with τ1∼2ns was necessary to reproduce data. Energy dependencies of τ2 and the fraction of the fast decay component were studied as a function of the kinetic energy of electrons induced by gamma-rays. The obtained data almost reproduced previously reported results and extended them to the lower energy region relevant to direct dark matter searches.

KW - Decay time constant

KW - Liquid xenon

KW - Scintillator

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JO - Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment

JF - Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment

ER -

A measurement of the time profile of scintillation induced by low energy gamma-rays in liquid xenon with the XMASS-I detector

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