Cosmic-ray test of a time-of-flight detector for double-strangeness experiments at J-PARC

S. H. Kim; S. H. Hwang; J. K. Ahn; H. Ekawa; S. Hayakawa; B. Hong; K. Hosomi; K. Imai; M. H. Kim; J. Y. Lee; T. J. Moon; S. Y. Ryu; H. Sako; T. Takahashi; K. Tanida

doi:10.1016/j.nima.2015.05.046

Cosmic-ray test of a time-of-flight detector for double-strangeness experiments at J-PARC

S. H. Kim
, S. H. Hwang
, J. K. Ahn
, H. Ekawa
, S. Hayakawa
, B. Hong
, K. Hosomi
, K. Imai
, M. H. Kim
, J. Y. Lee
, T. J. Moon
, S. Y. Ryu
, H. Sako
, T. Takahashi
, K. Tanida

Department of Physics

Japan Atomic Energy Agency
Korea University
Kyoto University
The University of Osaka
Seoul National University
High Energy Accelerator Research Organization, Institute of Particle and Nuclear Physics

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

4 Scopus citations

Abstract

We have developed a time-of-flight (ToF) array consisting of 24 plastic scintillators for triggering and timing measurements in a series of planned experiments to study double-strangeness hadronic and nuclear systems at the K1.8 beamline of J-PARC. Each ToF scintillator is 180 cm long with a cross-section of 8×3^cm2, and is read out by H1949-50 photomultiplier tubes at both ends. The timing and attenuation properties of the scintillators are measured using cosmic-ray muons and β rays from ⁹⁰Sr. The cosmic-ray muon events are triggered by three pairs of 120-cm-long plastic scintillators, sandwiching the ToF array. The intrinsic time resolutions of the scintillators are estimated to be in the range 60-100 ps, which is adequate for reliable separation between π and K at 1.2GeV/c. The attenuation length is measured to be approximately 210 cm, which is half that for a bulk scintillator.

Original language	English
Pages (from-to)	39-44
Number of pages	6
Journal	Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
Volume	795
DOIs	https://doi.org/10.1016/j.nima.2015.05.046
State	Published - 10 Jun 2015

Keywords

Particle identification
Plastic scintillator
Time-of-flight detector

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Kim, S. H., Hwang, S. H., Ahn, J. K., Ekawa, H., Hayakawa, S., Hong, B., Hosomi, K., Imai, K., Kim, M. H., Lee, J. Y., Moon, T. J., Ryu, S. Y., Sako, H., Takahashi, T., & Tanida, K. (2015). Cosmic-ray test of a time-of-flight detector for double-strangeness experiments at J-PARC. Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, 795, 39-44. https://doi.org/10.1016/j.nima.2015.05.046

@article{4dff9695bc7744ae84f69b0ec474dd74,

title = "Cosmic-ray test of a time-of-flight detector for double-strangeness experiments at J-PARC",

abstract = "We have developed a time-of-flight (ToF) array consisting of 24 plastic scintillators for triggering and timing measurements in a series of planned experiments to study double-strangeness hadronic and nuclear systems at the K1.8 beamline of J-PARC. Each ToF scintillator is 180 cm long with a cross-section of 8×3cm2, and is read out by H1949-50 photomultiplier tubes at both ends. The timing and attenuation properties of the scintillators are measured using cosmic-ray muons and β rays from 90Sr. The cosmic-ray muon events are triggered by three pairs of 120-cm-long plastic scintillators, sandwiching the ToF array. The intrinsic time resolutions of the scintillators are estimated to be in the range 60-100 ps, which is adequate for reliable separation between π and K at 1.2GeV/c. The attenuation length is measured to be approximately 210 cm, which is half that for a bulk scintillator.",

keywords = "Particle identification, Plastic scintillator, Time-of-flight detector",

author = "Kim, \{S. H.\} and Hwang, \{S. H.\} and Ahn, \{J. K.\} and H. Ekawa and S. Hayakawa and B. Hong and K. Hosomi and K. Imai and Kim, \{M. H.\} and Lee, \{J. Y.\} and Moon, \{T. J.\} and Ryu, \{S. Y.\} and H. Sako and T. Takahashi and K. Tanida",

year = "2015",

month = jun,

day = "10",

doi = "10.1016/j.nima.2015.05.046",

language = "English",

volume = "795",

pages = "39--44",

journal = "Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment",

issn = "0168-9002",

publisher = "Elsevier B.V.",

}

Kim, SH, Hwang, SH, Ahn, JK, Ekawa, H, Hayakawa, S, Hong, B, Hosomi, K, Imai, K, Kim, MH, Lee, JY, Moon, TJ, Ryu, SY, Sako, H, Takahashi, T & Tanida, K 2015, 'Cosmic-ray test of a time-of-flight detector for double-strangeness experiments at J-PARC', Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, vol. 795, pp. 39-44. https://doi.org/10.1016/j.nima.2015.05.046

TY - JOUR

T1 - Cosmic-ray test of a time-of-flight detector for double-strangeness experiments at J-PARC

AU - Kim, S. H.

AU - Hwang, S. H.

AU - Ahn, J. K.

AU - Ekawa, H.

AU - Hayakawa, S.

AU - Hong, B.

AU - Hosomi, K.

AU - Imai, K.

AU - Kim, M. H.

AU - Lee, J. Y.

AU - Moon, T. J.

AU - Ryu, S. Y.

AU - Sako, H.

AU - Takahashi, T.

AU - Tanida, K.

PY - 2015/6/10

Y1 - 2015/6/10

N2 - We have developed a time-of-flight (ToF) array consisting of 24 plastic scintillators for triggering and timing measurements in a series of planned experiments to study double-strangeness hadronic and nuclear systems at the K1.8 beamline of J-PARC. Each ToF scintillator is 180 cm long with a cross-section of 8×3cm2, and is read out by H1949-50 photomultiplier tubes at both ends. The timing and attenuation properties of the scintillators are measured using cosmic-ray muons and β rays from 90Sr. The cosmic-ray muon events are triggered by three pairs of 120-cm-long plastic scintillators, sandwiching the ToF array. The intrinsic time resolutions of the scintillators are estimated to be in the range 60-100 ps, which is adequate for reliable separation between π and K at 1.2GeV/c. The attenuation length is measured to be approximately 210 cm, which is half that for a bulk scintillator.

AB - We have developed a time-of-flight (ToF) array consisting of 24 plastic scintillators for triggering and timing measurements in a series of planned experiments to study double-strangeness hadronic and nuclear systems at the K1.8 beamline of J-PARC. Each ToF scintillator is 180 cm long with a cross-section of 8×3cm2, and is read out by H1949-50 photomultiplier tubes at both ends. The timing and attenuation properties of the scintillators are measured using cosmic-ray muons and β rays from 90Sr. The cosmic-ray muon events are triggered by three pairs of 120-cm-long plastic scintillators, sandwiching the ToF array. The intrinsic time resolutions of the scintillators are estimated to be in the range 60-100 ps, which is adequate for reliable separation between π and K at 1.2GeV/c. The attenuation length is measured to be approximately 210 cm, which is half that for a bulk scintillator.

KW - Particle identification

KW - Plastic scintillator

KW - Time-of-flight detector

UR - https://www.scopus.com/pages/publications/84930630853

U2 - 10.1016/j.nima.2015.05.046

DO - 10.1016/j.nima.2015.05.046

M3 - Article

AN - SCOPUS:84930630853

SN - 0168-9002

VL - 795

SP - 39

EP - 44

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 -

Cosmic-ray test of a time-of-flight detector for double-strangeness experiments at J-PARC

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Keywords

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