Large-area scintillator hodoscope with 50 ps timing resolution onboard BESS

Y. Shikaze, S. Orito, T. Mitsui, Koji Yoshimura, H. Matsumoto, H. Matsunaga, M. Nozaki, T. Sonoda, I. Ueda, T. Yoshida

Research output: Contribution to journalArticle

31 Citations (Scopus)

Abstract

We describe the design and performance of a large-area scintillator hodoscope onboard the BESS rigidity spectrometer; an instrument with an acceptance of 0.3 m2 sr. The hodoscope is configured such that 10 and 12 counters are, respectively, situated in upper and lower layers. Each counter is viewed from its ends by 2.5 in. fine-mesh photomultiplier tubes placed in a stray magnetic field of 0.2 T. Various beam-test data are presented. Use of cosmic-ray muons at ground-level confirmed 50 ps timing resolution for each layer, giving an overall time-of-flight resolution of 70 ps rms using a pure Gaussian-resolution function. Comparison with previous measurements on a similar scintillator hodoscope indicates good agreement with the scaling law that timing resolution is proportional to 1/√Npc, where Npc is the effective number of photoelectrons.

Original languageEnglish
Pages (from-to)596-606
Number of pages11
JournalNuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
Volume455
Issue number3
DOIs
Publication statusPublished - Dec 11 2000
Externally publishedYes

Fingerprint

BESS (satellite)
hodoscopes
Phosphors
scintillation counters
time measurement
Cosmic rays
Scaling laws
Photomultipliers
Photoelectrons
Rigidity
Spectrometers
counters
Magnetic fields
photomultiplier tubes
rigidity
acceptability
scaling laws
mesh
muons
cosmic rays

ASJC Scopus subject areas

  • Instrumentation
  • Nuclear and High Energy Physics

Cite this

Large-area scintillator hodoscope with 50 ps timing resolution onboard BESS. / Shikaze, Y.; Orito, S.; Mitsui, T.; Yoshimura, Koji; Matsumoto, H.; Matsunaga, H.; Nozaki, M.; Sonoda, T.; Ueda, I.; Yoshida, T.

In: Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 455, No. 3, 11.12.2000, p. 596-606.

Research output: Contribution to journalArticle

Shikaze, Y. ; Orito, S. ; Mitsui, T. ; Yoshimura, Koji ; Matsumoto, H. ; Matsunaga, H. ; Nozaki, M. ; Sonoda, T. ; Ueda, I. ; Yoshida, T. / Large-area scintillator hodoscope with 50 ps timing resolution onboard BESS. In: Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 2000 ; Vol. 455, No. 3. pp. 596-606.
@article{08690b19888e4d00a5460115c35ae61e,
title = "Large-area scintillator hodoscope with 50 ps timing resolution onboard BESS",
abstract = "We describe the design and performance of a large-area scintillator hodoscope onboard the BESS rigidity spectrometer; an instrument with an acceptance of 0.3 m2 sr. The hodoscope is configured such that 10 and 12 counters are, respectively, situated in upper and lower layers. Each counter is viewed from its ends by 2.5 in. fine-mesh photomultiplier tubes placed in a stray magnetic field of 0.2 T. Various beam-test data are presented. Use of cosmic-ray muons at ground-level confirmed 50 ps timing resolution for each layer, giving an overall time-of-flight resolution of 70 ps rms using a pure Gaussian-resolution function. Comparison with previous measurements on a similar scintillator hodoscope indicates good agreement with the scaling law that timing resolution is proportional to 1/√Npc, where Npc is the effective number of photoelectrons.",
author = "Y. Shikaze and S. Orito and T. Mitsui and Koji Yoshimura and H. Matsumoto and H. Matsunaga and M. Nozaki and T. Sonoda and I. Ueda and T. Yoshida",
year = "2000",
month = "12",
day = "11",
doi = "10.1016/S0168-9002(00)00571-4",
language = "English",
volume = "455",
pages = "596--606",
journal = "Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment",
issn = "0168-9002",
publisher = "Elsevier",
number = "3",

}

TY - JOUR

T1 - Large-area scintillator hodoscope with 50 ps timing resolution onboard BESS

AU - Shikaze, Y.

AU - Orito, S.

AU - Mitsui, T.

AU - Yoshimura, Koji

AU - Matsumoto, H.

AU - Matsunaga, H.

AU - Nozaki, M.

AU - Sonoda, T.

AU - Ueda, I.

AU - Yoshida, T.

PY - 2000/12/11

Y1 - 2000/12/11

N2 - We describe the design and performance of a large-area scintillator hodoscope onboard the BESS rigidity spectrometer; an instrument with an acceptance of 0.3 m2 sr. The hodoscope is configured such that 10 and 12 counters are, respectively, situated in upper and lower layers. Each counter is viewed from its ends by 2.5 in. fine-mesh photomultiplier tubes placed in a stray magnetic field of 0.2 T. Various beam-test data are presented. Use of cosmic-ray muons at ground-level confirmed 50 ps timing resolution for each layer, giving an overall time-of-flight resolution of 70 ps rms using a pure Gaussian-resolution function. Comparison with previous measurements on a similar scintillator hodoscope indicates good agreement with the scaling law that timing resolution is proportional to 1/√Npc, where Npc is the effective number of photoelectrons.

AB - We describe the design and performance of a large-area scintillator hodoscope onboard the BESS rigidity spectrometer; an instrument with an acceptance of 0.3 m2 sr. The hodoscope is configured such that 10 and 12 counters are, respectively, situated in upper and lower layers. Each counter is viewed from its ends by 2.5 in. fine-mesh photomultiplier tubes placed in a stray magnetic field of 0.2 T. Various beam-test data are presented. Use of cosmic-ray muons at ground-level confirmed 50 ps timing resolution for each layer, giving an overall time-of-flight resolution of 70 ps rms using a pure Gaussian-resolution function. Comparison with previous measurements on a similar scintillator hodoscope indicates good agreement with the scaling law that timing resolution is proportional to 1/√Npc, where Npc is the effective number of photoelectrons.

UR - http://www.scopus.com/inward/record.url?scp=0034515237&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0034515237&partnerID=8YFLogxK

U2 - 10.1016/S0168-9002(00)00571-4

DO - 10.1016/S0168-9002(00)00571-4

M3 - Article

VL - 455

SP - 596

EP - 606

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

SN - 0168-9002

IS - 3

ER -