Design and performance of the muon monitor for the T2K neutrino oscillation experiment

K. Matsuoka, A. K. Ichikawa, H. Kubo, K. Maeda, T. Maruyama, C. Matsumura, A. Murakami, T. Nakaya, K. Nishikawa, T. Ozaki, K. Sakashita, K. Suzuki, S. Y. Suzuki, K. Tashiro, K. Yamamoto, M. Yokoyama

Research output: Contribution to journalArticlepeer-review

18 Citations (Scopus)

Abstract

This article describes the design and performance of the muon monitor for the T2K (Tokai-to-Kamioka) long baseline neutrino oscillation experiment. The muon monitor consists of two types of detector arrays: ionization chambers and silicon PIN photodiodes. It measures the intensity and profile of muons produced, along with neutrinos, in the decay of pions. The measurement is sensitive to the intensity and direction of the neutrino beam. The linearity and stability of the detectors were measured in beam tests to be within 2.4% and 1.5%, respectively. Based on the test results, the precision of the beam direction measured by the muon monitor is expected to be 0.25 mrad.

Original languageEnglish
Pages (from-to)591-600
Number of pages10
JournalNuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
Volume624
Issue number3
DOIs
Publication statusPublished - 2010 Dec 21
Externally publishedYes

Keywords

  • Ionization chamber
  • J-PARC
  • Muon monitor
  • Neutrino beam
  • Silicon PIN photodiode
  • T2K

ASJC Scopus subject areas

  • Nuclear and High Energy Physics
  • Instrumentation

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