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

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arxiv 1008.4077 v2 pith:JQZKTU4Y submitted 2010-08-24 physics.ins-det hep-ex

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
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K. Nishikawa T. Ozaki K. Sakashita K. Suzuki S.Y. Suzuki K. Tashiro K. Yamamoto M. Yokoyama
This is my paper
classification physics.ins-det hep-ex
keywords monitormuonbeamneutrinodesigndirectionexperimentintensity
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This article describes the design and performance of the muon monitor for the T2K (Tokaito-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.

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