タムラ タダヒサ   Tamura Tadahisa
  田村 忠久
   所属   神奈川大学  工学部 物理学教室
    神奈川大学大学院  工学研究科 工学専攻(応用物理学領域)
   職種   教授
言語種別 日本語
発行・発表の年月 2011/08
形態種別 学術雑誌
標題 Position sensitive detector at the upgraded LHCf detector
執筆形態 共著
掲載誌名 32ND INTERNATIONAL COSMIC RAY CONFERENCE, BEIJING 2011
巻・号・頁 5,19-22頁
著者・共著者 T. SUZUKI, O. ADRIANI, L. BONECHI, M. BONGI, G. CASTELLINI, R. D ’ALESSANDRO, K. FUKATSU, M. HAGUENAUER, Y. ITOW, K. KASAHARA, K. KAWADE, T. MASE, K. MASUDA, H. MENJO, G.MITSUKA, Y. MURAKI, K. NODA, P. PAPINI, A.-L. PERROT, S. RICCIARINI, T. SAKO, Y. SHIMIZU, K. SUZUKI, K. TAKI, T. TAMURA, S. TORII1, A. TRICOMI, W. C. TURNER
概要 The LHC forward (LHCf) experiment is an experiment to measure the neutral particles emitted in the very
forward region of the collision point of LHC. Its goal is to provide data to discriminate the various hadronic interaction
models used in cosmic-ray physics. The first phase of the experiment has been achieved on July 2010 with center-of-mass
energy ps =7 TeV, and the first result has been submitted. The data analysis of data is still ongoing. The next phase is
planned on 2014 at ps = 14 TeV. An upgrade of the detector is necessary to cope with the radiaiton damage of our plastic
scintillator and the position sensitive scintillating fiber (SciFi) due to the higher beam intensity with the higher energy
than the 7 TeV case. For this purpose, GSO scintillator, which has a high radiation resistivity, has been chosen. Small
scaled GSO scintillators (GSO bars) have been manufactured to construct a position sensitive detector. The detector,
GSO bundle, consists of GSO bars in a single hodoscope plane. In this paper, we describe the expected performance of a
GSO bar system in order to replace SciFi. For this purpose, we made a single layer hodoscope consisting of several GSO
bars and performed tests using low-energy heavy ion (Carbon) beam as well as cosmic ray muons. We discuss mainly the
position resolution and the simulated performance when the system is applied to cascade showers.