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 英語
発行・発表の年月 2014/06
形態種別 学術雑誌
査読 査読あり
標題 Development of the upgraded LHCf calorimeter with Gd2SiO5 (GSO) scintillators
執筆形態 共著
掲載誌名 Proceedings of Technology and Instrumentation in Particle Physics 2014, Amsterdam, the Netherlands
著者・共著者 Y.Makino, O.Adriani, E.Berti, L.Bonechi, M.Bongi, G.Castellini, R.D'Alessandro, M.Del Prete, M.Haguenauer, Y.Itow, K.Kasahara, K.Masuda, E.Matsubayashi, H.Menjo, G.Mitsuka, Y.Muraki, P.Papini, A-L.Perrot, S.Ricciarini, T.Sako, N.Sakurai, Y.Sugiura, T.Suzuki, T.Tamura, A.Tiberio, S.Torii, A.Tricomi, W.C.Turner and Q.D.Zhou
概要 The Large Hadron Collider forward (LHCf) experiment was motivated to understand the hadronic interaction relevant to the cosmic-ray air shower development. LHCf has installed compact calorimeters at the LHC and observed neutral particles emitted around zero degree during 0.9, 2.76 and 7 TeV pp collisions and 5 TeV pPb collisions. Since the next operation in 2015 is expected under much higher radiation dose, we have upgraded the detectors, especially their scintillators, to be radiation harder. In this paper, we report the performance of the new maging sensor, GSO-bar hodoscope tested by heavy-ion beam and 50-250 GeV lectron beams. As the result, shower-peak position resolution of 123 mm for 100 GeV electron induced showers was achieved that is satisfactory for our physics goal.