Development of the upgraded LHCf calorimeter with Gd2SiO5 (GSO) scintillators.

2 Jun 2014, 17:50
20m
Berlagezaal (Beurs van Berlage)

Berlagezaal

Beurs van Berlage

Oral Sensors: 1a) Calorimetry I.a Calorimetry

Speaker

Mr Yuya Makino (STEL, Nagoya University)

Description

The Large Hadron Collider forward (LHCf) experiment is designed to measure the hadronic production cross sections of neutral particles emitted in the very forward angles in p-p collision at the LHC. LHCf has reported energy spectra of forward photons and neutral pions at √s = 900 GeV and 7 TeV proton-proton collisions measured at LHC. Forward spectra can be helpful in verifying cosmic ray interaction models. The next operation in 2015 is expected under much higher radiation dose. Therefore, we are upgrading the detectors, especially their scintillators, to be radiation harder one. Plastic scintillator layers and Scintillating Fiber (SciFi) tracker are replaced with GSO layers and fine GSO hodoscope respectively. Basic properties of new sensors of the upgraded detector are measured by 400 MeV/n carbon beams at the Heavy Ion Medical Accelerator in Chiba (HIMAC) in June, 2012. Energy resolution and position resolution of the upgraded detector are evaluated by using electron beams of 50-250 GeV at Super Proton Synchrotron (SPS) in summer, 2012. The results are understood by Monte Carlo simulations and are good enough for the requirements of the LHCf experiment.

Primary author

Mr Yuya Makino (STEL, Nagoya University)

Co-authors

Alessia Tricomi (Universita e INFN (IT)) Angeles Faus-Golfe (Instituto de Fisica Corpuscular (IFIC) UV-CSIC) Anne-Laure Perrot (CERN) Eri Matsubayashi (STEL, Nagoya University) Gaku Mitsuka (Nagoya University (JP)) Guido Castellini (Dipartimento di Fisica) Hiroaki Menjo (Nagoya University (JP)) J. Velasco (IFIC, Centro Mixto CSIC-UVEG, Spain) Katsuaki Kasahara (Waseda University (JP)) Kenji Yoshida (Shibaura Institute of Technology (JP)) Kentaro Kawade (N) Dr Kimiaki Masuda (STEL, Nagoya University) Lel D'Alessandro (Universita e INFN (IT)) Lorenzo Bonechi (Istituto Nazionale di Fisica Nucleare (INFN)) M. Grandi (Universita e INFN (IT)) Marina Delprete (Universita e INFN (IT)) Massimo Bongi (Universita e INFN (IT)) Maurice Haguenauer (Ecole Polytechnique Federale de Lausanne (CH)) Dr Nobuyuki Sakurai (STEL, Nagoya University) Oscar Adriani (Dipartimento di Fisica) Paolo Papini (INFN sezione di Firenze) Qidong Zhou (STEL, Nagoya University) Dr Sergio Bruno Ricciarini (INFN) Shoji Torii (Waseda University (JP)) Tadahisa Tamura (Kanagawa University (JP)) Takashi Sako (Nagoya University (JP)) Takuya Suzuki (Waseda University) William C Turner (Lawrence Berkeley Laboratory) Prof. Yasushi Muraki (STEL, Nagoya University) Prof. Yoshitaka Itow (STEL, Nagoya University) Yuki Shimizu (Waseda University) Yuki Sugiura (STEL, Nagoya University) Dr Yutaka Matsubara (STEL, Nagoya University)

Presentation Materials