TY - GEN
T1 - Position sensitive detector at the upgraded LHCf detector
AU - Suzuki, T.
AU - Adriani, O.
AU - Bonechi, L.
AU - Bongi, M.
AU - Castellini, G.
AU - D'Alessandro, R.
AU - Fukatsu, K.
AU - Haguenauer, M.
AU - Itow, Y.
AU - Kasahara, K.
AU - Kawade, K.
AU - Mase, T.
AU - Masuda, K.
AU - Menjo, H.
AU - Mitsuka, G.
AU - Muraki, Y.
AU - Noda, K.
AU - Papini, P.
AU - Perrot, A. L.
AU - Ricciarini, S.
AU - Sako, T.
AU - Shimizu, Y.
AU - Suzuki, K.
AU - Taki, K.
AU - Tamura, T.
AU - Torii, Shoji
AU - Tricomi, A.
AU - Turner, W. C.
PY - 2011
Y1 - 2011
N2 - 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 vs =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 vs = 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.
AB - 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 vs =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 vs = 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.
KW - GSO scintillator
KW - Hadronic interaction
KW - High-energy cosmic-ray
KW - LHC
KW - Position sensitive detector
UR - http://www.scopus.com/inward/record.url?scp=84899540686&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84899540686&partnerID=8YFLogxK
U2 - 10.7529/ICRC2011/V05/0264
DO - 10.7529/ICRC2011/V05/0264
M3 - Conference contribution
AN - SCOPUS:84899540686
VL - 5
SP - 19
EP - 22
BT - Proceedings of the 32nd International Cosmic Ray Conference, ICRC 2011
PB - Institute of High Energy Physics
T2 - 32nd International Cosmic Ray Conference, ICRC 2011
Y2 - 11 August 2011 through 18 August 2011
ER -