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Summary: P-TERPHENYL DEPOSITED QUARTZ PLATE CALORIMETER PROTOTYPE
U. Akgun(1), E. A. Albayrak(1), B. Bilki(1), K.Cankocak(1), W. Clarida(1), L. Cremaldi(2), F. Duru(1), A. Moeller(1), A. Mestvirishvili(1), Y. Onel(1), F. Ozok(1), N. Sonmez(3), J. Wetzel(1), D.Winn(4), T. Yetkin(1)
(1) The University of Iowa, Iowa City, IA 52242, USA
(2) The University of Mississippi, University, MS 38677, USA
(3) Ege University, Izmir, Turkey
(4) Fairfield University, Fairfield, CT 06430 USA.
ABSTRACT
Due to an expected increase in radiation under Super-LHC (SLHC)
conditions, we propose to substitute the scintillator tiles in the original de-
sign of the CMS hadronic endcap (HE) calorimeter with quartz plates [1].
Various tests proved that quartz is radiation hard [2]. However, the light
produced by quartz comes from Cerenkov process, and it is 100 times less
than scintillation photons. To enhance the light production we treated the
quartz plates with p-Terphenyl, and constructed a 20 layers calorimeter
prototype. Here, we report the test beam results for hadronic and elec-
tromagnetic capabilities of the calorimeter prototype as well as radiation
damage results for P-Terphenyl.
INTRODUCTION
The current design of Large Hadron Collider (LHC) provides 14 TeV
center of mass energy with p-p collisions at a peak luminosity of L = 1035
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