Summary: P-Terphenyl Deposited Quartz Plate Calorimeter
Prototype
U. Akgun, B. Bilki, E. A. Albayrak, P. Bruecken, K. Cankocak, W. Clarida, L. Cremaldi, F. Duru, A. Moeller, A.
Mestvirishvili, Y. Onel, F. Ozok, D. Sanders, N. Sonmez, J. Wetzel, D. Winn, T. Yetkin
Abstract­Due to an expected increase in radiation damage
under super-LHC conditions, we propose to substitute the
scintillator tiles in the original design of the CMS hadronic
endcap (HE) calorimeter with quartz plates. Quartz is proved to
be radiation hard by various tests, but 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 electromagnetic capabilities of the calorimeter
prototype as well as radiation damage results for p-Terphenyl.
I. INTRODUCTION
HE current design of "soon starting" Large Hadron Collider
(LHC) provides 14 TeV center of mass energy with p-p
collisions every 25 ns, and peak luminosity of L = 1034
cm-2

Source: Akgun, Ugur - Department of Physics and Astronomy, University of Iowa

Collections: Physics