Speakers
Norbert Novitzky
(ORNL)
Norbert Novitzky
(University of Tsukuba)
Description
The Electron Ion Collider (EIC) is the next Nuclear Physics flagship experiment to be constructed at Brookhaven National Lab over the next decade. The EPIC detector will be the first experiment at the EIC dedicated to detailed studies of nuclear structure in electron-proton and electron-ion collisions.
The ambitious physics program of the EIC requires a high performance hadronic calorimetry system in the hadron-going “forward” region. Accurate jet measurements are crucial to reconstruct the full 3D nucleon tomography and to study the gluon saturation region. The main goal of the Longitudinally segmented forward HCal (LFHCAL) is measuring the energies of jets and distinguishing between overlapping jet depositions to high accuracy in the jet energy range up to 120 GeV.
LFHCAL is designed as a plastic scintillator-steel sandwich calorimeter read out by silicon photomultipliers. The last ten layers of the LFHCAL are planned with Tungsten absorbers to increase the effective depth of the LFHCAL to 6.9 nuclear interaction lengths \lambda_\pi. The plastic scintillator is transversely segmented into 5x5cm^2 tiles. The readout of these tiles is longitudinally separated into seven separately read out sub-towers.
To reduce R&D cost and risks, we are investigating producing the required plastic scintillator tiles by injection molding instead of the labor intensive machining of individual tiles. For further cost reduction, the readout of the almost 100000 individual SiPM channels is planned to be performed with HGCROC ASICs as developed for the high granularity endcap calorimeter of the CMS experiment upgrade.
This talk will present the current status as well as ongoing and future R&D of the LFHCAL for the EPIC experiment.
Primary authors
Norbert Novitzky
(ORNL)
Norbert Novitzky
(University of Tsukuba)
