2022 Student Research Conference:
35th Annual Student Research Conference

Determination Of Optimal Fused-Silica Fibers for the ATLAS Reaction Plane Detector


Josiah C. Shaw
Dr. Rasanjali Jayathissa and Dr. Riccardo Longo (University of Illinois Urbana-Champaign), Faculty Mentors

Within the proposed Reaction Plane Detector for the Zero Degree Calorimeter at ATLAS, the Toroidal LHC Apparatus developed by CERN, proton-proton collisions are analyzed through the transverse shower profile of absorbed Cherenkov radiation. High radiation and fiber construction limitations reduce the efficiency of photon absorption, leading to higher maintenance costs and lower reactor uptime. To improve photon absorption, a new fused-silica fiber must be chosen for the Reaction Plane Detector which maximizes efficiency without sacrificing radiation hardness. By simulating Cherenkov radiation inside three different fibers, efficiency values can be evaluated and an optimal candidate is chosen for Run 4. The FSHA6 fiber, produced by Molex and Heuraus, was found to have the highest simulated efficiency at 5.26.

Keywords: Simulation, Radiation Hardness, Fused-Silica Fiber, CERN

Topic(s):Physics

Presentation Type: Oral Presentation

Session: 307-3
Location: MG 1098
Time: 1:45

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