A Compact TPC for the sPHENIX Experiment
Henry T. Klest (for the sPHENIX Collaboration)
TL;DR
This paper presents a compact Time Projection Chamber (TPC) designed for the sPHENIX experiment at RHIC, featuring optimized gas mixture, zigzag readout pads, and advanced electronics to achieve high-resolution tracking in high-rate heavy-ion collisions.
Contribution
It introduces a novel, compact TPC design with optimized components tailored for the sPHENIX experiment's specific measurement requirements.
Findings
Achieved sufficient position resolution for target observables.
Demonstrated effective operation with high event rate environment.
Validated design through test beam data.
Abstract
The sPHENIX detector to be installed at RHIC in 2022 is designed to precisely measure jets, jet correlations, and dilepton pairs in heavy-ion collisions. With these measurements in mind, sPHENIX will employ a compact TPC covering 20cm < r < 78 cm and |{\eta}| < 1.1 as the central tracker. Utilizing an optimized Ar-CF4 gas mixture, zigzag readout pads, a 1.4 T solenoid, and a modified SAMPA chip for streaming readout, the TPC will provide a position resolution sufficient for measuring target observables in a high event rate environment. The design of the TPC will be discussed, as well as test beam data and potential applicability to the EIC
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