Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1831532 | Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment | 2006 | 4 Pages |
Abstract
Physics goals of the STAR Experiment at RHIC in recent (and future) years drive the need to operate the STAR TPC at ever higher luminosities, leading to increased ionization levels in the TPC gas. The resulting ionic space charge introduces field distortions in the detector which impact tracking performance. Further complications arise from ionic charge leakage into the main TPC volume from the high gain anode region. STAR has implemented corrections for these distortions based on measures of luminosity, which we present here. Additionally, we highlight a novel approach to applying the corrections on an event-by-event basis applicable in conditions of rapidly varying ionization sources.
Related Topics
Physical Sciences and Engineering
Physics and Astronomy
Instrumentation
Authors
G. Van Buren, L. Didenko, J. Dunlop, Y. Fisyak, J. Lauret, A. Lebedev, B. Stringfellow, J.H. Thomas, H. Wieman,