FastDIRC: a fast Monte Carlo and reconstruction algorithm for DIRC detectors
Author(s)Hardin, John Melvin; Williams, Michael
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FastDIRC is a novel fast Monte Carlo and reconstruction algorithm for DIRC detectors. A DIRC employs rectangular fused-silica bars both as Cherenkov radiators and as light guides. Cherenkov-photon imaging and time-of-propagation information are utilized by a DIRC to identify charged particles. GEANT4-based DIRC Monte Carlo simulations are extremely CPU intensive. The FastDIRC algorithm permits fully simulating a DIRC detector more than 10 000 times faster than using GEANT4. This facilitates designing a DIRC-reconstruction algorithm that improves the Cherenkov-angle resolution of a DIRC detector by ≈ 30% compared to existing algorithms. FastDIRC also greatly reduces the time required to study competing DIRC-detector designs.
Journal of Instrumentation
Hardin, J. and Williams, M. “FastDIRC: a Fast Monte Carlo and Reconstruction Algorithm for DIRC Detectors.” Journal of Instrumentation 11, no. 10 (October 10, 2016): P10007–P10007.