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arXiv · 1608.01180

FastDIRC: a fast Monte Carlo and reconstruction algorithm for DIRC detectors

John Hardin·Mike Williams
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Abstract

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. GEANT-based DIRC Monte Carlo simulations are extremely CPU intensive. The FastDIRC algorithm permits fully simulating a DIRC detector more than 10000 times faster than using GEANT. This facilitates designing a DIRC-reconstruction algorithm that improves the Cherenkov-angle resolution of a DIRC detector by about 30% compared to existing algorithms. FastDIRC also greatly reduces the time required to study competing DIRC-detector designs.

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John Hardin, Mike Williams. 2016-08-02. FastDIRC: a fast Monte Carlo and reconstruction algorithm for DIRC detectors. https://doi.org/10.1088/1748-0221/11/10/p10007

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