Ring Identification and Pattern Recognition in Ring Imaging Cherenkov (RICH) Detectors

Details Ring Identification and Pattern Recognition in Ring Imaging Cherenkov (RICH) Detectors Ring Identification and Pattern Recognition in Ring Imaging Cherenkov (RICH) Detectors

2005-08-04

arxiv.org/abs/physics/0508034v1

Nucl.Instrum.Meth. A560 (2006) 621-632

Physics

Instrumentation and Detectors

About 18 pages

Scientific paper

10.1016/j.nima.2006.01.073

An algorithm for identifying rings in Ring Imaging Cherenkov (RICH) detectors is described. The algorithm is necessarily Bayesian and makes use of a Metropolis-Hastings Markov chain Monte Carlo sampler to locate the rings. In particular, the sampler employs a novel proposal function whose form is responsible for significant speed improvements over similar methods. The method is optimised for finding multiple overlapping rings in detectors which can be modelled well by the LHbC RICH toy model described herein.

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