Münster 2011 – scientific programme

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HK: Fachverband Physik der Hadronen und Kerne

HK 14: Instrumentierung III

HK 14.3: Talk

Monday, March 21, 2011, 17:00–17:15, HS2

An efficient threshold and noise extraction algorithm suitable for FPGAs — •Marius C. Mertens and James Ritman — Institut für Kernphysik, Forschungszentrum Jülich GmbH

A silicon pixel detector's threshold and noise are typically characterized by recording the detection efficiency as a function of the signal size. This data follows a characteristic S-curve and can be mathematically described by a Gauss error function. The common way to extract threshold and noise is a fit of the error function to the data, thus requires solving a nonlinear optimization problem. In this talk, we present a novel method which allows the determination of threshold and noise in a purely analytical way suitable for an FPGA implementation.