Guide to selecting a photodetector
Guide to selecting a photodetector Segnalato dal Dott. Giuseppe Cotellessa / Reported by Dr. Joseph Cotellessa By Earl Hergert, Hamamatsu Corporation & Slawomir Piatek, Hamamatsu Corporation & New Jersey Institute of Technology The process of selecting an appropriate photodetector among a photomultiplier tube, photodiode, avalanche photodiode, and silicon photomultiplier may seem taxing and confusing. It involves technical tradeoffs and compromises, calculations of signal and noise, and, sometimes, budgetary considerations. The purpose of this article is to provide a qualitative and quantitative guidance to this process based on the WITS$ approach, and to illustrate it with several case studies. Light is a versatile probe for investigating physical and chemical processes in nature. A system under investigation may infuse information about itself into the light it emits or reflects. Electrical signal is an effective medium for processing, transporting, and storing
