Cooled photomultiplier based photodetector with reduced condensation and related device and method

摘要

Problem to be solved: to provide an apparatus or system comprising a compact PMT or PMT based photodetector that is small and reduces or prevents condensation, and such PMT or PMT based photodetectors.Photodetector 208 includes a cooling device 244 between photomultiplier (PMT) device 242 and heat sink 246.The thermally conductive shield 248 encloses the PMT device 242 and cooling device 244 and is in thermal contact with the heat sink 246 such that the heat sink 246 transfers heat to the shield 248.Photodetector 208 may be included in a sample analyzer configured to perform optical measurements of the sample.Diagram