R212 tube equivalent, photomultiplier tube.
28mm (1-1/8 Inch) Diameter Side-on 185 to 650nm Spectral Response High Gain and Low Dark Current Variant of 1P28
GENERAL
Parameter Description/value Spectral Response 18.
value Spectral Response 185 to 650 Wavelength of Maximum Response 340 PhotoSb-Cs Material 8 × 24 cathode Minimum Useful Size UV glass Window Material Circular-cage Structure Dynode 9 Number of Stages Direct 4 Anode to Last Dynode Interelectrode 6 Cap.
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