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CRTs WSA and WSB as a function of the number of photoelectrons using single-ended photodetector readout of two hypothetical ultra-fast scintillators. Photodetectors are either on surface A or surface B with the opposite surface reflective. Solid lines for a photodetector time jitter J = 0.4 ns fwhm. Dashed lines for J = 0.0 ns fwhm.
