An RFC to accept the Slater et al. report about the effects of the acceptance of LCR-835, the baselining of a heterogeneous focal plane.
Abstract: The LSST heterogeneous focal plane is a potential source of false detections in image differencing due to difference between vendors in the sensor quantum efficiencies as a function of wavelength. We can evaluate the magnitude of this effect in a worst-case scenario (with no attempt at correction) by estimating the flux difference that would be measured between sensors, for a variety of stellar SEDs, and combining this with the expected density of sources at a given color and the probability that they will exceed the 5σ detection threshold as a result of the measurement difference. Overall the sensor differences are small enough that only negligible numbers of false detections will result, but we note that the specifications for the filter transmission curve currently permit a level of spatial variations that could lead to a significant number of false detections