Example estimation of the native AC rate μ̇₀ for FOV1 (upper panel) and FOV2 (lower) in the same device (ROW3 AF5). The value of μ̇₀ coincides with the AC rate for which the AC FWHM is minimised, as determined by fitting an appropriate pseudo-hyperbolic function (grey line) through the data (black dots). The vertical dashed lines indicate the minimum of the interpolating function, which provides the estimate of μ̇₀.