Sentence examples for dark rate from inspiring English sources
The dark rate is extremely low, and in normal circumstances does not need to be measured.
Time resolution, imaging properties and dark rate were investigated with these measurements.
Tests were performed to determine the dark rate, charge and timing resolutions, double-pulsing rate, and desired operating voltage for each tube, so that the tubes could be sorted for optimal placement in the detector.
The fundamental characteristics were evaluated and we observed a dark rate per channel of 300 500 s−1, count rate linearity of up to 1.2 MHz for light pulse of a steady repetition, and maximum crosstalk ratio between channels of 2.7%.
Seedlings irradiated with a short, single pulse of green light begin to grow rapidly within 15 min, attaining 140% of their dark rate before growth rate declines to dark levels after an hour.
Key features of the tested devices when operated at 90% breakdown probability are peak photon detection efficiencies between 40%and55%5%, temperature dependencies of gain and PDE that are less than 1%/°C, dark rates of ∼50 kHz/mm2 at room temperature, afterpulsing of about 2%, and direct optical crosstalk between 6% and 20%.
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Subtracting the mean dark count rate from the mean count rate and dividing the difference by the calibrated input photon rate gives (P_{text{de}}).
The top plot shows the uncorrected results for the dark count rate (DCR) and the source count rate (SCR) as a function of temperature.
Dark count rate measured with t=98 ms (stars), expected dark count rate as a function of temperature (solid line), data set with t=65 ms (circles).
We then calculate the relative change in (P_{text{de}}) by subtracting the mean dark count rate and then normalizing against the initial photon count rate.
