K2 Summit and K2 Base Direct Detection Camera User's Guide
29
In Counted and Super-Resolution modes, image quality starts to sharply decrease around
twice the suggested dose rate, and is close to saturation at around three times the suggested
dose rate. Note that the dose rates listed for Counted and Super-Resolution modes are the
same per physical pixel.
Saturation: If you saturate at one exposure length, you saturate at all exposure lengths. This
is why we look at dose rate. The camera is always operating at a fixed 0.0025 second
exposure (400 frames per second, in Summit mode). The DM exposure length determines
how many of those 1/400th second images are summed into the image you see.
Other Recommendations
It is best to avoid saving data to the desktop. The solid state system drive is fast, but small
and can fill quickly.
The PC requires approximately 7 minutes to boot. The screen may remain blank during this,
do not force it to power down or restart.
Do not quit and immediately restart DM. DM requires a few seconds to save data when
closed.
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