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I wonder how this will impact astronomy. I assume more energy efficient also means less need for cooling, possibly leading to cheaper low-noise sensors?
by yummybear 13y ago
I wonder how this will impact astronomy. I assume more energy efficient also means less need for cooling, possibly leading to cheaper low-noise sensors?
- jacquesm 13y agoI don't think that's a given. Just like more energy efficient transistors (smaller, fewer atoms) are more susceptible to noise.
- ygra 13y agoCertain types of image sensor noise is quite directly affected by temperature. An increase of 5–10 K usually doubles the dark current, for example.
- jacquesm 13y agoYes, of course it is affected by temperature. But the thinner the substrate could upset the signal/noise ratio faster than the gain in cooling capacity would correct for it. The same happens in most sensors on the extremes of sensitivity, and cooling is actually a way to correct for some of that. For space based sensor pods cooling is usually the limiting factor for long term deployment.