Why NASA is betting on a 36-pixel camera | TechCrunch
Briefly

Resolve is more than a camera. Its detector takes the temperature of each X-ray that strikes it. We call Resolve a microcalorimeter spectrometer because each of its 36 pixels is measuring tiny amounts of heat delivered by each incoming X-ray, allowing us to see the chemical fingerprints of elements making up the sources in unprecedented detail.
Despite its limited pixel count, each pixel in Resolve is remarkable, capable of generating a rich spectrum of visual data encompassing an energy range from 400 to 12,000 electron volts.
Read at TechCrunch
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