HN Theater @HNTheaterMonth

High-speed X-ray video captured with a Dectris photon-counting detector. I show how the process works and how this detector is different than normal camera detectors.

https://www.dectris.com/
https://media.dectris.com/Technical_Specification_PILATUS_100K-S_V1_8.pdf
Mexican jumping beans: https://www.amazingbeans.com/
Geiger counter: https://mightyohm.com/blog/products/geiger-counter/
X-ray timelapse video: https://www.youtube.com/watch?v=j-FHbHoiwNk
ImageJ image format converter: https://imagej.nih.gov/ij/ (the NIH's SSL cert expired?)
Flipping through images fast enough as if playing video: https://www.irfanview.com/
Video editing software: https://www.blackmagicdesign.com/products/davinciresolve/edit
The sequence of tiff files directly from the sensor contain a lot of temporal flicker -- probably because the X-ray tube itself has time-varying output. This isn't so bad at 60Hz, but quite a problem at 300Hz. I used Resolve's "color stabilizer" to maintain constant levels throughout a clip, and was impressed how well this removed the flicker.

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