DataMessage::strong_pixel_count is written all the way to CBOR, to
/entry/MX/strongPixels, to the receiver plots and to the frontend - and only
the FPGA receiver ever set it. Every EIGER dataset, and every rugnux run,
stored zeros.
It is the one number that distinguishes an image the spot finder gave up on
from an image that did not diffract, and its absence is why a defect that cost
767 of 1800 images their spots looked like a crystal that stopped diffracting
for two blocks of the sweep. Fill it on the CPU/GPU path as well: the finders
know the count, the GPU extractor already had it on the device, and it rides
back with the spot count on the frame's one synchronisation, so it costs
nothing.
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01FBumeJVx4oeXxiBRpkrE5H
leonarski_fandClaude Opus 5
42add7c0e2