leonarski_fandClaude Opus 4.8
82b8a9752c
The rotation per-image mosaicity was ~3x too small (0.045 vs the true 0.13deg), which crippled the partiality model and capped per-observation precision: it predicted reflections on too few frames and over-peaked the rocking partiality, so the rot3d-combined fulls were ~1.7x noisier than XDS's, the integration bottleneck behind the jungfraujoch-vs-XDS ISa gap. Two root causes, both fixed: - CalcMosaicityXDS (Kabsch-2010 MLE) searched each spot's exact-Bragg phi only within +-wedge (the 0.2deg oscillation). Reflections recorded at larger rocking offset - the tail that defines the mosaic width - fell outside and were dropped, truncating the tau distribution so the MLE underestimated ~2x. Widen the search window to wedge+0.8deg; the MLE then converges to the true 0.13deg (and is insensitive to widening further, since it weights by the recorded fraction). - ScaleOnTheFly then re-refined the mosaicity from the intensity residual, which is degenerate with the per-image scale G and collapses it toward its floor. Trust the (now correct) indexing mosaicity and keep it fixed during scaling. With the correct mosaicity, --capture-uncertainty (which down-weights the over-extrapolated under-captured fulls) now pays off strongly, so default it ON (1.0) for the rot3d combine; it stays off for non-rot3d. Together on the HEWL rotation crystal: ISa 10.7 -> 19.1, and anomalous peak height vs XDS goes from 52% to ~78% (CL_CL 1.92x -> 1.29x). This reaches XDS's own published-correction ceiling (DECAY+ABSORP+MODPIX ~= 19.6); the remaining gap to its quoted ISa 28 is the I->inf extrapolation. No effect on the stills path (rotation-only code). Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Jungfraujoch
Application to receive data from the PSI JUNGFRAU and EIGER detectors.
All documentation is now placed in docs/ subdirectory and for the current version hosted on Jungfraujoch Read The Docs page.