leonarski_fandClaude Opus 5
ef5da29319
A powder calibration is run because the file's geometry is in doubt, so a fit that quietly returns part of that file has answered nothing - and it is indistinguishable from one that worked, down to the residual and the sigmas arranged around it. On one of four LaB6 exposures of one detector the tilt came out at 2.93x its own sigma, a hundredth under the significance gate, so it was declined and pinned - at the master's hardcoded rot1 -0.08, rot2 -0.22 deg. That is eight times the tilt just refused, on no evidence, and worth 10 px of PONI at 190 mm. rugnux printed it to four decimal places, wrote the .poni, and exited 0. Judge the result on provenance instead of on any residual: a geometry is a measurement only if every parameter in it came from this data. Two ways out of the fits do not qualify - a covariance that never conditioned, so the fit cannot say what it determined, and a declined tilt pinned at a non-zero value from the file. A declined tilt over a file stating no tilt still qualifies, because reporting no tilt is then exactly what was measured; so does --no-refine-tilt, because a hold that was asked for is a stated choice and not a silent substitution. No single number separates the four. rms is 2.465 px against 1.44-1.64; the significance of all four lies between 2.93 and 4.47, so the gate is nearly a coin flip at these distances and moving it would only recalibrate on one population; and the failed fit has the TIGHTEST parameter sigmas of the set, because pinning the tilt removes the tilt/centre correlation that inflates a good fit's. The spot cross-check reads 13.5 px against 0.98-2.66, but 10.4 px of that is the pinned tilt moving the PONI - the same defect one step downstream, not independent evidence. On a failure rugnux says so, writes no .poni - a PONI file states where the detector is and has no field in which to say it does not know - writes the JSON with converged false and the reason beside it, and exits non-zero. The re-binning pass now prefers a converged refit over a non-converged one whatever its residual, so a tilt an earlier pass measured is not what a later one gets pinned at. Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Jungfraujoch
Application to receive data from the PSI JUNGFRAU and EIGER detectors.
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