In the seven STFC detector images, the intensity centroid was sensitive to the background and analysis area. For one frame, the vertical spread reached 37.7 pixels across the six tested combinations.
Study limits. This is sensitivity to processing the same image. It does not measure differences between implosions, fusion yield or physical plasma dimensions.
Real experimental retrospective analysis. Version0.1.0; computational verification does not establish a new physical discovery.
Abstract and objective
Inventory the published experimental archive and characterize raw detector arrays and pixel-domain processing robustness. No implosion-performance or operating-parameter analysis.
Methods and all parameters are in the accompanying METHODOLOGY and manifest. Originals and transformed displays remain distinct. Units and unknown calibrations are explicit.
Verified quantitative findings
ICF-01 / OBSERVED
Verified experimental diagnostic inventory
Bounded ZIP path/type/size validation, hashes, original HDF4 layout inspection
{'x_range_px': 8.482993794463255, 'y_range_px': 27.493343077138547, 'method': 'All6declared background/fixedROI combinations; range is preprocessing sensitivity, not a confidence interval or physical shot-to-shot difference'}
{'x_range_px': 19.662304210247612, 'y_range_px': 31.186901151629513, 'method': 'All6declared background/fixedROI combinations; range is preprocessing sensitivity, not a confidence interval or physical shot-to-shot difference'}
{'x_range_px': 0.8656053439643756, 'y_range_px': 4.9670732604679415, 'method': 'All6declared background/fixedROI combinations; range is preprocessing sensitivity, not a confidence interval or physical shot-to-shot difference'}
{'x_range_px': 5.882454976262807, 'y_range_px': 19.39653326914288, 'method': 'All6declared background/fixedROI combinations; range is preprocessing sensitivity, not a confidence interval or physical shot-to-shot difference'}
{'x_range_px': 18.08158473962021, 'y_range_px': 37.72015718203966, 'method': 'All6declared background/fixedROI combinations; range is preprocessing sensitivity, not a confidence interval or physical shot-to-shot difference'}
{'x_range_px': 0.8047038626384619, 'y_range_px': 4.762418254523141, 'method': 'All6declared background/fixedROI combinations; range is preprocessing sensitivity, not a confidence interval or physical shot-to-shot difference'}
{'x_range_px': 4.827974601995265, 'y_range_px': 8.301585077136565, 'method': 'All6declared background/fixedROI combinations; range is preprocessing sensitivity, not a confidence interval or physical shot-to-shot difference'}
STFC OMEAG_SAI-23A, shot 109090: original raw detector array displayed with explicit linear P01–P99 scaling and stride; no physical conversion. CC BY4.0; source authors in manifest.Shot 109090: display-only positive raw-minus-original-border-median, clipped at transformed P99. Detector coordinates and explicit stride; source original unchanged. STFC CC BY4.0.Generic detector-pixel profiles after declared border-median subtraction; not plasma dimensions, yield or implosion performance.STFC OMEAG_SAI-23A, shot 109092: original raw detector array displayed with explicit linear P01–P99 scaling and stride; no physical conversion. CC BY4.0; source authors in manifest.Shot 109092: display-only positive raw-minus-original-border-median, clipped at transformed P99. Detector coordinates and explicit stride; source original unchanged. STFC CC BY4.0.Generic detector-pixel profiles after declared border-median subtraction; not plasma dimensions, yield or implosion performance.STFC OMEAG_SAI-23A, shot 109093: original raw detector array displayed with explicit linear P01–P99 scaling and stride; no physical conversion. CC BY4.0; source authors in manifest.Shot 109093: display-only positive raw-minus-original-border-median, clipped at transformed P99. Detector coordinates and explicit stride; source original unchanged. STFC CC BY4.0.Generic detector-pixel profiles after declared border-median subtraction; not plasma dimensions, yield or implosion performance.STFC OMEAG_SAI-23A, shot 109094: original raw detector array displayed with explicit linear P01–P99 scaling and stride; no physical conversion. CC BY4.0; source authors in manifest.Shot 109094: display-only positive raw-minus-original-border-median, clipped at transformed P99. Detector coordinates and explicit stride; source original unchanged. STFC CC BY4.0.Generic detector-pixel profiles after declared border-median subtraction; not plasma dimensions, yield or implosion performance.STFC OMEAG_SAI-23A, shot 109098: original raw detector array displayed with explicit linear P01–P99 scaling and stride; no physical conversion. CC BY4.0; source authors in manifest.Shot 109098: display-only positive raw-minus-original-border-median, clipped at transformed P99. Detector coordinates and explicit stride; source original unchanged. STFC CC BY4.0.Generic detector-pixel profiles after declared border-median subtraction; not plasma dimensions, yield or implosion performance.STFC OMEAG_SAI-23A, shot 109099: original raw detector array displayed with explicit linear P01–P99 scaling and stride; no physical conversion. CC BY4.0; source authors in manifest.Shot 109099: display-only positive raw-minus-original-border-median, clipped at transformed P99. Detector coordinates and explicit stride; source original unchanged. STFC CC BY4.0.Generic detector-pixel profiles after declared border-median subtraction; not plasma dimensions, yield or implosion performance.STFC OMEAG_SAI-23A, shot 109103: original raw detector array displayed with explicit linear P01–P99 scaling and stride; no physical conversion. CC BY4.0; source authors in manifest.Shot 109103: display-only positive raw-minus-original-border-median, clipped at transformed P99. Detector coordinates and explicit stride; source original unchanged. STFC CC BY4.0.Generic detector-pixel profiles after declared border-median subtraction; not plasma dimensions, yield or implosion performance.
Uncertainty, discussion and limitations
Instrument detector values and pixel coordinates only; no conversion to physical plasma dimensions or radiometric quantities.
Processed PSL images, neutron/proton performance diagnostics, target specifications and operating parameters are not analyzed.
Raw gel and source-processed PSL arrays remain distinct; originals remain unchanged.
No absolute yield, temperature, areal density, ignition, implosion model or performance optimization inferred.
ICF03 is methodological robustness of the same measurements, explicitly replacing cross-implosion comparison.
Sensor full scale, calibration errors and systematic uncertainties remain unknown.
Validation and conclusions
Algorithm controls, independent numerical checks and exact acquired-source replay accompany publication. These are reproducible descriptions of selected real data, not a new plasma law, named instability, ignition result or validated prediction.
Original software: Apache2.0. Data-derived scientific report, plots and selected measurements: CC-BY-4.0. Source attribution and modifications: acquired source arrays, unit normalization, explicit selections, deterministic statistics and labeled display scaling by Mattoccia Labs; no source endorsement.
# Reproduce FPE-002
From the original source release, on qualified macOS Apple Silicon/Python3.12:
```sh
python3.12 scripts/setup_fusion.py
.venv-fpre/bin/python -m fusion.cli run --experiment FPE-002 --data .local/fusion
.venv-fpre/bin/python -m fusion.cli reproduce --experiment FPE-002 --job JOB_ID --data .local/fusion
```
Initial run acquires official data explicitly. Keep source responses and manifest. Reproduce rehashes original bytes and recomputes without network; missing or modified source objects cause a visible failure. Upstream may replace Zarr objects at the same URL, so fresh acquisition is not automatically the original version. A qualified selected-input public replay is separately labeled; it cannot replace full raw-source validation. No model, apparatus access or cloud is required. Other operating systems are not qualified.
