Public

X-ray Fluorescence Tomography — Public Tier

(5 scenes)

Full-access development tier with all data visible.

Measurements (y), ideal forward operator (H), spec ranges, ground truth (x_true), and true mismatch spec.

Load HDF5 → compare reconstruction vs x_true → check consistency → iterate.

Reconstructed signals (x_hat) and corrected spec as HDF5.

✓

True spec visible — use these exact values for Scenario III oracle reconstruction.

Parameter	Spec Range	True Value	Unit
self_absorption_correction	-6.0 – 12.0	3.0	-
rotation_axis_offset	-0.6 – 1.2	0.3	px
fluorescence_yield_error	-2.0 – 4.0	1.0	-
dead_time_at_high_count_rate	-2.0 – 4.0	1.0	-

Method: CPU_baseline — Mismatch parameter: nominal

33.04 dB

SSIM 0.8313

22.80 dB

SSIM 0.4030

24.56 dB

SSIM 0.4982

Per-scene breakdown (4 scenes)

Scene	PSNR I	SSIM I	PSNR II	SSIM II	PSNR III	SSIM III
scene_00	32.90	0.8330	22.40	0.4133	24.52	0.5154
scene_01	32.93	0.8361	22.59	0.4422	24.50	0.5349
scene_02	33.03	0.8183	23.28	0.3763	24.65	0.4644
scene_03	33.32	0.8377	22.94	0.3802	24.59	0.4779

#	Method	Score	PSNR	SSIM	Consistency	Trust	Source
1	DiffusionInstrumentation + gradient	0.781	31.57	0.938	0.95	✓ Certified	Zhang et al., 2024
2	CalibFormer + gradient	0.775	31.34	0.935	0.94	✓ Certified	Transformer calibration, 2024
3	Instrument-CNN + gradient	0.741	29.54	0.91	0.91	✓ Certified	Instrument-specific CNN
4	ResNet-Calib + gradient	0.728	29.08	0.902	0.88	✓ Certified	ResNet for calibration, 2022
5	MassSpecFormer + gradient	0.722	28.75	0.896	0.88	✓ Certified	Mass spectrometry transformer, 2024
6	ScoreInstrumentation + gradient	0.688	27.02	0.859	0.87	✓ Certified	Wei et al., 2025
7	PnP-BM3D + gradient	0.653	25.17	0.808	0.89	✓ Certified	Danielyan et al., 2012
8	PnP-NLM + gradient	0.638	24.53	0.787	0.89	✓ Certified	Non-local means filter
9	Calibration-Lookup + gradient	0.625	23.83	0.762	0.91	✓ Certified	Look-up table calibration
10	Peak Fitting + gradient	0.619	23.91	0.765	0.87	✓ Certified	Gaussian peak fitting
11	Deconv + gradient	0.599	22.57	0.714	0.94	✓ Certified	Analytical baseline

y H_ideal spec_ranges x_true true_spec

Format: HDF5

Scenes: 5

0.4 × PSNR_norm + 0.4 × SSIM + 0.2 × (1 − ‖y − Ĥx̂‖/‖y‖)

PSNR: 40% SSIM: 40% Consistency: 20%