{"artifact_id":"L1-094","layer":"L1","title":"STEM-EDX — X-ray energy-dispersive elemental mapping","domain":"Electron Microscopy","sub_domain":"Chemical composition via characteristic X-rays","physics_fingerprint":{"L_DAG":3.4,"title":"STEM-EDX — X-ray energy-dispersive elemental mapping","domain":"Electron Microscopy","carrier":"electron","primitives":["L.illumination.convergent_probe","S.scan.raster","D.edx_detector","int.spectral"],"sub_domain":"Chemical composition via characteristic X-rays","noise_model":"shot_poisson","problem_class":"linear_inverse","solution_space":"elemental_concentration_map","difficulty_delta":3,"integration_axis":"spectral","sensing_mechanism":"edx_characteristic_xray"},"observable_profile":{"metric":"PSNR_dB","regime":"Existence of the recovered elemental concentration map is guaranteed within the declared Omega bounds. Uniqueness holds on the measurement-supported subspace; out-of-support modes are controlled by the declared priors. Stability is moderately conditioned (kappa_eff ~= 10); detector_dead_time dominates the stability cliff; peak_overlap and the remaining mismatch parameters contribute higher-order bias terms. Photon-shot-noise-limited (poisson counting) sets the irreducible data-fidelity floor, while mild Tikhonov or analytic inversion is sufficient at the nominal Omega point.","secondary":"SSIM"},"size_tiers":{"center_spec":{"omega":{"H":512,"W":512,"kV":200,"dwell_ms":5,"N_elements":6,"peak_overlap":0.0,"peak_electrons":1000,"detector_dead_time":0.1,"absorption_correction":0.0},"input_format":"measurement_only","problem_class":"stem_edx","forward_operator":"stem_edx_forward","epsilon_fn_center":"25.0"},"omega_bounds":{"H":[128,2048],"W":[128,2048],"kV":[60,300],"dwell_ms":[0.1,1000],"N_elements":[2,30],"peak_overlap":[0.0,0.5],"peak_electrons":[50,100000],"detector_dead_time":[0.0,0.5],"absorption_correction":[0.0,0.3]},"epsilon_bounds":{"psnr_db":[10.0,40.0]},"allowed_problem_classes":["stem_edx"],"allowed_omega_dimensions":["H","W","N_elements","kV","dwell_ms","peak_electrons","detector_dead_time","peak_overlap","absorption_correction","detector_dead_time","peak_overlap","absorption_correction"],"allowed_forward_operators":["stem_edx_forward"]},"hardness_fn":{"type":"epsilon_fn","delta":3,"kappa":200,"metric":"PSNR_dB"},"initiator_dataset":[{"name":"primary","weight":1.0,"ipfs_cid":null,"license_hash":null}],"status":"testnet","staked_pwm":0.0,"chain_hash":"0x9e7ec6f14b81d585009a8ebebd67a34c5ae7609a79cd195746e71996cb81c2c0","chain_tx_hash":"0xff096da21fdb8ac871c47eb8415020407f18667343b8f0c1bde7a89eb2b5cf80","chain_block":41554185}