{"artifact_id":"L1-085","layer":"L1","title":"Transmission Electron Microscopy (TEM) — thin-section contrast imaging","domain":"Electron Microscopy","sub_domain":"Phase-contrast electron transmission","physics_fingerprint":{"L_DAG":3.3,"title":"Transmission Electron Microscopy (TEM) — thin-section contrast imaging","domain":"Electron Microscopy","carrier":"electron","primitives":["L.illumination.coherent_beam","L.transmit_sample","L.lens_aberration","int.temporal"],"sub_domain":"Phase-contrast electron transmission","noise_model":"shot_poisson","problem_class":"linear_inverse","solution_space":"2D_phase","difficulty_delta":3,"integration_axis":"temporal","sensing_mechanism":"electron_transmission"},"observable_profile":{"metric":"PSNR_dB","regime":"Existence of the recovered 2D phase 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 ~= 12); defocus_nm dominates the stability cliff; Cs_aberration 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":4096,"W":4096,"kV":300,"Cs_mm":2.7,"pixel_A":1.0,"drift_nm":0.0,"defocus_nm":-80,"peak_electrons":50,"envelope_coherence":1.0},"input_format":"measurement_only","problem_class":"tem_ctf","forward_operator":"tem_ctf_forward","epsilon_fn_center":"26.0"},"omega_bounds":{"H":[1024,8192],"W":[1024,8192],"kV":[80,300],"Cs_mm":[0.01,5.0],"pixel_A":[0.3,5.0],"drift_nm":[0.0,5.0],"defocus_nm":[-2000,2000],"peak_electrons":[1,1000],"envelope_coherence":[0.5,1.0]},"epsilon_bounds":{"psnr_db":[10.0,40.0]},"allowed_problem_classes":["tem_ctf"],"allowed_omega_dimensions":["H","W","pixel_A","kV","Cs_mm","defocus_nm","peak_electrons","drift_nm","envelope_coherence","defocus_nm","Cs_aberration","drift_nm","envelope_coherence"],"allowed_forward_operators":["tem_ctf_forward"]},"hardness_fn":{"type":"epsilon_fn","delta":3,"kappa":240,"metric":"PSNR_dB"},"initiator_dataset":[{"name":"primary","weight":1.0,"ipfs_cid":null,"license_hash":null}],"status":"testnet","staked_pwm":0.0,"chain_hash":"0xa8e36a2459d223c4be945625a2cf20aa0a8ceaef9882c2d56957e5ee4e75a21a","chain_tx_hash":"0x183d8ec5e79a28d11334bad4a73f79425b14cc08d42722d2b8c8f5371d63f511","chain_block":41554183}