{"artifact_id":"L1-149","layer":"L1","title":"Streak Camera — picosecond 1D time-resolved imaging","domain":"Ultrafast Imaging","sub_domain":"1D time-resolved photoelectron streaking","physics_fingerprint":{"L_DAG":3.3,"title":"Streak Camera — picosecond 1D time-resolved imaging","domain":"Ultrafast Imaging","carrier":"photon","primitives":["L.photocathode","L.sweep_voltage","D.streaked_phosphor","int.temporal"],"sub_domain":"1D time-resolved photoelectron streaking","noise_model":"shot_poisson","problem_class":"linear_inverse","solution_space":"1D_time_trace","difficulty_delta":5,"integration_axis":"temporal","sensing_mechanism":"streak_tube_time_resolved"},"observable_profile":{"metric":"PSNR_dB","regime":"Existence of the recovered 1D time trace 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); sweep_nonlinearity dominates the stability cliff; photocathode_jitter 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":{"N_t":1024,"N_x":1024,"sweep_ps":100,"afterglow":0.0,"photon_count":500,"space_charge":0.0,"sweep_nonlinearity":0.0,"photocathode_jitter":0.5},"input_format":"measurement_only","problem_class":"streak_camera","forward_operator":"streak_camera_forward","epsilon_fn_center":"26.0"},"omega_bounds":{"N_t":[128,4096],"N_x":[128,4096],"sweep_ps":[1,1000],"afterglow":[0.0,0.3],"photon_count":[10,10000],"space_charge":[0.0,0.3],"sweep_nonlinearity":[0.0,0.3],"photocathode_jitter":[0.0,5.0]},"epsilon_bounds":{"psnr_db":[5.0,40.0]},"allowed_problem_classes":["streak_camera"],"allowed_omega_dimensions":["N_x","N_t","sweep_ps","photon_count","sweep_nonlinearity","photocathode_jitter","space_charge","afterglow","sweep_nonlinearity","photocathode_jitter","space_charge","afterglow"],"allowed_forward_operators":["streak_camera_forward"]},"hardness_fn":{"type":"epsilon_fn","delta":5,"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":"0xabe8402be261e624237347f71c511f7b48021b9c295bb2b2becf6765775d6ce9","chain_tx_hash":"0xe170b82b27c15c7df9bf0e446671249f2f9bef84cf7eec561bb358281f568022","chain_block":41554229}