{"schema_version":1,"experiment_id":"eoa_inverse_innovation_exp09_archetype_breadth150_20260804","cell_id":"load_leveling_or_demand_smoothing__chemistry_materials","arm":"BREADTH_PROBE_ONE_SHOT","candidate_id":"load_leveling_or_demand_smoothing__chemistry_materials__P1","proposal_index":1,"version":0,"title":"Thermally Gated Cohort Curing for Large-Area Photopolymer Layers","problem":"In large-area digital-light-processing photopolymerization, exposing an entire dense layer at once can synchronize radical generation, heat release, and cure shrinkage. The candidate problem exists when this brief reaction load exceeds the resin-and-vat system's local heat-removal or stress-relaxation capacity even though the same layer's total reaction work is manageable over a longer interval.","actors":["Photopolymer process engineer","Printer operator","Printer exposure-control system","Materials quality engineer","Laboratory safety authority"],"observable_state":"Instrumented full-mask exposures exhibit narrow, spatially aligned peaks in surface temperature, heat flow, or contraction rate, followed by lower-load intervals before the next layer. Peak-associated locations also show conversion gradients, residual distortion, delamination, or network-property variation, while the layer-average thermal load remains within the equipment's longer-window capacity.","consequence":"Synchronized curing can create local overheating and simultaneous shrinkage that produce dimensional error, residual stress, interlayer separation, or heterogeneous polymer-network properties, limiting usable layer area or exposure settings.","affected_objective":"Maintain conversion uniformity, dimensional fidelity, and interlayer adhesion within the process safety envelope while completing every planned exposure within a defined layer-cycle window.","intervention":"Partition each layer mask into nonadjacent microtile cohorts and release their exposure pulses sequentially within the existing layer interval. An infrared temperature or calibrated heat-flow signal acts as a capacity signal: the next cohort is released only when measured thermal headroom exceeds a preset margin. Every tile retains its specified cumulative dose and a maximum completion delay; support anchors or other validated nonshiftable regions receive protected early service, ordinary cohort order rotates across layers, and an exposure ledger prevents deferred tiles from disappearing.","structural_mapping":[{"archetype_element":"Flow or workload","domain_realization":"Local photopolymerization events impose reaction heat and shrinkage work on finite heat-removal and stress-relaxation capacity."},{"archetype_element":"Destabilizing temporal concentration","domain_realization":"A full-field mask initiates many neighboring cure events in the same short interval."},{"archetype_element":"Observable capacity profile","domain_realization":"Infrared temperature or heat-flow measurements estimate momentary thermal headroom during the layer cycle."},{"archetype_element":"Temporally shiftable work","domain_realization":"Most microtile exposures can move by milliseconds or seconds without being omitted, provided cumulative dose and maximum-delay constraints are met."},{"archetype_element":"Urgent or nonshiftable-work protection","domain_realization":"Validated adhesion-critical anchors or regions with a narrow gel-window requirement bypass ordinary cohort rotation and receive bounded early exposure."},{"archetype_element":"Temporal distribution policy","domain_realization":"A nonadjacent cohort schedule spreads cure initiation across the layer interval instead of releasing the full mask simultaneously."},{"archetype_element":"Feedback","domain_realization":"Measured thermal headroom gates cohort release and records whether peak reduction creates delay, incomplete service, or a secondary peak."},{"archetype_element":"Preserved demand and bounded backlog","domain_realization":"The exposure ledger requires every planned tile to receive its full prescribed dose before the layer deadline; no tile is silently dropped."},{"archetype_element":"Fairness across shifted work","domain_realization":"Rotating ordinary cohort order prevents the same spatial regions from repeatedly receiving the longest delay."}],"mechanism_mapping":[{"mechanism_slug":"staggered_start_or_release_times","role":"Phase-offset microtile cohorts desynchronize neighboring reaction starts and distribute heat and shrinkage work across time.","counterfactual_removal":"If all cohorts start together, the intervention collapses to the synchronized baseline and no temporal leveling occurs."},{"mechanism_slug":"capacity_signal","role":"In-situ thermal headroom determines when another cohort may safely enter reaction rather than relying only on a fixed clock.","counterfactual_removal":"Without the signal, the schedule cannot adapt to resin temperature, prior-layer heat, or geometry-dependent variation and may under-smooth or migrate the peak."},{"mechanism_slug":"service_slot_allocation","role":"Each tile receives an auditable exposure slot, full cumulative dose, and maximum delay within the layer window.","counterfactual_removal":"Without allocated completion slots, deferral becomes simple delay and tiles can starve or accumulate as hidden unfinished work."}],"causal_chain":["Full-field exposure synchronizes radical generation across many adjacent regions.","Synchronized reaction heat and cure contraction create a short load peak above local dissipation or relaxation capacity.","The mask is divided into nonadjacent, fully accounted exposure cohorts with bounded timing flexibility.","Thermal feedback releases each cohort only when measured headroom is available, while protected regions bypass ordinary sequencing.","The same planned exposure work is distributed across the layer interval, reducing temporal overlap of local heat and shrinkage loads.","Completion, temperature, conversion, adhesion, and distortion measurements reveal whether the peak was smoothed without hidden unfinished exposure, secondary peaks, or degraded material quality."],"baseline":"Expose the complete layer mask simultaneously using the current formulation and geometry, with the same prescribed cumulative dose and nominal layer-cycle budget; any cooling or waiting occurs only after the synchronized reaction peak.","nearest_rivals":["Uniformly lowering irradiance and extending exposure: a global rate limit that changes reaction kinetics everywhere rather than allocating intact exposure work to lower-load time slots.","Longer dark time between layers: simple delay after the within-layer peak, which may cool the vat but does not desynchronize that peak.","Active cooling, a heat sink, or thermally conductive filler: buffering or capacity expansion that absorbs or removes heat after it is generated rather than redistributing cure initiation.","Lower photoinitiator loading or reduced illuminated area: material reformulation or demand reduction that may reduce total or instantaneous reaction work instead of preserving and shifting all planned exposure.","Fixed raster scanning: generic open-loop scheduling unless its ordering is explicitly designed around peak reduction, completion accounting, maximum delay, and measured capacity."],"remaining_contrastive_claim":"The testable distinction is that feedback-gated temporal redistribution of complete, dose-preserving cure events can address an intra-layer reaction peak while keeping every tile on a defined service path; cooling treats generated heat, uniform attenuation caps kinetics, and post-layer waiting occurs after the peak.","authority_safety":{"decision_authority":"The materials-process owner may authorize coupon-scale exposure-program changes only with the laboratory safety authority's temperature, ventilation, optical-radiation, and resin-handling limits in force; production release remains with the quality authority.","authorized_first_step":"Run the schedule only on instrumented, non-production coupons using an already approved resin, printer enclosure, and exposure range.","excluded_actions":["Changing resin formulation or photoinitiator concentration","Disabling printer interlocks, enclosure controls, ventilation, or thermal cutoffs","Applying the schedule to production or load-bearing parts","Exceeding approved optical dose, resin temperature, or layer-time limits","Dropping or under-dosing deferred tiles to meet the cycle deadline"],"halt_rollback":"Immediately stop exposure on a safety-limit excursion, smoke, bubbling, unexpected temperature acceleration, incomplete cohort ledger, or visible delamination. Preserve logs, quarantine the coupon, and restore the validated simultaneous-exposure program before any unrelated printer use."},"negative_tests":{"strongest_counterevidence":"At matched dose and layer-cycle budget, synchronized exposure produces equal or lower peak temperature, distortion, and conversion variation, while cohort curing introduces seams, oxygen-inhibited boundaries, or weaker intertile and interlayer adhesion.","problem_falsifier":"Across the intended geometry and exposure range, time-resolved thermal and contraction measurements show no concentrated load approaching the system's dissipation or relaxation limit, and observed defects do not track peak-to-average reaction load.","intervention_falsifier":"The cohort schedule fails to lower the measured reaction-temperature or contraction peak, merely shifts it to a later cohort, leaves unfinished exposure, or worsens conversion uniformity, dimensional error, or adhesion at matched formulation, geometry, cumulative dose, and bounded cycle time.","risks":["Peak migration to the final cohort","Hidden unfinished or under-dosed tiles","Cure seams or oxygen inhibition at cohort boundaries","Loss of interlayer adhesion from excessive intralayer delay","Thermal sensor lag or emissivity error causing unsafe release decisions","Repeatedly delaying the same regions and creating spatial property bias","Gaming or misclassification of protected regions","Planning overhead exceeding the printer controller's reliable timing resolution","A true total-capacity shortfall being mistaken for a timing problem"]},"next_evidence_step":"Using one approved resin, one layer thickness, and one representative dense-mask coupon geometry, conduct a bounded randomized paired comparison between simultaneous full-mask exposure and a four-cohort nonadjacent feedback-gated schedule. Hold cumulative tile dose and maximum layer time fixed; record infrared temperature versus time, cohort completion, conversion at predefined locations, coupon warpage, and interlayer adhesion. Stop under the stated safeguards and reject the intervention if any tile misses its dose or delay bound, a secondary peak appears, or material-quality measures deteriorate.","prior_art_status":"UNSEARCHED","diversity_from_prior_proposals":"Not assessed; runtime isolation prohibited inspection of other proposals or experiment candidates.","revision_record":{"parent_version":null,"progress_targets_addressed":[],"conceptual_changes":[],"operational_changes":[],"evidence_changes":[],"claim_changes":[]}}