{"closest_prior_art":[{"name":"HUD Chapter 7 lead-based-paint inspection protocol","overlap":"Defines testing combinations and prescribed locations, discourages unnecessary repeat readings, requires all XRF readings in the report, addresses substrate bias and improper deletion, and uses accredited laboratory paint-chip analysis for inconclusive results.","remaining_difference":"It does not physically constrain the analyzer to indexed ports, create an irreversible witness for every firing, adjust the discovery cutoff by the witnessed firing count, or reserve a shuttered paired specimen.","source_ids":["SRC1"]},{"name":"OSHA-described highest-reading XRF screening followed by paint-chip verification","overlap":"Directly describes screening multiple painted surfaces by XRF, selecting the highest concentrations, and verifying them with bulk paint-chip laboratory analysis.","remaining_difference":"The practice serves occupational-exposure scenario selection, not housing-material adjudication, and provides no bounded measurement family, tamper-evident firing inventory, multiplicity-aware cutoff, or prospectively reserved paired specimen.","source_ids":["SRC3"]},{"name":"EPA/HUD field evaluation of XRF with confirmatory laboratory ranges","overlap":"Empirically evaluates field variability, substrate-dependent bias, false classifications, spatial variation, and laboratory confirmation of XRF readings near the regulatory threshold.","remaining_difference":"It validates measurement and confirmation rules but does not disclose the proposed physical enforcement, count-indexed family correction, or shielded A/B-port architecture.","source_ids":["SRC2"]},{"name":"Thermo Scientific Niton XL2 data-storage and reporting features","overlap":"A first-party handheld-XRF product stores more than 10,000 readings with spectra and supports operator permissions, reports, positioning aids, data transfer, and test stands.","remaining_difference":"The product page does not establish that every firing is non-resettable and tamper-evident, physically limit the opportunity set, compute a family-size cutoff, or preserve a paired confirmation specimen.","source_ids":["SRC4"]}],"contrastive_claim_falsifier":"The contrastive claim would be falsified if inert-panel trials show that compliant ordinary XRF logging and HUD-style reporting reconstruct attempted looks and control family-level false crossings as well as the prototype, or if the prototype permits unpunched firings, applies an invalid count-dependent cutoff, or produces A/B discordance dominated by adjacent-port heterogeneity.","contrastive_claim_remaining":"For consequential housing-material findings selected from many field readings, an instrument-coupled physical fixture may add value beyond current protocols by jointly bounding selectable locations, irreversibly witnessing every firing independently of software, applying a prespecified count-indexed family-level discovery cutoff, and preserving an unopened paired specimen for targeted orthogonal confirmation.","experiment_id":"eoa_inverse_innovation_exp13_second_slot_policy60_20260806","gates":{"adequate_source_search":{"rationale":"The bounded search covered the proposal directly, older HUD terminology such as testing combinations and retest tolerance, current products and official practices, and combinations involving logging, fixtures, maximum selection, paint-chip confirmation, paired samples, and family-wise error. Four retained sources from four publishers were opened; no exact integrated apparatus was located.","source_ids":["SRC1","SRC2","SRC3","SRC4"],"status":"PASS"},"bounded_next_test":{"rationale":"The proposed 30-versus-30 inert-panel comparison is bounded, reversible, and capable of measuring firing-record completeness, reconstruction accuracy, false-crossing frequency, bypass evidence, A/B agreement, damage, and operating time. Cutoff validation and adjacent-port heterogeneity must be prespecified and analyzed separately.","source_ids":["SRC1","SRC2","SRC4"],"status":"PASS"},"distinct_testable_claim":{"rationale":"The retained art separately supplies prescribed testing families, complete reporting, electronic storage, maximum-selection practice, and laboratory confirmation, but none discloses their proposed integration through a keyed rail, irreversible per-trigger witness, mechanical count-indexed cutoff, and shielded paired specimen. Each claimed effect is experimentally observable.","source_ids":["SRC1","SRC2","SRC3","SRC4"],"status":"PASS"},"no_obvious_safety_or_authority_stop":{"rationale":"An inert-panel laboratory pilot can proceed without property entry or legal-case changes, provided licensed personnel follow radiation controls, manufacturer requirements, and specimen-custody rules. The apparatus must remain evidentiary only; laboratory accreditation, destructive-sampling authority, and legal decisions remain with existing authorities.","source_ids":["SRC1","SRC3","SRC4"],"status":"PASS"},"supported_problem":{"rationale":"Field XRF variability, substrate bias, false classifications, spatial variation, and use of highest readings are directly visible. HUD's statement that observation is the only way to ensure all readings are correctly recorded also exposes a record-integrity vulnerability. However, compliant HUD practice already prescribes locations, discourages repeats, restricts deletion, and requires all readings, so concealment of looks and consequential misuse are not directly established as prevalent.","source_ids":["SRC1","SRC2","SRC3"],"status":"PASS"}},"prior_art_disposition":"ADJACENT_PRIOR_ART","problem_evidence":{"finding":"The measurement-error and selective-maximum mechanisms are visible, and official guidance recognizes that complete recording requires oversight. Evidence is only partial because no retained source documents municipal inspectors actually suppressing unsuccessful firings or housing officials treating a chance maximum as confirmed evidence; current HUD guidance expressly requires all XRF readings and structured testing combinations.","source_ids":["SRC1","SRC2","SRC3"],"status":"PARTLY_SUPPORTED"},"research_id":"eoa_inverse_innovation_exp13_light_screen_20260806","schema_version":1,"screen_id":"E13P100","screen_survival":true,"search_lanes":{"component_combination":{"no_result_note":"No retained result combined a keyed multi-port XRF fixture, non-resettable per-trigger mechanical witness, firing-count-indexed family cutoff, opaque paired holdout port, and targeted laboratory assay.","queries":["portable XRF test stand fixture sample holder trigger interlock paired sample ports patent","XRF lead paint witness cassette mechanical counter trigger sampling fixture","XRF paint paired sample shutter confirmation specimen rail","family-wise false positive XRF inspection multiple locations Bonferroni"],"source_ids":["SRC1","SRC2","SRC4"]},"direct_problem_and_intervention":{"no_result_note":null,"queries":["lead paint XRF inspection multiple readings maximum result false positive repeated measurements HUD guidelines","paired adjacent paint sample XRF confirmatory laboratory analysis inspection protocol","paint inspection XRF inconclusive paint chip laboratory confirmation adjacent location HUD"],"source_ids":["SRC1","SRC2","SRC3"]},"products_practices_and_standards":{"no_result_note":null,"queries":["XRF lead paint inspection record every measurement audit trail instrument memory","site:thermofisher.com Niton XL2 lead paint analyzer data storage readings GPS audit trail trigger","portable XRF test stand fixture sample holder trigger interlock paired sample ports patent"],"source_ids":["SRC1","SRC3","SRC4"]},"synonyms_and_historical_terms":{"no_result_note":"Searches using testing combination, retest tolerance, multiple comparisons, multiplicity, look-elsewhere, and witness terminology found adjacent statistical and inspection controls but no exact physical combination.","queries":["lead paint XRF multiple comparisons multiplicity look elsewhere","testing combination XRF retest tolerance lead paint record readings","XRF lead paint witness cassette mechanical counter trigger sampling fixture"],"source_ids":["SRC1","SRC2"]}},"sources":[{"claims_supported":["HUD prescribes testing combinations and minimum locations, generally discourages repeat readings at one location, and requires reports to contain all XRF readings.","HUD recognizes substrate-dependent bias, regulates deletion of readings, recommends accredited laboratory confirmation, and states direct observation is the only way to ensure all readings are correctly recorded.","HUD requires applicable radiation licenses, training, safe operation, and NLLAP-recognized laboratories for relevant paint-chip analysis."],"publisher":"U.S. Department of Housing and Urban Development","source_id":"SRC1","source_type":"OFFICIAL_GUIDANCE","title":"Chapter 7: Lead-Based Paint Inspection","url":"https://www.hud.gov/sites/documents/LBPH09.PDF"},{"claims_supported":["A primary field evaluation found substantial XRF variability and substrate-dependent bias and estimated false-positive and false-negative classifications against laboratory measurements.","Laboratory confirmation ranges materially improved classification performance.","The study compared single and repeated readings and examined spatial variation and field quality control."],"publisher":"U.S. Environmental Protection Agency","source_id":"SRC2","source_type":"PRIMARY_RESEARCH","title":"Field Test of Lead-Based Paint Testing Technologies: Technical Report","url":"https://nepis.epa.gov/Exe/ZyPURL.cgi?Dockey=9101RUWW.TXT"},{"claims_supported":["An actual submitted practice used XRF to locate the highest lead concentrations and then verified those locations with bulk paint-chip laboratory analysis.","OSHA considered XRF selection of relatively highest concentrations acceptable for developing a worst-case occupational-exposure scenario, while limiting the interpretation to the specified regulatory context."],"publisher":"Occupational Safety and Health Administration","source_id":"SRC3","source_type":"OFFICIAL_GUIDANCE","title":"Use of an X-ray fluorescence analyzer (XRF) as a field screening tool for lead","url":"https://www.osha.gov/laws-regs/standardinterpretations/2014-09-23"},{"claims_supported":["The Niton XL2 stores more than 10,000 readings with spectra.","First-party software supports operator permissions, reports, certificates, remote operation, and data transfer.","The product offers positioning and stand accessories, but the page does not claim a tamper-evident per-trigger physical record or paired confirmation ports."],"publisher":"Thermo Fisher Scientific","source_id":"SRC4","source_type":"FIRST_PARTY_PRODUCT","title":"Niton XL2 XRF Analyzer","url":"https://www.thermofisher.com/order/catalog/product/de/en/XL2"}],"world_novelty_boundary":"This coarse public-web screen found adjacent practices and components but no exact integrated apparatus. It cannot establish world novelty, patentability, market size, expert acceptance, regulatory approval, or realized value; unsearched patents, procurement records, local procedures, discontinued products, and non-indexed literature may contain closer art."}