{ "$schema": "/api/schemas/documents.schema.json", "apiVersion": "1.0.0", "generatedAt": "2026-06-17T23:49:39.838Z", "sourcePath": "src/main/data/docs", "docId": "10.5594-J09385", "document": { "abstract": "A rotating-mirror streak camera with 0.015 in./μsec writing speed, f/1 aperture and spherical reflection optics (save for a fused-quartz window) has been constructed. The camera, which is equally useful in the ultraviolet and visible light ranges, has a rotating mirror driven by a 1500-rps electric motor. A technique for molding film to the required spherical focal surface has been developed. The camera is used to study the electrical breakdown development rate and structure of 2-m air gaps by high-voltage discharges, particularly the very high-speed low-luminosity processes which precede the final brilliant arc phase. This last arc phase must be suppressed in order to avoid severe fogging of the record. Techniques are described for superimposing reference points on the image to define time axis, gap axis, spark position in space and writing speed. Photographs show the appearance of the filamentary corona, the growth of the glow discharge at velocities exceeding 108cm/sec and the discontinuous stepped progress of the spark leader.", "abstract$meta": { "confidence": "high", "note": "Parsed from NLM article XML (_source/SMPTE/HIGHWIRE/Source Bak/smptej/10.5594_J09385.xml)", "source": "parsed", "updated": "2026-05-22T19:19:44.900Z", "version": "smpte-journal-article-nlm@v1" }, "articleType": "research-article", "articleType$meta": { "confidence": "high", "note": "Parsed from NLM article XML (_source/SMPTE/HIGHWIRE/Source Bak/smptej/10.5594_J09385.xml)", "source": "parsed", "updated": "2026-05-22T19:19:44.900Z", "version": "smpte-journal-article-nlm@v1" }, "authors": [ "J. Dyson", "R. F. Hemmings", "R. T. Waters" ], "authors$meta": { "confidence": "high", "note": "Parsed from NLM article XML (_source/SMPTE/HIGHWIRE/Source Bak/smptej/10.5594_J09385.xml)", "source": "parsed", "updated": "2026-05-22T19:19:44.900Z", "version": "smpte-journal-article-nlm@v1" }, "copyright": { "holder": "Society of Motion Picture and Television Engineers, Inc.", "holder$meta": { "confidence": "high", "note": "Parsed from NLM article XML (_source/SMPTE/HIGHWIRE/Source Bak/smptej/10.5594_J09385.xml)", "source": "parsed", "updated": "2026-05-22T19:19:44.900Z", "version": "smpte-journal-article-nlm@v1" }, "year": "1961", "year$meta": { "confidence": "high", "note": "Parsed from NLM article XML (_source/SMPTE/HIGHWIRE/Source Bak/smptej/10.5594_J09385.xml)", "source": "parsed", "updated": "2026-05-22T19:19:44.900Z", "version": "smpte-journal-article-nlm@v1" } }, "copyright$meta": { "confidence": "high", "note": "Parsed from NLM article XML (_source/SMPTE/HIGHWIRE/Source Bak/smptej/10.5594_J09385.xml)", "source": "parsed", "updated": "2026-05-22T19:19:44.900Z", "version": "smpte-journal-article-nlm@v1" }, "docId": "10.5594-J09385", "docId$meta": { "confidence": "high", "note": "Derived from DOI 10.5594/J09385", "source": "parsed", "updated": "2026-05-22T19:19:44.900Z", "version": "smpte-journal-article-nlm@v1" }, "docLabel": "Journal of the SMPTE ( Volume: 70, Issue: 9, September 1961)", "docLabel$meta": { "confidence": "medium", "note": "Composed from journal title, volume, issue and date", "source": "inferred", "updated": "2026-05-22T19:19:44.900Z", "version": "smpte-journal-article-nlm@v1" }, "docTitle": "An f/1 Streak Camera for Spark Studies in Both Ultraviolet and visible", "docTitle$meta": { "confidence": "high", "note": "Parsed from NLM article XML (_source/SMPTE/HIGHWIRE/Source Bak/smptej/10.5594_J09385.xml)", "source": "parsed", "updated": "2026-05-22T19:19:44.900Z", "version": "smpte-journal-article-nlm@v1" }, "docType": "Journal Article", "docType$meta": { "confidence": "high", "note": "NLM
— SMPTE journal paper", "source": "inferred", "updated": "2026-05-22T19:19:44.900Z", "version": "smpte-journal-article-nlm@v1" }, "doi": "10.5594/J09385", "doi$meta": { "confidence": "high", "note": "Parsed from NLM article XML (_source/SMPTE/HIGHWIRE/Source Bak/smptej/10.5594_J09385.xml)", "source": "parsed", "updated": "2026-05-22T19:19:44.900Z", "version": "smpte-journal-article-nlm@v1" }, "href": "https://doi.org/10.5594/J09385", "href$meta": { "confidence": "high", "note": "Constructed from DOI 10.5594/J09385", "source": "inferred", "updated": "2026-05-22T19:19:44.900Z", "version": "smpte-journal-article-nlm@v1" }, "issn": { "print": "0361-4573", "print$meta": { "confidence": "high", "note": "Parsed from NLM article XML (_source/SMPTE/HIGHWIRE/Source Bak/smptej/10.5594_J09385.xml)", "source": "parsed", "updated": "2026-05-22T19:19:44.900Z", "version": "smpte-journal-article-nlm@v1" } }, "issn$meta": { "confidence": "high", "note": "Parsed from NLM article XML (_source/SMPTE/HIGHWIRE/Source Bak/smptej/10.5594_J09385.xml)", "source": "parsed", "updated": "2026-05-22T19:19:44.900Z", "version": "smpte-journal-article-nlm@v1" }, "journalAcronym": "MIJR", "journalAcronym$meta": { "confidence": "high", "note": "Parsed from journal_metadata XML (_source/SMPTE/APTARA/DL Project Files/08202015 BACKFILE JOURNAL FRESH/smptej_70_9/MIJR15Vol70No9.xml)", "source": "parsed", "updated": "2026-06-16T18:14:32.753Z", "version": "smpte-journal-issue-xml@v1" }, "number": "9", "number$meta": { "confidence": "high", "note": "Parsed from NLM article XML (_source/SMPTE/HIGHWIRE/Source Bak/smptej/10.5594_J09385.xml)", "source": "parsed", "updated": "2026-05-22T19:19:44.900Z", "version": "smpte-journal-article-nlm@v1" }, "pages": "725–730", "pages$meta": { "confidence": "high", "note": "Parsed from NLM article XML (_source/SMPTE/HIGHWIRE/Source Bak/smptej/10.5594_J09385.xml)", "source": "parsed", "updated": "2026-05-22T19:19:44.900Z", "version": "smpte-journal-article-nlm@v1" }, "publicationDate": "1961-09-01", "publicationDate$meta": { "confidence": "high", "note": "Day absent in NLM source — padded to 01", "source": "parsed", "updated": "2026-05-22T19:19:44.900Z", "version": "smpte-journal-article-nlm@v1" }, "publisher": "SMPTE", "publisher$meta": { "confidence": "high", "note": "Normalised to registry \"SMPTE\" convention from NLM publisher-name (The Society of Motion Picture and Television Engineers)", "source": "inferred", "updated": "2026-05-22T19:19:44.900Z", "version": "smpte-journal-article-nlm@v1" }, "publisherLocation": { "city": "White Plains, NY", "city$meta": { "confidence": "high", "note": "Parsed from NLM article XML (_source/SMPTE/HIGHWIRE/Source Bak/smptej/10.5594_J09385.xml)", "source": "parsed", "updated": "2026-05-22T19:19:44.900Z", "version": "smpte-journal-article-nlm@v1" }, "country": "USA", "country$meta": { "confidence": "high", "note": "Parsed from journal_metadata XML (_source/SMPTE/APTARA/DL Project Files/08202015 BACKFILE JOURNAL FRESH/smptej_70_9/MIJR15Vol70No9.xml)", "source": "parsed", "updated": "2026-06-16T18:14:32.753Z", "version": "smpte-journal-issue-xml@v1" } }, "publisherLocation$meta": { "confidence": "high", "note": "Parsed from NLM article XML (_source/SMPTE/HIGHWIRE/Source Bak/smptej/10.5594_J09385.xml)", "source": "parsed", "updated": "2026-05-22T19:19:44.900Z", "version": "smpte-journal-article-nlm@v1" }, "status": { "active": true, "active$meta": { "confidence": "medium", "note": "No explicit status in NLM source — journal articles default active", "source": "inferred", "updated": "2026-05-22T19:19:44.900Z", "version": "smpte-journal-article-nlm@v1" } }, "volume": "70", "volume$meta": { "confidence": "high", "note": "Parsed from NLM article XML (_source/SMPTE/HIGHWIRE/Source Bak/smptej/10.5594_J09385.xml)", "source": "parsed", "updated": "2026-05-22T19:19:44.900Z", "version": "smpte-journal-article-nlm@v1" } } }