Paper B–4: High-Speed Direct-Recording Papers

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Publisher: SMPTE
Doc Type: Journal Article
Article Type: orig-research
Abstract: Silver halide emulsions for the direct recording of oscillograph traces represent a new development in the photographic industry. These emulsions will form an immediately visible image at writing speeds up to 10 in./sec when a super-high-pressure mercury arc is used as the light source. With the same source a latent image is formed at writing speeds up to at least 40,000 in./sec. Such latent images can be made visible within a fraction of a second by secondary exposures. The exposure which forms the image is a very intense radiation of wavelengths absorbed by the silver halide or it may be x-rays, gamma-rays or an electron beam, while the amplifying exposure is light-absorbed by the silver halide and is of moderate intensity. Good contrast between image and background and good stability of the background depend on the extreme reciprocity-law failure of these special emulsions, combined with their ability to be desensitized by low-intensity light. The contrast itself depends on the difference in light absorption between the silver of the image and nonimage areas. Properties of these direct-recording papers and mechanisms by which they function are discussed.
Publication Date: 1962-01-01
DOI: 10.5594/J18075XY
Link: https://doi.org/10.5594/J18075XY
Author(s): Heman D. Hunt

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Heman D. Hunt; Paper B–4: High-Speed Direct-Recording Papers, Journal of the SMPTE ( Volume: 71, Issue: 1A, 1962); SMPTE, 1962. Available at https://doi.org/10.5594/J18075XY

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Heman D. Hunt; Paper B–4: High-Speed Direct-Recording Papers, Journal of the SMPTE ( Volume: 71, Issue: 1A, 1962); SMPTE, 1962. Available at https://doi.org/10.5594/J18075XY

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Heman D. Hunt; Paper B–4: High-Speed Direct-Recording Papers, Journal of the SMPTE ( Volume: 71, Issue: 1A, 1962); SMPTE, 1962. Available at https://doi.org/10.5594/J18075XY

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<span class="citation">Heman D. Hunt; <cite>Paper B–4: High-Speed Direct-Recording Papers</cite>, Journal of the SMPTE ( Volume: 71, Issue: 1A, 1962); SMPTE, 1962. Available at <a href="https://doi.org/10.5594/J18075XY" target="_blank" rel="noopener">https://doi.org/10.5594/J18075XY</a></span>

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Heman D. Hunt; Paper B–4: High-Speed Direct-Recording Papers, Journal of the SMPTE ( Volume: 71, Issue: 1A, 1962); SMPTE, 1962
doi: 10.5594/J18075XY
url: https://doi.org/10.5594/J18075XY

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Heman D. Hunt; <cite id="bib-10-5594-j18075xy">Paper B–4: High-Speed Direct-Recording Papers</cite>, Journal of the SMPTE ( Volume: 71, Issue: 1A, 1962); SMPTE, 1962
<span class="doi">10.5594/J18075XY</span>
</li>