Special Circuits for an X-Ray Television Camera Chain

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Publisher: SMPTE
Doc Type: Journal Article
Article Type: research-article
Abstract: Medical application of a TV camera together with an x-ray image-intensifier tube requires highest sensitivity and automatic adaptation to different x-ray doses. Maximum sensitivity of the special x-ray TV system has been obtained by imaging of the circular picture on the whole of the also circular target of the vidicon or Plumbicon with the aid of a large-aperture lens. Overscanning the target necessitates a circular blanking signal. The transistor circuit generating this signal is described with emphasis on stability problems. Automatic sensitivity control is effected by light-dependent resistors in the video amplifier. The control voltage is obtained by measuring the peak value of the signal either over the whole of the picture or in a central circular area only.
Publication Date: 1966-07-01
DOI: 10.5594/J07128
Link: https://doi.org/10.5594/J07128
Author(s): T. Heise, J. E. Marquerinck, C. J. Seur

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T. Heise, J. E. Marquerinck, and C. J. Seur; Special Circuits for an X-Ray Television Camera Chain, Journal of the SMPTE ( Volume: 75, Issue: 7, July 1966); SMPTE, 1966. Available at https://doi.org/10.5594/J07128

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T. Heise, J. E. Marquerinck, and C. J. Seur; Special Circuits for an X-Ray Television Camera Chain, Journal of the SMPTE ( Volume: 75, Issue: 7, July 1966); SMPTE, 1966. Available at https://doi.org/10.5594/J07128

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<span class="citation">T. Heise, J. E. Marquerinck, and C. J. Seur; <cite>Special Circuits for an X-Ray Television Camera Chain</cite>, Journal of the SMPTE ( Volume: 75, Issue: 7, July 1966); SMPTE, 1966. Available at <a href="https://doi.org/10.5594/J07128" target="_blank" rel="noopener">https://doi.org/10.5594/J07128</a></span>

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T. Heise, J. E. Marquerinck, and C. J. Seur; Special Circuits for an X-Ray Television Camera Chain, Journal of the SMPTE ( Volume: 75, Issue: 7, July 1966); SMPTE, 1966
doi: 10.5594/J07128
url: https://doi.org/10.5594/J07128

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<li>
T. Heise, J. E. Marquerinck, and C. J. Seur; <cite id="bib-10-5594-j07128">Special Circuits for an X-Ray Television Camera Chain</cite>, Journal of the SMPTE ( Volume: 75, Issue: 7, July 1966); SMPTE, 1966
<span class="doi">10.5594/J07128</span>
</li>