On the Detective Quantum Efficiency of Television Camera Tubes

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Publisher: SMPTE — White Plains, NY, USA
Doc Type: Journal Article
Content Type: Original Research
Abbreviated Title: J SMPTE
Volume: 68, No. 7, pp. 462–466
Abstract: The detective quantum efficiency of two RCA image orthicons (5820 and 6849) and one RCA vidicon (6326) is computed from unpublished signal, noise and resolution data generously supplied by the manufacturer. The concept of detective quantum efficiency used here is identical with the concept of quantum efficiency introduced by Rose in 1946, and is defined as the square of the ratio of the measured signal-to-noise ratio to the maximum possible signal-to-noise ratio under the same external conditions, where the maximum possible signal-to-noise ratio is set by the statistical fluctuations in the number of the photons in the background. The detective quantum efficiency Q is presented as a function of the wavelength of the photocathode radiation, of the irradiation of the cathode and of the line-number of the target. The maximum value of Q with respect to variation of the wavelength, irradiation and line-number is 2.65% for the 5820 and 4.35% for the 6849 image orthicons and only 0.084% for the 6326 vidicon.
Publication Date: 1959-07-01
DOI: 10.5594/J13806
ISSN: Print: 0361-4573
Link: https://doi.org/10.5594/J13806
Author(s): R. Clark JonesResearch Laboratory, Polaroid Corporation, Cambridge 39, Mass.
Copyright: © 1959 Society of Motion Picture and Television Engineers, Inc.

Bibliographic Reference(s)

A Unified Approach to the Performance of Photographic Film, Television Pickup Tubes, and the Human Eye [Active]
1. Jones Clark R. , “Performance of detectors for visible and infrared radiation,” Advances in Electronics , 5 : 1 – 96 , 1953 . EXTERNAL
10. Jones Clark R. , “Quantum efficiency o human vision,” J. Opt. Soc. Am. , in press. EXTERNAL
11. Sommer Alfred H. , “Multi-alkali photo cathodes,” Trans. Inst. Rad. Engrs. , NS-3, 8 – 12 , 1956 . EXTERNAL
3. Rose Albert , “Sensitivity performance of the human eye on an absolute scale,” J. Opt. Soc. Am. , 38 : 196 – 208 , 1948 . EXTERNAL
4. Rose Albert , “Television pickup tubes and the problem of vision,” Advances in Electronics , 1 : 131 – 166 , 1948 . EXTERNAL
5. Jones Clark R. , “On the quantum efficiency of scotopic and photopic vision,” J. Wash. Acad. Sci. , 47 : 100 – 108 , 1957 . EXTERNAL
6. Fry T. C. , Probability and Its Engineering Uses , Van Nostrand , New York , 1929 , pp. 221 – 223 . EXTERNAL
7. RCA Tube Handbook , No. HB-3, published by Radio Corp. of America, Tube Div., Commercial Engineering , Harrison, N.J. EXTERNAL
8. Schade Otto H. , “Electro-optical characteristics of television systems,” RCA Rev. , 9 : 5 – 37 , 245 – 286 , 490 – 530 , 653 – 686 , 1948 . EXTERNAL
9. Jones Clark R. , “On the quantum efficiency of photographic negatives,” Phot. Sci. & Eng. , 2 : 57 – 65 , 1958 . EXTERNAL

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R. Clark Jones; On the Detective Quantum Efficiency of Television Camera Tubes, Journal of the SMPTE ( Volume: 68, Issue: 7, July 1959); SMPTE, 1959. Available at https://doi.org/10.5594/J13806

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R. Clark Jones; On the Detective Quantum Efficiency of Television Camera Tubes, Journal of the SMPTE ( Volume: 68, Issue: 7, July 1959); SMPTE, 1959. Available at https://doi.org/10.5594/J13806

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R. Clark Jones; On the Detective Quantum Efficiency of Television Camera Tubes, Journal of the SMPTE ( Volume: 68, Issue: 7, July 1959); SMPTE, 1959. Available at https://doi.org/10.5594/J13806

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<span class="citation">R. Clark Jones; <cite>On the Detective Quantum Efficiency of Television Camera Tubes</cite>, Journal of the SMPTE ( Volume: 68, Issue: 7, July 1959); SMPTE, 1959. Available at <a href="https://doi.org/10.5594/J13806" target="_blank" rel="noopener">https://doi.org/10.5594/J13806</a></span>

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R. Clark Jones; On the Detective Quantum Efficiency of Television Camera Tubes, Journal of the SMPTE ( Volume: 68, Issue: 7, July 1959); SMPTE, 1959
doi: 10.5594/J13806
url: https://doi.org/10.5594/J13806

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<span class="doi">10.5594/J13806</span>
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