Radiant energy – Coded record and readers; invisible radiant energy type
Patent
1976-10-20
1978-08-01
Smith, Alfred E.
Radiant energy
Coded record and readers; invisible radiant energy type
250416TV, 358111, G01N 2320
Patent
active
041045190
ABSTRACT:
A method for retrieving exposure information from film images includes selecting an exposed and developed photographic emulsion, regionally bombarding the emulsion with X-rays, regionally measuring and recording the resultant X-ray fluorescence therefrom. The method may also include the further step of translating the resultant fluorescence into a visual image. This method is carried out on suitable apparatus including a film holding device, X-ray generating device for generating an X-ray beam of a selected energy level and directing it regionally on the film, a measuring device for regionally measuring the X-rays fluorescence of the film and an image recording and/or translating device for translating the resultant fluorescence into a physical image.
REFERENCES:
patent: 3006238 (1961-10-01), Eberline
Moore, J. E. et al., "Automatic Direct-Reading X-Ray Spectrometry Application to Determinations of Silver," Analytical Chemistry, vol. 33, No. 1, Jan. 1961, pp. 61-64.
Baumgartner, W. V., "X-Ray Spectrometry Extends Film-Badge Dosimetry," Nucleonics, vol. 18, No. 8, Aug. 1960, pp. 76, 78 and 79.
Berman et al., "Balanced Filters for Silver K.alpha. X Rays," The Review of Scientific Instruments, vol. 41, No. 6, Jun. 1970, p. 870.
Grigsby T. N.
Smith Alfred E.
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