Advanced search options

Advanced Search Options 🞨

Browse by author name (“Author name starts with…”).

Find ETDs with:

in
/  
in
/  
in
/  
in

Written in Published in Earliest date Latest date

Sorted by

Results per page:

You searched for subject:(Herschel effect). One record found.

Search Limiters

Last 2 Years | English Only

No search limiters apply to these results.

▼ Search Limiters


Rochester Institute of Technology

1. Cardinali, Thomas J. An Investigation of the effect of an infrared post-exposure latent image in a 3M dry silver film.

Degree: School of Photographic Arts and Sciences (CIAS), 1982, Rochester Institute of Technology

An investigation to determine the effect of an infrared post-exposure on the latent image in blue sensitive 3M Dry Silver film 7842 was performed. The film was first given a step tablet exposure using the unfiltered output of a tungsten source at 2856 K. A Wratten87C filter was used with the same source to provide the second, infrared exposure over one half of the first exposure area. Absolute exposure and exposure reciprocity were tested. Processing was by immersion into a bath of 3M fluorocarbon FC-43 maintained at 127C/260F. The original objective, to cause Herschel effect bleaching of latent image, was not achieved. All IR exposures caused either a density increase, or, at low irradiance, no density change. A quanta ratio of 3*106 between the infrared and actinic exposures was obtained using an IR exposure time of 96 hours. The lack of any density decrease due to the Herschel effect apparently gives evidence to the theory that the Herschel effect is a rehalogenation process as reported by Farnell and Birch. The presence of halogen acceptors in the emulsion is believed to prevent the loss of latent image silver atoms due to rehalogenation. Further, the emulsion carrier and developing agents are IR absorbers and reduce the number of photons available for latent image destruction. Advisors/Committee Members: Morgan, David.

Subjects/Keywords: Photographic emulsions; Silver film; Herschel effect

Record DetailsSimilar RecordsGoogle PlusoneFacebookTwitterCiteULikeMendeleyreddit

APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6th Edition):

Cardinali, T. J. (1982). An Investigation of the effect of an infrared post-exposure latent image in a 3M dry silver film. (Thesis). Rochester Institute of Technology. Retrieved from https://scholarworks.rit.edu/theses/4300

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16th Edition):

Cardinali, Thomas J. “An Investigation of the effect of an infrared post-exposure latent image in a 3M dry silver film.” 1982. Thesis, Rochester Institute of Technology. Accessed March 05, 2021. https://scholarworks.rit.edu/theses/4300.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7th Edition):

Cardinali, Thomas J. “An Investigation of the effect of an infrared post-exposure latent image in a 3M dry silver film.” 1982. Web. 05 Mar 2021.

Vancouver:

Cardinali TJ. An Investigation of the effect of an infrared post-exposure latent image in a 3M dry silver film. [Internet] [Thesis]. Rochester Institute of Technology; 1982. [cited 2021 Mar 05]. Available from: https://scholarworks.rit.edu/theses/4300.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Cardinali TJ. An Investigation of the effect of an infrared post-exposure latent image in a 3M dry silver film. [Thesis]. Rochester Institute of Technology; 1982. Available from: https://scholarworks.rit.edu/theses/4300

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

.