A Periscope for Viewing and Photographing Radioactive Objects Underwater Page: 7 of 12
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makes focusing difficult at greater magnifications, most photographs
are taken at a maximum magnification of 2X. The optical quality of
the periscope is entirely satisfactory for both visual and photographic
work. A typical underwater photograph of a reactor component is shown
in Figure 5a. The only noticeable deviation in photographic accuracy
is the slight pincushion effect which is illustrated in Figure 5b.
The engineering drawings for fabrication and installation of the
periscope are on file at the Savannah River Laboratory.
1. F. C. Locke, "A Basin Facility for Examling Irradiated Nuclear
Fuel", USAEC Report DP-922, E. I. du Popt de Nemours & Co.,
Savannah River Laboratory, Aiken, S. C.I (1964).
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Locke, F. C. A Periscope for Viewing and Photographing Radioactive Objects Underwater, report, November 1, 1964; United States. (https://digital.library.unt.edu/ark:/67531/metadc1030032/m1/7/: accessed March 25, 2019), University of North Texas Libraries, Digital Library, https://digital.library.unt.edu; crediting UNT Libraries Government Documents Department.