Understanding Neutron Radiography Reading V-Kodak Part 2 of 3

Manual Processing
When tank processing is used, the routine is, first, to mount the exposed film
on a hanger immediately after it is taken from the cassette or film holder, or
removed from the factory-sealed envelope. (See Figure 71) Then the film can
be conveniently immersed in the developer solution, stop bath, fixer solution,
and wash water for the predetermined intervals, and it is held securely and
kept taut throughout the course of the procedure. At frequent intervals during
processing, radiographic films must be agitated. Otherwise, the solution in
contact with the emulsion becomes exhausted locally, affecting the rate and
evenness of development or fixation. Another precaution must be observed:
The level of the developer solution must be kept constant by adding
replenisher. This addition is necessary to replace the solution carried out of
the developer tank by the films and hangers, and to keep the activity of the
developer constant.
Charlie Chong/ Fion Zhang
Radiography in Modern Industry. Rochester, NY: Eastman Kodak Co. 1980