Understanding Neutron Radiography Reading V-Kodak Part 2 of 3

♦ Control of Temperature and Time
Because the temperature of the processing solutions has a decided influence
on their activity, careful control of this factor is very important. It should be a
rule that the developer be stirred and the temperature be checked
immediately before films are immersed in it so that they can be left in the
solution for the proper length of time. Ideally, the temperature of the
developer solution should be 68°F (20°C). A temperature below 60°F (16°C)
retards the action of the chemical and is likely to result in underdevelopment,
whereas an excessively high temperature not only may destroy the
photographic quality by producing fog but also may soften the emulsion to the
extent that it separates from the base. When, during extended periods, the
tap water will not cool the solutions to recommended temperatures, the most
effective procedure is to use mechanical refrigeration. Conversely, heating
may be required in cold climates.
Charlie Chong/ Fion Zhang
Radiography in Modern Industry. Rochester, NY: Eastman Kodak Co. 1980