The effect of temperature on the persistence of long-persistence cathode-ray-tube screens

The persistence characteristics of several types of long-persistence cathode-ray-tube screens were measured with the ambient temperature of the tube faces varying from about 20° C to about 50° C. It was found that increasing temperature reduced the persistence time, the temperature coefficient of persistence-time reduction being higher for some types and lower for others. In some cases temperature coefficient also decreased with increase of excitation luminance.