While using a quartz spectrograph and a fused quartz photoelectric cell, a large leak was observed immediately after shutting off the exciting light. This was apparently due to a phosphorescence of the fused quartz. Only a few seconds exposure sufficed to give the saturation value. The current decreased according to the regular law of decay of phosphorescence reaching zero in about one minute.
Proceedings of the Iowa Academy of Science
©1931 Iowa Academy of Science, Inc.
Emery, George V.
"Phosphorescence in a Photoelectric Cell of Fused Quartz,"
Proceedings of the Iowa Academy of Science, 38(1), 219-219.
Available at: https://scholarworks.uni.edu/pias/vol38/iss1/68