fall time, <of a detector>
time required for an output to fall from a stated high percentage to a stated lower percentage of the maximum value when a steady input is instantaneously removed
Note 1 to entry: A value of 90 % is usually considered to be the high percentage value, whereas a value of 10 % is usually considered to be the low percentage value.
Note 2 to entry: The fall time is expressed in seconds (s).
Note 3 to entry: This entry was numbered 845-05-61 in IEC 60050-845:1987.
Note 4 to entry: This entry was numbered 17-427 in CIE S 017:2011.