that part of the output current of a photoelectric detector which is caused by incident radiation
Note 1 to entry: In photomultipliers a distinction has to be made between the cathode photocurrent and the anode photocurrent.
Note 2 to entry: The photocurrent is expressed in ampere (A).
Note 3 to entry: This entry was numbered 845-05-52 in IEC 60050-845:1987.
Note 4 to entry: This entry was numbered 17-893 in CIE S 017:2011.