1202.6198 (R. V. Poleshchuk et al.)

An observation of a new class of afterpulses with delay time in the
range of 70-200 microseconds in classical vacuum photomultipliers    [PDF]

R. V. Poleshchuk, B. K. Lubsandorzhiev, R. V. Vasiliev

We present results of the first observation of afterpulses with extremely long (~120 microseconds) delay time from the main pulse in 8 inch classical vacuum photomultipliers.

View original: http://arxiv.org/abs/1202.6198