Author/Authors :
Ma، نويسنده , , K.J. and Kang، نويسنده , , W.G. and Ahn، نويسنده , , J.K. and Choi، نويسنده , , S. and Choi، نويسنده , , Y. and Hwang، نويسنده , , M.J. and Jang، نويسنده , , J.S. and Jeon، نويسنده , , E.J. and Joo، نويسنده , , K.K. and Kim، نويسنده , , H.S. and Kim، نويسنده , , Jy-Yeon Kim، نويسنده , , S.B. and Kim، نويسنده , , S.H and Kim، نويسنده , , W. and Kim، نويسنده , , Y.D. and Lee، نويسنده , , J. and Lim، نويسنده , , I.T. and Oh، نويسنده , , Y.D. and Pac، نويسنده , , M، نويسنده ,
Abstract :
We have studied the afterpulse of a hemispherical photomultiplier tube for an upcoming reactor neutrino experiment. The timing, the amplitude, and the rate of the afterpulse for a 10 in. photomultiplier tube were measured with a 400 MHz FADC up to 16 μ s time window after the initial signal generated by an LED light pulse. The time and amplitude correlation of the afterpulse shows several distinctive groups. We describe the dependencies of the afterpulse on the applied high voltage and the amplitude of the main light pulse. The present data could shed light upon the general mechanism of the afterpulse.
