Speaker
Satoru Uozumi
(Shinshu University)
Description
The Multi Pixel Photon Counter is a novel semiconducting photon counting
device made by Hamamatsu Photonics K.K. based on concept of Silicon Pho-
tomultiplier. The MPPC consists of 100-1600 APD (avalanche photo-diode)
pixels, and each pixel works in limited Geiger mode with inverse bias voltage
around 80 volts, which is a few volts above breakdown voltage. The MPPC
has excellent features such as high gain (105 -106 ), Excellent photon
detection efficiency (25-60%), low cost and torelance for magnetic field. On the
other hand, the MPPC has some points which are still necessary to be improved
to use at actual high energy physics experiments. In this talk I will show recent
development of the MPPC and its performance. Some basic properties, such
as gain, dark noise rate, inter-pixel cross-talk, photon detection efficiency will
be presented. as well as results of microscopic laser scan. We will also discuss
about practical application of the MPPC in various fields.
Primary author
Satoru Uozumi
(Shinshu University)
