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Title:
On the basic mechanism of Pixelized Photon Detectors
Authors:
Otono, H.; Oide, H.; Yamashita, S.; Yoshioka, T.
Affiliation:
AA(Department of Physics, School of Science, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan), AB(Department of Physics, School of Science, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan), AC(International Center for Elementary Particle Physics, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan), AD(Neutron Science Laboratory, High Energy Accelerator Research Organization (KEK), 1-1 Oho, Tsukuba, Ibaraki 305-0801, Japan)
Publication:
Nuclear Instruments and Methods in Physics Research Section A, Volume 610, Issue 1, p. 397-399.
Publication Date:
10/2009
Origin:
ELSEVIER
DOI:
10.1016/j.nima.2009.05.139
Bibliographic Code:
2009NIMPA.610..397O

Abstract

A Pixelized Photon Detector (PPD) is a generic name for the semiconductor devices operated in the Geiger-mode, such as Silicon PhotoMultiplier and Multi-Pixel Photon Counter, which has high photon counting capability. While the internal mechanisms of the PPD have been intensively studied in recent years, the existing models do not include the avalanche process. We have simulated the multiplication and quenching of the avalanche process and have succeeded in reproducing the output waveform of the PPD. Furthermore our model predicts the existence of dead-time in the PPD which has never been numerically predicted. For searching the dead-time, we also have developed waveform analysis method using deconvolution which has the potential to distinguish neighboring pulses precisely. In this paper, we discuss our improved model and waveform analysis method.
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