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Optical Engineering

Testbench to characterize pixels of the Major Atmospheric Gamma-ray Imaging Cherenkov (MAGIC) telescope
Author(s): Fabrizio Lucarelli; M. Camara; Pedro Antoranz; Jose Miguel Miranda Pantoja; Mariano Asensio; J. A. Barrio; Maria Victoria Fonseca Gonzalez
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Paper Abstract

Photomultipliers have a wide range of applications, from nuclear medicine to nuclear physics. In particular, they are commonly used in high energy physics and astrophysics. The Major Atmospheric Gamma-ray Imaging Cherenkov (MAGIC) telescope is an example of their applications. This work presents a test system for the characterization of the transient response of the photomultipliers used as fast light detectors in the telescope. The bias of the photomultiplier is described, taking into account its effects in the response to fast light pulses. Two methods are used to generate these pulses: 1. a specifically designed pulse generator, and 2. a plastic scintillator. For the former case, we also calculate the anode charge we expect in this setup to cross-check it with the actual measurements.

Paper Details

Date Published: 1 August 2006
PDF: 7 pages
Opt. Eng. 45(8) 084003 doi: 10.1117/1.2336418
Published in: Optical Engineering Volume 45, Issue 8
Show Author Affiliations
Fabrizio Lucarelli, Univ. Complutense de Madrid (Spain)
M. Camara, Univ. Complutense de Madrid (Spain)
Pedro Antoranz, Univ. Complutense de Madrid (Spain)
Jose Miguel Miranda Pantoja, Univ. Complutense de Madrid (Spain)
Mariano Asensio, Univ. Complutense de Madrid (Spain)
J. A. Barrio, Univ. Complutense de Madrid (Spain)
Maria Victoria Fonseca Gonzalez, Univ. Complutense de Madrid (Spain)

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