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An Analog Delay Compensation System to Reduce the Effect of Variable Transit Time in PMTs.

An Analog Delay Compensation System to Reduce the Effect of Variable Transit Time in PMTs.

Authors :
Tejedor, Luis A.
Boix, Juan
Dubois, Florent
Konno, Yusuke
Herranz, Diego
Barrio, Juan A.
Alonso, Jos I.
Source :
IEEE Transactions on Nuclear Science. 7/1/2013 Part 2, Vol. 60 Issue 4, p2905-2911. 7p.
Publication Year :
2013

Abstract

Photomultiplier transit time variation due to different high-voltage settings is a significant problem that degrades the performance of the systems that try to recognize fast image patterns in arrays of this type of photosensors. This effect is especially harmful for the performance of the trigger system of Cherenkov telescope cameras. With the aim of overcoming this effect, an electronic system has been designed, manufactured, and tested. This system can reduce the delay differences by introducing the appropriate variable delay for each photomultiplier (PMT), which is calculated by making use of a delay meter specially designed for this application. The specifications of the system have been defined by means of simulations and the measurements fulfill the requirements. The circuits used in this delay compensation system, as well as the simulations and measurements of the prototypes, are presented in this paper. [ABSTRACT FROM PUBLISHER]

Details

Language :
English
ISSN :
00189499
Volume :
60
Issue :
4
Database :
Academic Search Index
Journal :
IEEE Transactions on Nuclear Science
Publication Type :
Academic Journal
Accession number :
89773635
Full Text :
https://doi.org/10.1109/TNS.2013.2271300