Statistical current monitor for the cosmic ray experiment Pierre Auger

The air fluorescence telescopes are one essential part of the Pierre Auger Project, currently under construction in Argentina. With a pixel camera of 440 photomultiplier tubes the telescopes observe fluorescence light induced by cosmic ray extensive air showers passing through the atmosphere. In thi...

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Bibliographic Details
Published in:IEEE transactions on nuclear science 2003-08, Vol.50 (4), p.1204-1207
Main Authors: Kleifges, M., Menshikov, A., Tcherniakhovski, D., Gemmeke, H.
Format: Article
Language:English
Subjects:
Anodes
Atmosphere
Augers
Camera tubes
Cameras
Devices
Electronics
Field programmable gate arrays
Fluctuations
Fluorescence
Logic
Monitoring
Monitors
Photomultipliers
Statistical analysis
Telescopes
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Summary:The air fluorescence telescopes are one essential part of the Pierre Auger Project, currently under construction in Argentina. With a pixel camera of 440 photomultiplier tubes the telescopes observe fluorescence light induced by cosmic ray extensive air showers passing through the atmosphere. In this paper we report on a method to monitor the dc anode current in each photomultiplier by statistical analysis of the signal fluctuations. The method has in our case the advantage that we were able to implement it using free resources of FPGA logic; therefore no additional electronics is required. We present details of the current monitor design and its performance measured with a prototype device.
ISSN:0018-9499
1558-1578
DOI:10.1109/TNS.2003.815311