A Micromegas-based telescope for muon tomography: The WatTo experiment

This paper reports about the first Micromegas-based telescope built for applications in muon tomography. The telescope consists of four, 50×50cm2 resistive multiplexed Micromegas with a 2D layout and a self-triggering electronics based on the Dream chip. Thanks to the multiplexing, the four detector...

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Bibliographic Details
Published in:Nuclear instruments & methods in physics research. Section A, Accelerators, spectrometers, detectors and associated equipment Accelerators, spectrometers, detectors and associated equipment, 2016-10, Vol.834, p.223-228
Main Authors: Bouteille, S., Attié, D., Baron, P., Calvet, D., Magnier, P., Mandjavidze, I., Procureur, S., Riallot, M., Winkler, M.
Format: Article
Language:English
Subjects:
Genetic multiplexing
Micro Pattern Gaseous Detectors
Micromegas
MPGD
Muography
Muon Tomography
Nuclear Experiment
Physics
Volcanology
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Summary:This paper reports about the first Micromegas-based telescope built for applications in muon tomography. The telescope consists of four, 50×50cm2 resistive multiplexed Micromegas with a 2D layout and a self-triggering electronics based on the Dream chip. Thanks to the multiplexing, the four detectors were readout with a single Front-End Unit. The high voltages were provided by a dedicated card using low consumption CAEN miniaturized modules. A nano-PC (Hummingboard) ensured the HV control and monitoring coupled with a temperature feedback as well as the data acquisition and storage. The overall consumption of the instrument yielded 30W only, i.e. the equivalent of a standard bulb. The telescope was operated outside during 3.5months to image the water tower of the CEA-Saclay research center, including a 1.5-month campaign with solar panels. The development of autonomous, low consumption muon telescopes with unprecedented accuracy opens new applications in imaging as well as in the field of muon metrology.
ISSN:0168-9002
1872-9576
DOI:10.1016/j.nima.2016.08.002