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| Titel |
Readout architecture for sub-nanosecond resolution TDC |
| VerfasserIn |
J. Marteau, B. Carlus, S. Gardien, C. Girerd, J.-C. Ianigro, J.-L. Montorio, D. Gibert, F. Nicollin |
| Konferenz |
EGU General Assembly 2012
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| Medientyp |
Artikel
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| Sprache |
Englisch
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| Digitales Dokument |
PDF |
| Erschienen |
In: GRA - Volume 14 (2012) |
| Datensatznummer |
250061044
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| Zusammenfassung |
| The DIAPHANE project is pluri-disciplinary collaboration between particle physicists and
geophysicists to perform the tomography of large geological structure mainly devoted to the
study of active volcanoes. The detector used for this tomography, hereafter referred to as
telescope, uses a standard, robust, cost-effective and well-known technology based on solid
plastic scintillator readout by photomultiplier(s) (either multichannel pixelized
PM or silicon PM). The electronics system is built on the concept of autonomous,
triggerless, smart sensor directly connected on a standard fast Ethernet network. First
radiographies have been performed on the Mont-Terri underground laboratory (St-Ursanne,
Switzerland) and on the active volcano of La Soufrière (Guadeloupe, Lesser Antilles,
France).
We present an upgrade of the readout architecture allowing to embed a sub-nanosecond
resolution TDC within the existing programmable logic to help in the background
rejection (rear flux, random coincidences) and to improve the detection purity and the
radiography quality. First results obtained are also presented and briefly discussed. |
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