September 20, 2012 Himansu Sahoo - Argonne National Lab Slide 1 Wireless Power and Data Acquisition System for Large Detectors Himansu Sahoo, Patrick De Lurgio, Zelimir Djurcic, Gary Drake, Andrew Kreps High Energy Physics Division 5 th Annual Postdoctoral Research Symposium Argonne National Laboratory September 20, 2012
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September 20, 2012 Himansu Sahoo - Argonne National Lab Slide 1
Wireless Power and Data Acquisition System for Large Detectors
Himansu Sahoo, Patrick De Lurgio, Zelimir Djurcic, Gary Drake, Andrew KrepsHigh Energy Physics Division
5th Annual Postdoctoral Research SymposiumArgonne National Laboratory
September 20, 2012
September 20, 2012 Himansu Sahoo - Argonne National Lab Slide 2
Motivation for R&D• With the detectors increasing in its size and
complexity, it is complication to use traditional approach where the power and data are transferred with electrical cables.
• Cabling may represent a significant cost and complication in the experiment.
• Leads to attenuation and deterioration of the signal.
• Cabling is not practical for detectors in remote location or hostile environment.
wireless : communication without wires.
Elimination of all cables, no physical connection to the detector.
Goals:
September 20, 2012 Himansu Sahoo - Argonne National Lab Slide 3
Approach
Two main components:
Wireless Power Transfer (Radio Frequency and Optical beam)
Wireless Data Transfer (802.11n wireless technology)
• The project is for large detectors with photomultiplier tubes (PMT).
• Our goal is to develop a PMT base that is powered wirelessly and transfers data wirelessly.
Transmitter Receiver
(transfer energy over distance)(high capacitance
battery)
CW voltage multiplier
(conversion from few to ~1000 V by
Cockcroft-Walton)
PMT
September 20, 2012 Himansu Sahoo - Argonne National Lab Slide 4