Muon detection, towards societal applications of MPGD Thanks to organizers and city mayor! Sébastien Procureur

Features of cosmic muons   Free (already a good point at that time) Natural Continuous radiation Highly penetrating Propagating along straight lines (on average)   Hidden chambers in pyramids (Alvarez, 1970) Volcanology (Tanaka, Diaphane collaboration)

2D Muography and MPGD at Saclay   If 50 cm long telescope… Scintillator (~1 cm resolution) Micromegas (0.3 mm resolution) Revolution for precise imaging WatTo exp. already elicited interests from IAEA and French Interior Ministry Other applications in archeological or mining prospections: cf ASACUSA tumulus cavity in soil mining

Beyond muography: 3D tomography   Direct application for homeland security (Los Alamos, 2003) Many projects in UK, Italy, Canada, China, Russia, France, Israel,…

3D tomography and MPGD at Saclay   Performance with compact (50 cm between detectors) setup 1st goal of DNDO for detection of 4kg of U in 2016… First test on a small part with Lead brick, simple POCA …today New applications for precise imaging are now emerging if longer exposure… thanks to spatial resolution of MPGD Detection in 2’ possible

3D tomography with longer exposure   Wood board! Limestone Pliers Lead brick Iron structure in the limestone (from Historic Monuments) Not neutrons, not X-rays… just free muons! And with compact, transportable setup

Muon metrology   Muon metrology, e.g. deformation measurement of buildings   But can it work with (necessarily) compact instruments?      

Muon metrology   Buildings in cities (old careeers, metro tunnels, vibrations, …) Old monuments on unstable ground Hydro dams Bridge (road, pillars) Tunnel construction (localization) Landslide … Elicited interests from several civil engineering companies

Development of muon telescopes at Saclay with unprecedented resolution Conclusion Development of muon telescopes at Saclay with unprecedented resolution → using genetic multiplexing => low consumption, cheap, transportable, autonomous → without external trigger (DREAM auto-trigger function) These instruments have lots of applications, existing or new → muography: 10-50 times better resolutions than existing telescopes → tomography: very compact instruments, transportable for in situ experiments → metrology: can now reach positioning at 20-40 m distance, even with obstacles Elicited many interests in different fields, from government to industry There is a lot to do, and we are of course open to collaborations!

 

Addendum: genetic multiplexing with pixels Genetic multiplexing presented in 3rd MPGD conference (Zaragoza) questions whether it can be extended to 2D (pixels)   → fully isotropic, no unfavoured direction → but virtually impossible to make connections with electronics!

Addendum: genetic multiplexing with pixels A practical solution is to multiplex on the basis of 2 prime numbers p and q           l: returning strip pitch (~0.2 mm) px: pixel pitch along one direction  

Addendum: genetic multiplexing with pixels Example with 1 and 2 track events (color is time) (NB: as in 1D, the degree of multiplexing can be adjusted to the flux)