1 / 17

Genetic multiplexing: towards new applications of MPGDs

Genetic multiplexing: towards new applications of MPGDs. Sébastien Procureur CEA-Saclay. Content. → Introduction & genetic multiplexing. → Results with a 1D 50x50 cm² Micromegas. → 2D, resistive , multiplexed detector and industrialization. → Some large scale applications.

varen
Download Presentation

Genetic multiplexing: towards new applications of MPGDs

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript


  1. Genetic multiplexing: towards new applications of MPGDs Sébastien Procureur CEA-Saclay

  2. Content → Introduction & geneticmultiplexing → Resultswith a 1D 50x50 cm² Micromegas → 2D, resistive, multiplexed detector and industrialization → Some large scale applications • Homeland security • Volcanology • Soil exploration (archeology, mining) • FET-Open proposition (H2020) → Conclusion and perspectives Genetic Multiplexing TIPP14, 04/06/2014 S.Procureur

  3. MPGDs & real world → After ~20 years of operation, Micro-Pattern Gaseous Detectors are widely used in particle physics, but applications outside labs are still very rare. The reasons of their success in fundamental research: excellent track & detection capabilities • Spatial resolutions ≤ 0.1 mm • Time resolution ≤ 10 ns • Efficiency close to 100% for charged particles • Cheap • Small radiation length However, several drawbacks often make them incompatible with other applications 2009-2014: Process industrialization (GEM foil, bulk MM) • Large scale production • Robustness • Size of required electronics • (Gas, HV) ~2010: Resistive strip technology (MM), THGEM 2012: Genetic multiplexing Genetic Multiplexing TIPP14, 04/06/2014 S.Procureur

  4. Genetic multiplexing Starting point: use redundancy in MPGD signal → in most cases, a signal isrecorded on at least 2 neighbouringstrips Wemake use of thisredundancy to combine channelswithstrips in such a waythat 2 givenchannels are connected to neighbouring stripsonly once in the detector The sequence of channelsuniquely codes the position on the detector… 1 2 → the connection {channels}n ⟷ {strips}pisrepresented by a p list of channelnumbers → degree of multiplexingcanbeeasilyadapted to incident particle flux → more information: S. Procureur, R. Dupré and S. Aune, NIM A729 (2013), 888 For n channels, there are a priori n(n-1)/2 unordered doublets combinations, and thus one canequip a detector with at most p = n(n-1)/2+1 strips Genetic Multiplexing TIPP14, 04/06/2014 S.Procureur

  5. 1st prototype (1D) 50x50 cm² active area, readwith n = 61 channels (highest prime numberbelow 64…) - 488 micron pitch - could have equiped up to 61x60/2+1=1831 strips (~90 cm) - p= 1024 strips → Smallest k-upletrepeated: k=15 Genetic Multiplexing TIPP14, 04/06/2014 S.Procureur

  6. 1st prototype (1D) 50x50 cm² active area, readwith n = 61 channels (highest prime numberbelow 64…) - 488 micron pitch - could have equiped up to 61x60/2+1=1831 strips (~90 cm) - p= 1024 strips PCB Bulk connector mesh defect 50 cm Strip capacitance: 1.3 nF!! Genetic Multiplexing TIPP14, 04/06/2014 S.Procureur

  7. 1st prototype (1D) Prototype tested in the CLAS12 cosmicbench (60x60 cm² couple of scintillators) Efficiency @ 430 V Y [mm] artefact of the cosmic bench X [mm] → principleworks → ~ 90% averageefficiency → canbeimprovedwithresistivestriptechnology (more gain & more robust) Genetic Multiplexing TIPP14, 04/06/2014 S.Procureur

  8. 2nd prototype (2D) Resistivestrips, 50x50 cm² active area, readoutwith 2 connectors (1 for X, 1 for Y) → strategy: layout & 1st prototypes @ CERN, and then sent to industrial ELVIA. Failed whenordereddirectly to the industrial. M-Cube project (D. Attié & S. Procureur) Genetic Multiplexing TIPP14, 04/06/2014 S.Procureur

  9. 2nd prototype (2D) Resistivestrips, 50x50 cm² active area, readoutwith 2 connectors (1 for X, 1 for Y) → strategy: layout & 1st prototypes @ CERN, and then sent to industrial ELVIA. Failed whenordereddirectly to the industrial. M-Cube project (D. Attié & S. Procureur) → 2 detectors in cosmicbench (n°3 & 4) Genetic Multiplexing TIPP14, 04/06/2014 S.Procureur

  10. Results with cosmics (last week!) event display efficiency @ 460V 3-X 3-Y 4-X 4-Y → Working at full efficiency → Still room for improvement on S/N → Analysis in progress (PhD S. Bouteille) → Waiting for 4 MM from ELVIA company Genetic Multiplexing TIPP14, 04/06/2014 S.Procureur

  11. Large scale applications Reduction of electronics & large production capabilities open new fields of applications → Homeland security: scan large volumes requires large detectors with high resolution Saclay (Fr) Decision Science (US) S. Quillin M. Riallot (M-Cube) AWE (UK) AECL (Canada) + G. Jonkmans Genetic Multiplexing TIPP14, 04/06/2014 S.Procureur

  12. Large scale applications - 2 Volcanology: large area detectors withlowconsumption first resultswith 80x80 cm² scintillators (~1 cm resolution) N. Lesparreet al. → Work in progress for HV power supply@ lowconsumption, interactions with CAEN Input: 12V (battery) Output: up to 2.1 kV Selectable Imax Very good stability in time 0.5 W per channel! Photo: G. Di Maio Genetic Multiplexing TIPP14, 04/06/2014 S.Procureur

  13. Large scale applications - 3 Archeology and mining exploration: Air box in soil Cylindrical detectors (a la CLAS12) 20 days 10 days 5 days 1 day → Contacts with LRMH (Historical Monuments), AREVA, Schlumberger Genetic Multiplexing TIPP14, 04/06/2014 S.Procureur

  14. Proposal for next FET-Open call Goal: develop applications & interactions withindustrials on MPGDs • Volcanology (IPG-P, IPN-L) • Homeland (Saclay, Demokritos, Tel Aviv, Lingacom) • Medicalimaging (Zaragoza, IMATEK) • Geology (LSBB, IRSN) • CO2storage/survey (Schlumberger) • Mining exploration in boreholes (AREVA) • Archeology (LRMH) • Portable dosimetry (Landauer) + ELVIA Genetic Multiplexing TIPP14, 04/06/2014 S.Procureur

  15. Conclusion & perspectives We have builtanotherMicromegas: → ~100 µm resolution (nothing new) → full efficiency (nothing new) → 2D readout (nothing new but nice) → large area (not soold) → robust (resistivetechnology, recent) → doable by industrial (quiterecent) → only 122 channelsinstead of ~ 2,000 (new) • Last piece of a long maturityprocess, whichfinally opens the door to a bunch • of really new applications, including in the industrial world & in society Nextsteps: - Characterization of same detectors, but from ELVIA company - Tomography of 1 m3 for homeland security - Tomography of the CEA water tower (no volcano at Saclay!) Photo: M. Vandenbroucke Genetic Multiplexing TIPP14, 04/06/2014 S.Procureur

  16. The (unofficial) M-Cube team → David Attié → Simon Bouteille (student) →IrakliMandjavidze → Sébastien Procureur → Marc Riallot → Maxence Vandenbroucke (post-doc) → and manythanks to Rui and his team @ CERN Genetic Multiplexing TIPP14, 04/06/2014 S.Procureur

More Related