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Development of novel Silicon detectors for next generation nuclear physics experiments (SIDET)

JRA21/JRA22. Development of novel Silicon detectors for next generation nuclear physics experiments (SIDET). O. Kiselev University of Mainz. Integrated  E – E detectors.  E-E scatter plots obtained after irradiation by heavy ions and alpha particles. Novel double-sided

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Development of novel Silicon detectors for next generation nuclear physics experiments (SIDET)

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  1. JRA21/JRA22 Development of novel Silicon detectors for next generation nuclear physics experiments (SIDET) O. Kiselev University of Mainz

  2. Integrated E – E detectors E-E scatter plots obtained after irradiation by heavy ions and alpha particles Novel double-sided monolithic E-E detector New technological process – Quasi-Selective Epitaxy Potential applications – GANIL, LNL Legnaro, LNS Catania, GSI

  3. Membrane-like E detectors Anodic dissolution of large area n – n+ epitaxial oxidated structures Passivated 52 µm thick transmission E strip detector Very thin strip detectors produced by new technology - Planar Process Partially Performed on Thin Silicon Membrane (PPPP process) Potential applications – GANIL, LNL Legnaro, LNS Catania, GSI

  4. Sub-segmented strip detectors 2D position sensitivity on one side (like pixel detectors) Same number and type of readout channels as strip detectors 30 - 50 µm position resolution is possible Large pads on back side for timing/trigger Thin dead layer on front side – low energy threshold Spectroscopy Absolutely novel technique! Potential applications – any nuclear physics experiment, medicine, safety

  5. Thick Si calorimeters Thick (7-10 mm) Li drifted Si detectors (SiLi) Thick (≥3 mm) Si PIN detectors • Very good energy resolution • High efficiency • Low noise • Simple and fast production • Any active area possible • Low price • Very good energy resolution • High efficiency • Low noise • Need an R&D on voltage termination at the detector periphery • Careful choice of the Si wafers • Very expensive • Very long and complicated production process • Almost no producers in the world Potential applications – GANIL, LNL Legnaro, LNS Catania, GSI

  6. Summary of JRA activity Membrane-like strip detector Integrated E-E detector • Particle and ion ID • Spectroscopy  • Position measurement • Self-triggering, TOF measurement Thick Si calorimeters Sub-segmented strip detector Full advanced telescope for charged particle detection Substantial improvement  Merging potential with some other JRAs – dialog is going on

  7. Partners: Institute of Electronic Materials Technology and Uni Warsaw; CCLRC Daresbury Laboratory; GSI Darmstadt, University of Mainz, Helsinki Institute of Technology; University of Huelva; CEA Saclay, GANIL, Caen; Mid-Sweden University, Uppsala University; INFN LNL, Legnaro, INFN LNS, Catania; LPSC Grenoble, France; associated partners PTI, St. Petersburg; RIMST, Zelenograd; BNL, Brookhaven Substantial support in many institutes will be available

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