Development of novel Silicon detectors for next generation nuclear physics experiments (SIDET)
description
Transcript of Development of novel Silicon detectors for next generation nuclear physics experiments (SIDET)
Development of novel Silicon detectors for next generation nuclear physics experiments
(SIDET)
O. KiselevUniversity of Mainz
JRA21/JRA22
Integrated E – E detectors
New technological process – Quasi-Selective Epitaxy
E-E scatter plots obtained after irradiation by heavy ions and alpha particles
Novel double-sided monolithic E-E detector
Potential applications – GANIL, LNL Legnaro, LNS Catania, GSI
Membrane-like E detectors
Anodic dissolution of large area n – n+ epitaxial oxidated structures
Potential applications – GANIL, LNL Legnaro, LNS Catania, GSI
Very thin strip detectors produced by new technology - Planar Process Partially Performed on Thin Silicon Membrane (PPPP process)
Passivated 52 µm thick transmissionE strip detector
Sub-segmented strip detectors
2D position sensitivity on one side (like pixel detectors)Same number and type of readout channels as strip detectors30 - 50 µm position resolution is possibleLarge pads on back side for timing/triggerThin dead layer on front side – low energy threshold Spectroscopy
Potential applications – any nuclear physics experiment, medicine, safety
Absolutely novel technique!
Thick Si calorimeters
Very good energy resolution High efficiency Low noise
Thick (7-10 mm) Li drifted Si detectors (SiLi)
Very expensive Very long and complicated production
process Almost no producers in the world
Thick (≥3 mm) Si PIN detectors
Very good energy resolution High efficiency Low noise Simple and fast production Any active area possible Low price Need an R&D on voltage termination
at the detector periphery Careful choice of the Si wafers
Potential applications – GANIL, LNL Legnaro, LNS Catania, GSI
Particle and ion ID Spectroscopy Position measurement Self-triggering, TOF measurement
Integrated E-E detector
Summary of JRA activityMembrane-like strip detector
Sub-segmented strip detector
Thick Si calorimeters
Merging potential with some other JRAs – dialog is going on
Substantial improvement
Full advanced telescope for charged particle detection
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
Partners: