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R&D lines @ IFCA Jornadas Futuros Aceleradores, Barcelona May8th ‘09 Iván Vila Álvarez Instituto de Física de Cantabria Main Actors, Roles & R&D communities Physicists: Celso Martínez, Alberto Ruíz, Marcos Fernández, Amparo L. Virto & Iván Vila Students: Jordi Duarte + new student. Engineer: David Moya (mechanics), Richard Jaramillo (electronics) and J. Gonzalez (software). R&D playgrounds: EUDET, SiLC, CEC (CMS upgrade), Spanish groups. Jornadas Sobre Futuros Aceleradores , May 8thl '09, I. Vila 2 Outline: R&D lines R&D on sensors R&D on mechanics Integration of Fiber Optic Sensors on CF composites Mechanical design and FEA simulation. DAQ software Improved IR-semitransparent sensors. Thin micro-strips sensors. Strixels sensors DAQ integration with EUDET pixel telescope (EUDAQ) Facilities Outlook and next steps Jornadas Sobre Futuros Aceleradores , May 8thl '09, I. Vila 3 Jornadas Sobre Futuros Aceleradores , May 8thl '09, I. Vila 4 RD on Sensors: IRuS for alignment Statement of the issue: Real time position monitoring of the tracker during detector operation with a few microns accuracy. Reference laser lines going through tracker’s sensors. Name of the game, increase the IR transmittance of the microstrip sensors introducing minimal modifications to the sensor layout: same materials, avoid fine tuning. R&D targets: ILD FTD, SiD tracker, CMS tracker upgrade. Jornadas Sobre Futuros Aceleradores , May 8thl '09, I. Vila 5 RD on Sensors: IRuS for alignment (2) 1st Validation of optical simulation software with material samples. (done) 2nd Babysensor baseline design (p on n; AC coupling, 50 um pitch) minimal design modifications to boost sensor IR transmittance. (done) 3th Production of IR mini-sensors. (on progress) 4th Bench and beam testing of sensors 5th Know-how transfer to main vendors. Jornadas Sobre Futuros Aceleradores , May 8thl '09, I. Vila 6 Validation of the optical simulation (1) • Simulation predicts calibrated thickness of 6 calibrated bands of SiO2 [d=0-500] nm on a 1-sided polished Si wafer, from Ocean Optics • Si characterized from 1st band (not shown) Difference calibrated-fitted thickness= 2 nm Difference calibrated-fitted thickness= 1 nm !! CEC Meeting, 09 -8thl Marcos'09, Fernandez -IFCA Jornadas Sobre Futuros Aceleradores , Apr May I. Vila 97 Validation of Full Optical Simulation (diffraction pattern) CNM wafer + diffraction Al pattern, using GICSERV07 access. 40 diffraction orders 45 nm Al roughness CEC Meeting, 09 - 8thl Marcos'09, Fernandez -IFCA Jornadas Sobre Futuros Aceleradores , Apr May I. Vila 128 IR transparent mini-sensors Final-Design Currently being produced (GICSERV08) Jornadas Sobre Futuros Aceleradores , May 8thl '09, I. Vila 9 R&D on sensors: thin ustrips GICSERV09 access on ustrip thin sensors. Direct wafer bonding and deep anisotropic etching. Aim: frame layout design, FEA analysis, mechanical characterization of dummies, bonding tests, bench & test beam testing. R&D Targets: CMS upgrade Figure 2: Thinning of double-sided processed detectors. See text and ref. [6] for further details. Jornadas Sobre Futuros Aceleradores , May 8thl '09, I. Vila 11 R&D on Sensors: CMS upgrade HPK Run Aachen DESY Hamburg Karlsruhe Louvain Santander Vienna Vilnius Warsaw Pixel cells Jornadas Sobre Futuros Aceleradores , May 8thl '09, I. Vila 12 R&D on sensors: HPK sensors 6 6 each Jornadas Sobre Futuros Aceleradores , May 8thl '09, I. Vila 13 Jornadas Sobre Futuros Aceleradores , May 8thl '09, I. Vila 14 R&D on mechanics (1) System Design Forward Tracker Disk @ ILD Outer layers already on official ILD full simulation geometry. Jornadas Sobre Futuros Aceleradores , May 8thl '09, I. Vila 15 R&D mechanics: Alignment Requirements LICTOY tracking simulation software from HEPHY SiD LoI geometry Single muon events. Jornadas Sobre Futuros Aceleradores , May 8thl '09, I. Vila 16 R&D on mechanics: Alignment requirements DPt/Pt vs. alignment errors 1um, 7um, 10um (5um nominal) Jornadas Sobre Futuros Aceleradores , May 8thl '09, I. Vila 17 R&D on mechanics(2): SMART structures Well know monitoring technologies in aeronautics and civil works based on optical fiber sensors (OFS) Distributed strain & temperature sensors are conventionally used for structure health monitoring : SMART structures Other OFS for acceleration & radiation dose and rate. In aeronautics (embedded or bonded) on the of the CFRP composite ( for instance, plane radar redome) Jornadas Sobre Futuros Aceleradores , May 8thl '09, I. Vila 18 R&D on mechanics: Bragg grating Fiber Bragg Grating optical transducer very common to measure strain and temperature Jornadas Sobre Futuros Aceleradores , May 8thl '09, I. Vila 19 R&D on mechanics: Bragg grating Jornadas Sobre Futuros Aceleradores , May 8thl '09, I. Vila 21 OFS & FBG advantages Jornadas Sobre Futuros Aceleradores , May 8thl '09, I. Vila 22 Integrating OFS & carbon fiber composites For the Track structure would be interesting to use a embedded fiber optic sensor. more precise and reliable data It could be use 2 side solution Better understanding of the results Useful to quantify the thermal strain Jornadas Sobre Futuros Aceleradores , May 8thl '09, I. Vila 23 Plans R&D Targets: ILD, SiD, SCMS, SBelle Current activities: Market survey and contact with OFS vendors Contacting CF producers (Inta, Fermilab,…) Next activities: Testing of standalone OFS. Prepare CFRP test samples with embedded OPS Preparing some CF test structures with bonded or embedded fibers. Mechanical and thermal characterization of the test structures. Jornadas Sobre Futuros Aceleradores , May 8thl '09, I. Vila 24 Jornadas Sobre Futuros Aceleradores , May 8thl '09, I. Vila 25 DAQ software : EUDAQ Framework Integration of SiLC and CMS APV25 r/o software with EUDET telescope f/w. As members of the EUDET project we have been active users of the “EUDET pixel telescope” . We have carry-out the its integration with other daq and trigger DUT (thanks to EUDAQ software from the University of Geneva) Jornadas Sobre Futuros Aceleradores , May 8thl '09, I. Vila 26 EUDAQ FRAMEWORK Hierarchy, distribution and communication between applications: 1 Key: Data Collector Application Thread Buffer Signal /data N Listening Socket Command Cmd Receiver Storage M Monitor Data Merge Data Sender Cmd Receiver Data Server N Data Receiver GUI M Producer Data Sender Data Logging Hardware Polling Cmd Receiver Log Server Hardware Logger Cmd Server 1 Run Control Cmd Receiver • DAQ software: C++ • Communication: POSIX • GUIs: Qt • Online Monitor: ROOT • Runs on Mac OS X, Linux, and Windows (using cygwin). • Highly modular. Easy integration of devices into the DAQ. GUI 1 Log Receiver GUI Cmd Sender Storage Jornadas Sobre Futuros Aceleradores , May 8thl '09, I. Vila 27 Short-term Outlook In 2009: Increase our participation on SiD and ILD tracking groups. The IR alignment sensor fully tested with laser and source test bench using ALIVABA electronics. Maybe test beam. Thin sensors produced, mechanical dummies tested. Improved mechanical design. OFS proof of principle for tracking deformation monitoring. HPK order in production. SCMS and SiLC test beams. Jornadas Sobre Futuros Aceleradores , May 8thl '09, I. Vila 28 THANK YOU Jornadas Sobre Futuros Aceleradores , May 8thl '09, I. Vila 29 BACKUP Jornadas Sobre Futuros Aceleradores , May 8thl '09, I. Vila 30 Naïve FEA model Simple Geometry with frame + thinned area. Support: Four corners fixed. All Silicon structure Measured dummy structure shows 20 um bow 31 Jorn adas Sobr e Futu ros Acel erad ores , May 8thl '09, I. Vila Naïve FEA: gravitational bend Gravity parallel to Z axis Deformation in Z direction Max deformation 12 um 32 Jorn adas Sobr e Futu ros Acel erad ores , May 8thl '09, I. Vila Naïve FEA: Longitudinal (X) strain Top surface 33 Jorn adas Sobr e Futu ros Acel erad ores , May 8thl '09, I. Vila Naïve FEA: Transversal (Y) strain Top surface 34 Jorn adas Sobr e Futu ros Acel erad ores , May 8thl '09, I. Vila Naïve FEA: Strain vs. Deformation Z DOF / X STRAIN DIFERENT g´s 1.40E-04 1.20E-04 8.00E-05 6.00E-05 4.00E-05 2.00E-05 0.00E+00 0.00E+00 Y STRAIN / X STRAIN DIFERENT g`s 5.00E-06 1.00E-05 1.50E-05 2.00E-05 2.50E-05 3.00E-05 1.20E-05 X STRAIN 1.00E-05 8.00E-06 Y STRAIN Z DOF 1.00E-04 6.00E-06 4.00E-06 2.00E-06 0.00E+00 0.00E+00 5.00E-06 1.00E-05 1.50E-05 2.00E-05 2.50E-05 X STRAIN 35 Jorn adas Sobr e Futu ros Acel erad ores , May 8thl 3.00E-05 '09, I. Vila Naïve FEA: Conclusions Gravitation bend depends linearly with top surface strain Output values for nominal conditions: Maximum deformation of 12 um Maximum longitudinal strain about 2.5 me at the middle of the DEPFET “frame”. Maximum transversal strain about 1 me at the middle of the DEPFET “frame”. 36 Jorn adas Sobr e Futu ros Acel erad ores , May 8thl '09, I. Vila A possible commercial solution Deformation monitoring with 750nm resolution 37 Jorn adas Sobr e Futu ros Acel erad ores , May 8thl '09, I. Vila An event cleaner/lighter solution ? Several options: Embdeding of fiber sensors on suporting structures (BTeV) Or event much better, embedding the sensing element on the depfet frame, Integrating a Bragg grating on it, still studying its feasibility. 38 Jorn adas Sobr e Futu ros Acel erad ores , May 8thl '09, I. Vila Summary and next steps FBG commercial sensor will provide 750nm monitoring resolution with small amount of extra material. More realistic FEA simulations are still needed: thermal loads, better mechanical supports,… Eventually, a realistic test with a mock-up will be needed. 39 Jorn adas Sobr e Futu ros Acel erad ores , May 8thl '09, I. Vila