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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
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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: CelsoMartínez, 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
Outline: R&D lines • R&D on sensors • Improved IR-semitransparent sensors. • Thin micro-strips sensors. • Strixels sensors • R&D on mechanics • Integration of Fiber Optic Sensors on CF composites • Mechanical design and FEA simulation. • DAQ software • DAQ integration with EUDET pixel telescope (EUDAQ) • Facilities • Outlook and next steps Jornadas Sobre Futuros Aceleradores , May 8thl '09, I. Vila
R&D on Sensors Jornadas Sobre Futuros Aceleradores , May 8thl '09, I. Vila
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
RD on Sensors: IRuS for alignment (2) • 1st Validation of optical simulation software with material samples. (done) • 2ndBabysensor baseline design (p on n; AC coupling, 50 um pitch) minimal design modifications to boost sensor IR transmittance. (done) • 3thProduction 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
Difference calibrated-fitted thickness= 1 nm !! Difference calibrated-fitted thickness= 2 nm 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) CEC Meeting, Apr 09 - Marcos Fernandez -IFCA 9 Jornadas Sobre Futuros Aceleradores , May 8thl '09, I. Vila
40 diffraction orders 45 nm Al roughness Validation of Full Optical Simulation (diffraction pattern) CNM wafer + diffraction Al pattern, using GICSERV07 access. CEC Meeting, Apr 09 - Marcos Fernandez -IFCA 12 Jornadas Sobre Futuros Aceleradores , May 8thl '09, I. Vila
IR transparent mini-sensors Final-Design • Currently being produced (GICSERV08) Jornadas Sobre Futuros Aceleradores , May 8thl '09, I. Vila
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 Jornadas Sobre Futuros Aceleradores , May 8thl '09, I. Vila
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
R&D on sensors: HPK sensors 6 6 each Jornadas Sobre Futuros Aceleradores , May 8thl '09, I. Vila
R&D on Mechanics Jornadas Sobre Futuros Aceleradores , May 8thl '09, I. Vila
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
R&D mechanics: Alignment Requirements • LICTOY tracking simulation software from HEPHY • SiDLoI geometry • Single muon events. Jornadas Sobre Futuros Aceleradores , May 8thl '09, I. Vila
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
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
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
R&D on mechanics: Bragg grating Jornadas Sobre Futuros Aceleradores , May 8thl '09, I. Vila
OFS & FBG advantages Jornadas Sobre Futuros Aceleradores , May 8thl '09, I. Vila
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
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
R&D on Daq S/W Jornadas Sobre Futuros Aceleradores , May 8thl '09, I. Vila
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
EUDAQ FRAMEWORK Hierarchy, distribution and communication between applications: Key: Application Buffer Thread Signal /data Listening Socket Data Command Logging • 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. Jornadas Sobre Futuros Aceleradores , May 8thl '09, I. Vila
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
THANK YOU Jornadas Sobre Futuros Aceleradores , May 8thl '09, I. Vila
BACKUP Jornadas Sobre Futuros Aceleradores , May 8thl '09, I. Vila
Naïve FEA model Simple Geometry with frame + thinned area. Support: Four corners fixed. All Silicon structure Measured dummy structure shows 20 um bow Jornadas Sobre Futuros Aceleradores , May 8thl '09, I. Vila
Naïve FEA: gravitational bend Gravity parallel to Z axis Deformation in Z direction Max deformation 12 um Jornadas Sobre Futuros Aceleradores , May 8thl '09, I. Vila
Naïve FEA: Longitudinal (X) strain Top surface Jornadas Sobre Futuros Aceleradores , May 8thl '09, I. Vila
Naïve FEA: Transversal (Y) strain Top surface Jornadas Sobre Futuros Aceleradores , May 8thl '09, I. Vila
Naïve FEA: Strain vs. Deformation Jornadas Sobre Futuros Aceleradores , May 8thl '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”. Jornadas Sobre Futuros Aceleradores , May 8thl '09, I. Vila
A possible commercial solution Deformation monitoring with 750nm resolution Jornadas Sobre Futuros Aceleradores , 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. Jornadas Sobre Futuros Aceleradores , 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. Jornadas Sobre Futuros Aceleradores , May 8thl '09, I. Vila