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Stabilisation WP Status CTC December 2012

Stabilisation WP Status CTC December 2012. The research leading to these results has received funding from the European Commission under the FP7 Research Infrastructures project EuCARD. Outline. Manpower & collaboration status Review status 2012 MBQ stabilisation and Nano-positioning status

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Stabilisation WP Status CTC December 2012

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  1. Stabilisation WP StatusCTC December 2012 The research leading to these results has received funding from the European Commission under the FP7 Research Infrastructures project EuCARD

  2. Outline • Manpower & collaboration status • Review status 2012 • MBQ stabilisation and Nano-positioning status • Final focus status • Other • Plans for 2013, objectives K.Artoos, CTC December 2012

  3. Manpower + collaborationstatus K.Artoos, CTC December 2012 To be streamlined at CLIC workshop

  4. Manpower + collaboration status (2) • LAPP/Symme Budget: • EuCARD will end soon and not in EuCARD2, ANR on ATF2 just ended, CERN White-Paper finished so no more outside resources available; IN2P3 Budget will probably be reduced again after 30% cut last year; Marie-Curie PACMAN, only a few months of a PhD (if it passes) • LAPP/Symme Space: • will move soon in Maison de la Mecatronique => about the same space available as now, but nearer to SYMME • CERN Networking with NIKHEF (PhD Stef, TNO, MI Partners, TU Delft,… • Synergy sensor development with LIGO, VIRGO. Contact Christophe Colette Action CLIC : new collaboration agreements + K contracts

  5. Review status 2012 • MBQ Stabilisation Type 1 Collocated pair Seismometer FB max. gain +FF (FBFFV1mod): 7 % luminosity loss (no stabilisation 68 % loss) Courtesy J. Snuverink, J. Pfingstner et al. X-y proto

  6. Inertial Reference mass Stef Janssens Courtesy J. Snuverink et al. “Comparison of new absolute displacement sensors”, C. Collette et al. , ISMA 2012 K.Artoos, CTC December 2012 C. Collette

  7. Stabilization with Interferometer based geophone Interferometer based geophone built and tested: -Very high sensitivity, high resolution -Wider bandwidth -Proof of concept Measured open loop on x-y guide Stef Janssens Issue: Due to higher bandwidth, actuator slew rate gives unstabilities in the loop -> New batch of actuators have a higher slew rate

  8. X-y prototype Nano positioningResolution, precision, accuracy Capacitive sensor 3 beaminterferometer Actuators equipped with strain gauges Optical ruler

  9. Comparisonsensors M. Esposito, IWAA 2012 Fermilab

  10. X-y positioning: Studyprecision, accuracy and resolution The precisionrequired by beamdynamics for nano positioning (0.25 nm) wasdemonstratedwithopticalrulers in a temperature stable environment and for simultaneous x and y motion. Absoluteaccuracycanbecalibratedwithin 10-8 m. Tests in a temperatureunstableenvironmentwillbemade(ISR re installation)

  11. Combination of fast positioning and stabilization Combining positioning and stabilization: -Making error to requested position R as small as possible -Additional displacement measurement for low frequency to DC -integrator at low frequency to eliminate drift -Simulations function -> To be implemented on x-y prototype Stef Janssens

  12. Controller Electronics Hybrid Second generation P. Fernandez Carmona • 2 d.o.f. • Position input terminal • Switchable (displacement/velocity) • Manual or Digital gain/filter control • Improved radiation hardness (choice components • Tested for SEU and induced noise at H4HIRRAD • FPGA control digital part started H4IRAD test stand No damage nor SEU after 18 Gy Test not complete Report to be finalized Piezo amplifier not radhard

  13. Preparation test modules and CLEX:Two type 1 MBQ and one Type4 • Flexural joints machined. Actuators with amplifiers and sensors to be delivered January 2013. • Electronic boards in construction, 80% of components received • Second generation electronics built (more radhard) tested at H4IRRAD • Design Type 1 and type 4 mechanical support ongoing (70% ready) • Demonstrators T1 and T4 plannedfor April 2013. • Issue: Reduction manpower stabilisation MME in 2013 EUCARD deliverable

  14. Analytical & FE results Longitudinal stiffness Longitudinal mode With xy guide (pins fixed to steel plates) 65 Hz With xy guide (pins totally fixed on 1 end) 280 Hz Without xy guide 3.4 Hz Without xy guide 0.03 N/μm With xy guide (pins totally fixed on 1 end) 278N/μm With xy guide (pins fixed to steel plates) 48 N/μm M. Esposito, IWAA 2012 Fermilab “Development of advanced mechanical systems for stabilization and nano-positioning of clic main beam quadrupoles” , IWAA2012

  15. Final Focus stabilisation Attenuation up to 50dB between 1,5-100Hz 1,5Hz-100Hz 5 nm RMS ground at 4 Hz: 5 nm RMS on foot at 4Hz: 0,6nm RMS ratio: 8,3 0,6 nm For all tests done, limited by sensor noise Andrea JEREMIE CTC 12/12/12

  16. Final Focus Stabilisation C. Collette et al. Presentation MDI this Friday • [C. Collette et al. “Control strategies for the final focus of future linear • particle collider” Nuclear Instruments and Methods in Physics Research, Section A Vol. 684 (August 2012), pp. 7-17] • Test set-up with carbon cables and IFF K.Artoos, CTC December 2012

  17. Other subjects: CMS synchronous Final focus ground motion measurements M. Guinchard Equipment available and validated Organiseaccess, availability people ATF2 Ground motion measurements Preparation displacement measurements Cabling sensors done Noise tests long cables done DAQ programming done Electronics powering done All sent to LAPP 0.2 µm 12 mm K.Artoos, CTC December 2012

  18. Objectives 2013 CERN “team”: Build and test 3 MBQ modules Type 1 ISR + CLEX (precursor PACMAN) Type 4 ISR + Test module Type 1 Test module Outsource: * Construction of adapted sensors (transfer function, AE compatible, noise level) High stiffness actuators (done) * Collocated sensor-actuators Characterization existing systems ? Study pre-isolator Final Focus High load high range high resolution actuators * Construction electronics Implementation of custom digital slow control Construction mechanics: flexural joints, monolithic , machining, assembly,… Displacement sensors and their implementation Development Radiation hard components K.Artoos, CTC December 2012

  19. Budget 2013 Purchase 12 piezo actuators with amplifiers 68 kCHF (Delivery 15th January) Usinage+ achat Type 1 TM, Type 1 ISR, Type 4 ~80000 CHF Travelling KEK, installation GM measurements, Transport equipment (stay 2 weeks 2-3 people): 30 kCHF Instrumentation optical rulers 20 kCHF Components mounting electronics 20 kCHF Subcontracting : Inertial mass : 150 kCHF ? Study pre-isolator: 100 kCHF Budget estimation to be completed with information from collaborations K.Artoos, CTC December 2012

  20. SPARES K.Artoos, CTC December 2012

  21. Five R&D themes : K.Artoos, CTC December 2012

  22. Extra slide: Measured slew rate of actuator

  23. Bill of Materials • Amplifiers • LMP2022MA: Zero Drift, Low Noise, EMI Hardened Amplifier • AD8230YRZ:  Zero-Drift, Precision Instrumentation Amplifier • AD8691AUJZ: Low Cost, Low Noise, CMOS Rail-to-Rail Output Operational Amplifier • Power regulator ICs: TPS76550, REG1117-2.5, TPS72325, UCC284-5 • FLASH Digital potentiometers: AD5231, AD5204 • Diodes: BAV199 • Capacitors: Tantalum • Resistors: Thin film 1% • Potentiometers: Cermet • Digital slow control • National Instruments PXI with DAQmx card • FPGA: Spartan 6 evaluation board (under development) P. Fernandez Carmona, RadWG meeting, Geneva, 17 January 2012

  24. Controller electronics: Hybrid Local electronics ADCs digitize signals For remote monitoring Communication to remote control center with optical fiber 2 analogue chains + positioning offset SPI P. Fernandez Carmona (until end of August) K.Artoos, CTC December 2012

  25. X-y Positioning 1&2 Parasitic roll M. Esposito, IWAA 2012 Fermilab

  26. Inertial reference mass proto (v3): With interferometer/withcapacitive gauge K.Artoos, CTC December 2012

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