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10 th Meeting of the ITPA Topical Group on Diagnostics, Moscow, Russia

10 th Meeting of the ITPA Topical Group on Diagnostics, Moscow, Russia. First Experiments with Galvanomagnetic Instrumentation on the Tore Supra and the JET Fusion Facilities I.Bolshakova 1 , V.Coccorese 2 , I.Duran 3 , S.Gerasimov 4 , R.Holyaka 1 ,

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10 th Meeting of the ITPA Topical Group on Diagnostics, Moscow, Russia

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  1. 10th Meeting of the ITPA Topical Group on Diagnostics, Moscow, Russia First Experiments with Galvanomagnetic Instrumentation on the Tore Supra and the JET Fusion Facilities I.Bolshakova1, V.Coccorese2, I.Duran3, S.Gerasimov4, R.Holyaka1, P.Moreau5, A. Murari6, F. Saint-Laurent5, J. Stockel3 1. Magnetic Sensor Laboratory (LPNU); 1 Kotliarevsky Str, Lviv, 79013, UKRAINE 2. .Association EURATOM-ENEA(CREATE), Via Claudio 21, I-80125 Napoli, ITALY 3. IPP Prague, Association EURATOM/IPP.CR, Za Slovankou 3, 182 00 Praha 8, CZECH REPUBLIC 4. Euratom/UKAEA Association, Fusion Culham Science Centre, Abingdon, OX14 3EA, UK 5. Association EURATOM-CEA, Cadarache, 13108 Saint Paul Lez Durance, FRANCE 6.Consorzio RFX, Associazione ENEA-EURATOM per la Fusione, Corso Stati Uniti 4, 37125 Padova, ITALY Magnetic Sensor Laboratory, Lviv Polytechnic National University, Ukraine. http://www.MSL.Lviv.ua

  2. 10th Meeting of the ITPA Topical Group on Diagnostics, Moscow, Russia Contents • Statement of the problem • Galvanomagnetic Instrumentation: requirements & solutions • Integrated Magnetic Transducer & Intelligent Functions • Experiments with GI on TORE SUPRA, Cadarache (France) • Experiments with GI on JET, Culham (UK) • GI electronics & parameters • New High Frequency Magnetic Transducer • Next steps • Conclusion and acknowledgments Abbreviated notations: GI – Galvanomagnetic Instrumentation HT – Hall Transducer IMT – Integrated Magnetic Transducer Magnetic Sensor Laboratory, Lviv Polytechnic National University, Ukraine. http://www.MSL.Lviv.ua

  3. 10th Meeting of the ITPA Topical Group on Diagnostics, Moscow, Russia Statement of the problem Two main requirements for magnetic field measurements in fusion reactors of next generation: first – the necessity to perform accurate magnetic field measurements at steady state (quasi-stationary mode) with the duration up to 3600 s; second– operation reliability at a considerable level of penetrating radiation. These requirements make it difficult to use only the traditional inductive methods based on pick-up coils and integrators. To solve this problem the galvanomagnetic transducers, namely transducers based on the Hall effect, can supplement the existing magnetic field system based on the traditional inductive coils, since they do not have any particular restriction with regard to quasi-stationary and steady-state magnetic field measurements. Magnetic Sensor Laboratory, Lviv Polytechnic National University, Ukraine. http://www.MSL.Lviv.ua

  4. 10th Meeting of the ITPA Topical Group on Diagnostics, Moscow, Russia • Galvanomagnetic Instrumentation: • Requirements & Solutions • Special Hall Transducers for extreme operation conditions • In-situ calibration • Wide-band magnetic field measurement • Multi-channel measurement • High precision of measurement under considerable noise conditions • Signal transfer over long distances Magnetic Sensor Laboratory, Lviv Polytechnic National University, Ukraine. http://www.MSL.Lviv.ua

  5. 10th Meeting of the ITPA Topical Group on Diagnostics, Moscow, Russia Integrated Magnetic Transducer & Intelligent Functions 1 – Hall Sensor 2 – Coil 3 – Substrate 4 – Pins • Magnetic field measurement in high rate mode (real time mode). • Magnetic field measurement in high precision mode (correction mode). • Selftesting by formation & measurement of test magnetic field. • Transducing function correction. • Temperature measurement. • Combination of galvanomagnetic and electromagnetic measurements in united system. Magnetic Sensor Laboratory, Lviv Polytechnic National University, Ukraine. http://www.MSL.Lviv.ua

  6. 10th Meeting of the ITPA Topical Group on Diagnostics, Moscow, Russia Transducing function correction Transducing function: aj - coefficients of the polynomial series VHe = GVHo , G - drift factor Magnetic Sensor Laboratory, Lviv Polytechnic National University, Ukraine. http://www.MSL.Lviv.ua

  7. 10th Meeting of the ITPA Topical Group on Diagnostics, Moscow, Russia 3D Integrated Magnetic Transducer Magnetic Sensor Laboratory, Lviv Polytechnic National University, Ukraine. http://www.MSL.Lviv.ua

  8. 10th Meeting of the ITPA Topical Group on Diagnostics, Moscow, Russia MSL Galvanomagnetic Instrumentation Magnetic Sensor Laboratory, Lviv Polytechnic National University, Ukraine. http://www.MSL.Lviv.ua

  9. 10th Meeting of the ITPA Topical Group on Diagnostics, Moscow, Russia MSL GI Electronics MX – Multiplexer CN – Control module CS1, 2 – Current source 1, 2 SD – Synchrodetector HA – High frequency amplifier HC – High frequency ADC LA – Low frequency amplifier LC – Low frequency ADC ST –Stabilizer SI – Serial interface OP – Optical isolator PS – Power supply unit IMT – Integrated Magnetic Transducer TL1, 2 – Transmission line1, 2 Magnetic Sensor Laboratory, Lviv Polytechnic National University, Ukraine. http://www.MSL.Lviv.ua

  10. 10th Meeting of the ITPA Topical Group on Diagnostics, Moscow, Russia Experiments with GI on TORE SUPRA,Cadarache (France) 3D IMT location – on the surface of poloidal field coil just outside the TS vessel together with the reference 3D coil system Magnetic Sensor Laboratory, Lviv Polytechnic National University, Ukraine. http://www.MSL.Lviv.ua

  11. 10th Meeting of the ITPA Topical Group on Diagnostics, Moscow, Russia The results of magnetic field measurement on TORE SUPRA (low frequency mode) Magnetic Sensor Laboratory, Lviv Polytechnic National University, Ukraine. http://www.MSL.Lviv.ua

  12. 10th Meeting of the ITPA Topical Group on Diagnostics, Moscow, Russia The results of magnetic field measurement on TORE SUPRA (selfdiagnostic) Magnetic Sensor Laboratory, Lviv Polytechnic National University, Ukraine. http://www.MSL.Lviv.ua

  13. see next slide 10th Meeting of the ITPA Topical Group on Diagnostics, Moscow, Russia The results of magnetic field measurement on TORE SUPRA (HF mode, pulse #34085) Magnetic Sensor Laboratory, Lviv Polytechnic National University, Ukraine. http://www.MSL.Lviv.ua

  14. 10th Meeting of the ITPA Topical Group on Diagnostics, Moscow, Russia The results of magnetic field measurement on TORE SUPRA (HF mode, pulse #34085) scale is enlarged Magnetic Sensor Laboratory, Lviv Polytechnic National University, Ukraine. http://www.MSL.Lviv.ua

  15. 10th Meeting of the ITPA Topical Group on Diagnostics, Moscow, Russia The results of magnetic field measurement on TORE SUPRA (HF mode, pulse #34073) Magnetic Sensor Laboratory, Lviv Polytechnic National University, Ukraine. http://www.MSL.Lviv.ua

  16. 10th Meeting of the ITPA Topical Group on Diagnostics, Moscow, Russia The results of magnetic field measurement on TORE SUPRA (HF mode, pulse #34073) scale is enlarged Magnetic Sensor Laboratory, Lviv Polytechnic National University, Ukraine. http://www.MSL.Lviv.ua

  17. 10th Meeting of the ITPA Topical Group on Diagnostics, Moscow, Russia The same pulse (#34073) getting by coil techniques Magnetic Sensor Laboratory, Lviv Polytechnic National University, Ukraine. http://www.MSL.Lviv.ua

  18. 10th Meeting of the ITPA Topical Group on Diagnostics, Moscow, Russia … and temperature measurements (only for resolution representing) Magnetic Sensor Laboratory, Lviv Polytechnic National University, Ukraine. http://www.MSL.Lviv.ua

  19. 10th Meeting of the ITPA Topical Group on Diagnostics, Moscow, Russia Experiments with GI on JET, Culham (UK) 3D IMT location Magnetic Sensor Laboratory, Lviv Polytechnic National University, Ukraine. http://www.MSL.Lviv.ua

  20. 10th Meeting of the ITPA Topical Group on Diagnostics, Moscow, Russia MSL GI on JET Magnetic Sensor Laboratory, Lviv Polytechnic National University, Ukraine. http://www.MSL.Lviv.ua

  21. 10th Meeting of the ITPA Topical Group on Diagnostics, Moscow, Russia The results of magnetic field measurement on JET Magnetic Sensor Laboratory, Lviv Polytechnic National University, Ukraine. http://www.MSL.Lviv.ua

  22. 10th Meeting of the ITPA Topical Group on Diagnostics, Moscow, Russia CASTOR collaboration In-vessel measurements using MSL 3D Hall probe Magnetic Sensor Laboratory, Lviv Polytechnic National University, Ukraine. http://www.MSL.Lviv.ua

  23. 10th Meeting of the ITPA Topical Group on Diagnostics, Moscow, Russia GI Electronics and Software in details … if it is possible from the time point of view Magnetic Sensor Laboratory, Lviv Polytechnic National University, Ukraine. http://www.MSL.Lviv.ua

  24. 10th Meeting of the ITPA Topical Group on Diagnostics, Moscow, Russia 8-channels signal conversion for 3D IMT HF Signal compression Kv=10 @ Vinp < 150 mV Kv=1 @ Vinp > 150 mV Magnetic Sensor Laboratory, Lviv Polytechnic National University, Ukraine. http://www.MSL.Lviv.ua

  25. 10th Meeting of the ITPA Topical Group on Diagnostics, Moscow, Russia GI: Signal Processing Components Intelligent Sensors (IEEE 1451.2-Compatible) AD7663, 16-Bit, 250kSPS ADC AD855X, Zero drift OA ADuC 824 MicroConverter™, 24-Bit ADC with FLASH MCU Magnetic Sensor Laboratory, Lviv Polytechnic National University, Ukraine. http://www.MSL.Lviv.ua

  26. 10th Meeting of the ITPA Topical Group on Diagnostics, Moscow, Russia Comparison of Galvanomagnetic and Coil methods The parameters: • field change rate – up to 1 T/sec; • duration of flat pulse – 0.20.5 sec; • samplingfrequency– 1 kHz (t = 1 msec); • measurement duration – 5 sec. Magnetic Sensor Laboratory, Lviv Polytechnic National University, Ukraine. http://www.MSL.Lviv.ua

  27. 10th Meeting of the ITPA Topical Group on Diagnostics, Moscow, Russia Comparison of Galvanomagnetic and Coil methods Magnetic Sensor Laboratory, Lviv Polytechnic National University, Ukraine. http://www.MSL.Lviv.ua

  28. 10th Meeting of the ITPA Topical Group on Diagnostics, Moscow, Russia GI Software Two channels HF measurement Selfdiagnostic Magnetic Sensor Laboratory, Lviv Polytechnic National University, Ukraine. http://www.MSL.Lviv.ua

  29. 10th Meeting of the ITPA Topical Group on Diagnostics, Moscow, Russia GI main parameters: precision High precisionmode of magnetic field measurement Selfdiagnostic Magnetic Sensor Laboratory, Lviv Polytechnic National University, Ukraine. http://www.MSL.Lviv.ua

  30. 10th Meeting of the ITPA Topical Group on Diagnostics, Moscow, Russia Transmission driver for GI on TORE SUPRA Magnetic Sensor Laboratory, Lviv Polytechnic National University, Ukraine. http://www.MSL.Lviv.ua

  31. MSL Galvanomagnetic Instrumentation 10th Meeting of the ITPA Topical Group on Diagnostics, Moscow, Russia Transmission driver for GI on JET Magnetic Sensor Laboratory, Lviv Polytechnic National University, Ukraine. http://www.MSL.Lviv.ua

  32. 10th Meeting of the ITPA Topical Group on Diagnostics, Moscow, Russia New High Frequency Magnetic Transducer I - traditional HT II - highly sensitive HT III - the loop for the electromagnetic compensation Bolshakova І., Holyaka R. Magnetic field measuring transducer. Patent of Ukraine #72825 of 15.04.2005 Magnetic Sensor Laboratory, Lviv Polytechnic National University, Ukraine. http://www.MSL.Lviv.ua

  33. 10th Meeting of the ITPA Topical Group on Diagnostics, Moscow, Russia The bench for high frequency magnetic field formation Magnetic Sensor Laboratory, Lviv Polytechnic National University, Ukraine. http://www.MSL.Lviv.ua

  34. 10th Meeting of the ITPA Topical Group on Diagnostics, Moscow, Russia The dumping oscillation current of test coil & signal of galvanomagnetic sensor Current of test coil Current of test coil VHT (I= 20 mA) VHT (I= 0 mA) Current of test coil Current of test coil VHT (I= -20 mA) VHT (I= 0 mA) Magnetic Sensor Laboratory, Lviv Polytechnic National University, Ukraine. http://www.MSL.Lviv.ua

  35. 10th Meeting of the ITPA Topical Group on Diagnostics, Moscow, Russia NEXT STEPS • Collaboration with European tokamaks: • JET 2006-2007 • TORE SUPRA 2006-2008 • TEXTOR 2006-2007 • CASTOR 2006 Magnetic Sensor Laboratory, Lviv Polytechnic National University, Ukraine. http://www.MSL.Lviv.ua

  36. 10th Meeting of the ITPA Topical Group on Diagnostics, Moscow, Russia Qualification and validation of Hall Probe System for potential applications in ITER Residual magnetic field measurements (ex-vessel): special techniques for self-diagnostics and off-set drift reduction JET High frequency MHD analysis (in-vessel): special techniques for electromagnetic noise elimination and high-temperature robust Hall sensor Tore Supra Perturbation field measurement(fast-reciprocating probe):integrated transducer based on Hall sensor and pick-up coil TEXTOR Short magnetic pulse measurements (in-vessel) CASTOR Magnetic Sensor Laboratory, Lviv Polytechnic National University, Ukraine. http://www.MSL.Lviv.ua

  37. 10th Meeting of the ITPA Topical Group on Diagnostics, Moscow, Russia Conclusion • The problem of quasi-stationary magnetic field measurements in fusion devices can be efficiently solved by using Hall-type galvanomagnetic transducers. • Contrary to the traditional measuring coils, the HT can measure the steady-state and the alternating magnetic fields with sufficiently high accuracy. • Proposed principles of instrumentation construction for quasi-stationary magnetic field measurements, based on the developed radiation hard HTs and original signal processing electronics, meet the requirements of extreme operation conditions on fusion reactors of new generation. • The galvanomagnetic transducers and the based-on instrumentation being presented in the work, were used during the experiments with quasi steady-state magnetic fields on the tokamaks TORE SUPRA (France) and JET (UK). Magnetic Sensor Laboratory, Lviv Polytechnic National University, Ukraine. http://www.MSL.Lviv.ua

  38. 10th Meeting of the ITPA Topical Group on Diagnostics, Moscow, Russia • Acknowledgments • The work was supported by: • STCU (Ukraine) • EFDA-JET (UK) • Association EURATOM-CEA (France) • Association EURATOM-ENEA/CREATE (Italy). …. thank you Magnetic Sensor Laboratory, Lviv Polytechnic National University, Ukraine. http://www.MSL.Lviv.ua

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