Multiboard trigger link synchronization and diagnostics

• Autorzy: Wojenski A. , Pozniak K. , Mazon D. , Chernyshova M.
• Języki publikacji: EN

Abstrakty

EN

Soft X-ray (SXR) plasma measurements are important type of diagnostics especially in tokamak facilities. Main output products are energy and topology spectra distributed in time. In case of Gas Electron Multiplier (GEM) detectors, used as radiation sensors, large number of analog readout channels must be provided. For this purpose Field-Programmable Gate Arrays (FPGAs) are used. Data quality monitoring (DQM) is important topic in case of asynchronous events registered by the measurement unit. Due to numerous FPGAs used it is necessary to provide advanced trigger synchronization between them. In the paper is proposed an algorithmic approach for the trigger link training and diagnostics. It is a key component in order to provide consistent measurement data for DQM analysis. The contents of the article covers the plasma experiments and related DQM topics. In following chapters explanation of the synchronization problem is described. The proposed algorithm will be used for trigger link synchronization and diagnostics aspects. The simulations are also discussed. Currently, the proposed ideas are at the stage of implementation and tests on real hardware. Simulation were successfully performed. Summary of the work carried out is presented at the end of the paper.

Słowa kluczowe

EN

data quality monitoring; FPGA; GEM detector; soft X-ray plasma diagnostics; trigger distribution; measurement system

• Wydawca: Wydawnictwo PAK
• Czasopismo: Measurement Automation Monitoring
• Rocznik: 2017
• Tom: Vol. 63, No. 6
• Strony: 223--225
• Opis fizyczny: Bibliogr. 10 poz., rys., wzory

Twórcy

autor

Wojenski A.

• Warsaw University of Technology, Institute of Electronic Systems, 15/19 Nowowiejska St, 00-665 Warsaw, Poland

autor

Pozniak K.

• Warsaw University of Technology, Institute of Electronic Systems, 15/19 Nowowiejska St, 00-665 Warsaw, Poland

autor

Mazon D.

• CEA, IRFM F-13108 Saint-Paul-lez-Durance, France

autor

Chernyshova M.

• Institute of Plasma Physics and Laser Microfusion, 23 Hery St., 01-497 Warsaw, Poland

Bibliografia

• [1] Sertoli M. et al.: Modification of impurity transport in the presence of saturated (m, n) = (1,1) MHD activity at ASDEX Upgrade. Plasma Physics and Controlled Fusion,vol. 57(7), 2015.
• [2] Mazon D., et al.: GEM detectors for WEST and potential application for heavy impurity transport studies. J. of Instrum., vol. 11 (8), 2016.
• [3] Vezinet D. et al.: Fast nickel and iron density estimation using soft X-ray measurements in Tore Supra: preliminary study. Fusion Science and Technology, vol. 63(1), 2013.
• [4] Sauli F.: GEM: A new concept for electron amplification in gas detectors. Nuclear Instruments and Methods in Phys. Res A, vol. 386, p. 531-534 , 1997.
• [5] Chernyshova M. et al.: Conceptual design and development of GEM based detecting system for tomographic tungsten focused transport monitoring. Journal of Instrumentation, vol. 10, 2015.
• [6] Wojenski A., et al.: Multichannel reconfigurable measurement system for hot plasma diagnostics based on GEM-2D detector. Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms, vol. 364, 2015.
• [7] Wojenski A., et al.: Concept and Current Status of Data Acquisition Technique for GEM Detector Based SXR Diagnostics. Fusion Science and Technology, vol. 69 (3), 2016.
• [8] Wojenski A., et al.: FPGA-based GEM detector signal acquisition for SXR spectroscopy system. J. of Instrument., vol. 11, November 2016.
• [9] Xilinx 7 Series FPGAs SelectIO Resources User Guide, UG471, 2016.
• [10] Panda A. K. et al: FPGA Implementation of 8, 16 and 32 Bit LFSR with Maximum Length Feedback Polynomial Using VHDL. 2012 International Conference on Communication Systems and Network Technologies, Rajkot, 2012, pp. 769-773.

Uwagi

EN

The Author of the paper received funding under the doctoral scholarship financing program from National Science Centre, number 2016/20/T/ST7/00203.

PL

Opracowanie ze środków MNiSW w ramach umowy 812/P-DUN/2016 na działalność upowszechniającą naukę (zadania 2017).