Integrated software for imaging data analysis applied to edge plasma physic and operational safety

Abstract Fusion tokamaks are complex devices requiring many diagnostics for real time control of the plasma and off-line physical analysis. In current tokamaks, imaging diagnostics have become increasingly used for these two purposes. Such systems produce a lot of data encouraging physicists to use shared tools and codes for data access and analysis. If general purpose software programs for data display and analysis are widely spread, a need exists in developing similar applications for quantitative imaging data analysis applied to plasma physic. In this paper, we introduce a new integrated software program, named wolff , dedicated to this task. The main contribution of this software is to gather under the same framework different functionalities for (1) data access and display, (2) signal, image, and video processing, and (3) quantitative analysis based on physical models. After an overview of existing solutions for data processing in the field of plasma data, we present the wolff architecture and its currently implemented features. The capabilities of the software are then demonstrated through three applications in the field of physical analysis (heat and particle flux calculations) and tokamak operational safety.

[1]  Ralph Johnson,et al.  design patterns elements of reusable object oriented software , 2019 .

[2]  George Wolberg,et al.  Digital image warping , 1990 .

[3]  John F. Canny,et al.  A Computational Approach to Edge Detection , 1986, IEEE Transactions on Pattern Analysis and Machine Intelligence.

[4]  R. Mitteau,et al.  Evaluation of the growth of carbonaceous deposit in steady state Tore Supra using infrared thermography , 2006 .

[5]  Y. Demers,et al.  Enhanced heat flux in the scrape-off layer due to electrons accelerated in the near field of lower hybrid grills , 1998 .

[6]  D. Guilhem,et al.  Tore-Supra infrared thermography system, a real steady-state diagnostic , 2005 .

[7]  Characterization of the carbon erosion on the limiter of Tore Supra , 2009 .

[8]  Christopher G. Lasater,et al.  Design Patterns , 2008, Wiley Encyclopedia of Computer Science and Engineering.

[9]  Herb Sutter.  Exceptional C++: 47 Engineering Puzzles, Programming Problems, and Solutions , 1999 .

[10]  Y. Corre,et al.  Thermal quadrupoles approach for two-dimensional heat flux estimation using infrared and thermocouple measurements on the JET tokamak , 2009 .

[11]  R. Mitteau,et al.  Operational limits during high power long pulses with radiofrequency heating in Tore Supra , 2009 .

[12]  R. Mitteau,et al.  Study of heat flux deposition on the limiter of the Tore Supra tokamak , 2009 .

[13]  R A Robb,et al.  Analyze: a comprehensive, operator-interactive software package for multidimensional medical image display and analysis. , 1989, Computerized medical imaging and graphics : the official journal of the Computerized Medical Imaging Society.

[14]  V. Basiuk,et al.  Ripple losses during ICRF heating in Tore Supra , 2004 .

[15]  R. Mitteau,et al.  Analysis of radiative disruptions in RF-heated Tore Supra plasmas using infrared imaging , 2009 .

[16]  W. Suttrop,et al.  Remote participation at JET Task Force work: users’ experience , 2002 .

[17]  R. Mitteau,et al.  RF heating optimization on Tore Supra using feedback control of infrared measurements , 2007 .

[18]  Suk-Ho Hong,et al.  Development of automatic data extraction technique from visible CCD images for in-vessel dust study in Tore Supra , 2009 .

[19]  M. Chatelier.  Integration of high power, long pulse operation in Tore Supra in preparation for ITER , 2007 .

[20]  Miklós Emri,et al.  The "MEDIP-Platform Independent Software System for Medical Image Processing" Project , 2006, J. Univers. Comput. Sci..

[21]  B Diallo,et al.  VoxeLine: a software program for 3D real-time visualization of biomedical images. , 1998, Computerized medical imaging and graphics : the official journal of the Computerized Medical Imaging Society.

[22]  Daniel Bloyet,et al.  An object-oriented approach for quantitative interpretation of multimodal images , 1992, 1992 14th Annual International Conference of the IEEE Engineering in Medicine and Biology Society.

[23]  David Abrahams,et al.  Building hybrid systems with Boost.Python , 2003 .

[24]  A. Becoulet,et al.  Hot spot phenomena on Tore Supra ICRF antennas investigated by optical diagnostics , 2003 .