Speaker
Andrzej Wojenski
(Institute of Electronic Systems)
Description
This work refers to the currently being developed extended soft X-Ray plasma diagnostics system with the novel, radiation-hard generation of electronics and implemented algorithms. The system is based on the Gas Electron Multiplier detector. For the multichannel, modular systems working with very intense plasmas (e.g. laser generated plasma, plasma fluxes), the phenomenon of the coinciding signals from the GEM detector can occur. It is difficult to compute energy values from events of this type with basic set of algorithms. Therefore it is necessary to perform extended verification of the incoming signals and algorithms output. In order to efficiently develop new, advanced data processing path, large amount of diagnostic data (e.g. raw signal registration, signal saturation counters) must be gathered for further investigation. This is especially difficult when working with large number of analog input channels and high event rate from the GEM detector. One module of the system is capable of processing up to 64 analog channels in real-time, while the whole unit can work with maximum number of 2048 channel. The system is designed to process plasma bursts at approximately 1 Mevents/s rate. The required bandwidth for data processing and transmission is very high. The system uses PCI-Express Generation 2 links with DDR3 memory for data storage and buffering. Artix7 FPGAs mounted on the electronic modules performs signal acquisition and data preprocessing. The extended diagnostics modules implemented in the FPGAs allows to compute photons energy together with position and corresponding analog signal. Data can be sent in real time to the PC unit for post processing including cluster construction and spectrograms computation in offline mode. It is novel approach to the plasma diagnostics and signal processing. The functionality is especially useful for development of new coinciding signal separation algorithms, which will be used in SXR plasma diagnostics systems.
Co-authors
Andrzej Wojenski
(Institute of Electronic Systems, Warsaw University of Technology, Nowowiejska 15/19, 00-665 Warszawa, Poland)
Didier Mazon
(Institut de Recherche sur la Fusion par confinement Magnétique (IRFM), Commissariat à l'énergie atomique et aux énergies alternatives (CEA), F-13108 Saint-Paul-lez-Durance, France)
Grzegorz Kasprowicz
(Institute of Electronic Systems, Warsaw University of Technology, Nowowiejska 15/19, 00-665 Warszawa, Poland)
Karol Malinowski
(Institute of Plasma Physics and Laser Microfusion, Hery 23, 01-497 Warsaw, Poland)
Krzysztof T. Pozniak
(Institute of Electronic Systems, Warsaw University of Technology, Nowowiejska 15/19, 00-665 Warszawa, Poland)
Maryna Chernyshova
(Institute of Plasma Physics and Laser Microfusion, Hery 23, 01-497 Warsaw, Poland)
Piotr Kolasinski
(Institute of Electronic Systems, Warsaw University of Technology, Nowowiejska 15/19, 00-665 Warszawa, Poland)
Rafal Krawczyk
(Institute of Electronic Systems, Warsaw University of Technology, Nowowiejska 15/19, 00-665 Warszawa, Poland)
Tomasz Czarski
(Institute of Plasma Physics and Laser Microfusion, Hery 23, 01-497 Warsaw, Poland)
Wojciech Zabolotny
(Institute of Electronic Systems, Warsaw University of Technology, Nowowiejska 15/19, 00-665 Warszawa, Poland)
