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Proceedings Paper

On line separation of overlapped signals from multi-time photons for the GEM-based detection system
Author(s): T. Czarski; K. T. Pozniak; M. Chernyshova; K. Malinowski; G. Kasprowicz; P. Kolasinski; R. Krawczyk; A. Wojenski; W. Zabolotny
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Paper Abstract

The Triple Gas Electron Multiplier (T-GEM) is presented as soft X-ray (SXR) energy and position sensitive detector for high-resolution X-ray diagnostics of magnetic confinement fusion plasmas. Multi-channel measurement system and serial data acquisition for X-ray energy and position recognition is described. Fundamental characteristics are presented for two dimensional detector structure. Typical signals of ADC – Analog to Digital Converter are considered for charge value and position estimation. Coinciding signals for high flux radiation cause the problem for cluster charge identification. The amplifier with shaper determines time characteristics and limits the pulses frequency. Separation of coincided signals was introduced and verified for simulation experiments. On line separation of overlapped signals was implemented applying the FPGA technology with relatively simple firmware procedure. Representative results for reconstruction of coinciding signals are demonstrated.

Paper Details

Date Published: 11 September 2015
PDF: 9 pages
Proc. SPIE 9662, Photonics Applications in Astronomy, Communications, Industry, and High-Energy Physics Experiments 2015, 96622W (11 September 2015); doi: 10.1117/12.2205804
Show Author Affiliations
T. Czarski, Institute of Plasma Physics and Laser Microfusion (Poland)
K. T. Pozniak, Warsaw Univ. of Technology (Poland)
M. Chernyshova, Institute of Plasma Physics and Laser Microfusion (Poland)
K. Malinowski, Institute of Plasma Physics and Laser Microfusion (Poland)
G. Kasprowicz, Warsaw Univ. of Technology (Poland)
P. Kolasinski, Warsaw Univ. of Technology (Poland)
R. Krawczyk, Warsaw Univ. of Technology (Poland)
A. Wojenski, Warsaw Univ. of Technology (Poland)
W. Zabolotny, Warsaw Univ. of Technology (Poland)


Published in SPIE Proceedings Vol. 9662:
Photonics Applications in Astronomy, Communications, Industry, and High-Energy Physics Experiments 2015
Ryszard S. Romaniuk, Editor(s)

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