Zero-Suppression Trigger Mode for GEM detector measurement system
Abstract
Electron Multiplier (GEM) detector readout system is presented.
The system is already installed at WEST tokamak. The article
briefly describes the architecture of the GEM detector and the
measurement system. Currently the system can work in two
trigger modes: Global Trigger and Local Trigger. All trigger processing
blocks are parts of the Charge Signal Sequencer module
which is responsible for transferring data to the PC. Therefore,
the article presents structure of the Sequencer with details about
basic blocks, theirs functionality and output data configuration.
The Sequencer with the trigger algorithms is implemented in
an FPGA chip from Xilinx. Global Trigger, which is a default
mode for the system, is not efficient and has limitations due to
storing much data without any information. Local trigger which
is under tests, removes data redundancy and is constructed to
send only valid data, but the rest of the software, especially on the
PC side, is still under development. Therefore authors propose
the trigger mode which combines functionality of two existing
modes. The proposed trigger, called Zero Suppression Trigger, is
compatible with the existing interfaces of the PC software, but
is also capable to verify and filter incoming signals and transfer
only recognized events. The results of the implementation and
simulation are presented.
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D. Mazon et al., ”Design of soft-X-ray tomographic system in WEST
using GEM detectors”, Fusion Engineering and Design vol. 96-97, pp.
-860 (2015), https://doi.org/10.1016/j.fusengdes.2015.03.052
M. Chernyshova et al., ”Design and development of soft x-ray diagnostics
based on GEM detectors at IPPLM”, Photonics Applications
in Astronomy, Communications, Industry, and High-Energy Physics
Experiments 2019 111764F (2019), https://doi.org/10.1117/12.2537832
A. J. Wojenski 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, pp. 49-53 (2015), https://doi.org/10.1016/j.nimb.2015.06.022
D. Mazon et al., ”GEM detectors for WEST and potential application
for heavy impurity transport studies”, Journal of Instrumentation vol.
(2016), http://dx.doi.org/10.1088/1748-0221/11/08/C08006
W. Zabołotny et al., ”FPGA and Embedded Systems Based Fast Data
Acquisition and Processing for GEM Detectors”, Journal of Fusion
Energy vol. 38, pp. 480-489 (2019), https://doi.org/10.1007/s10894-018-0181-2
P. Linczuk et al., ”Measurement capabilities upgrade of GEM soft X-ray
measurement system for hot plasma diagnostics”, International Journal
of Electronics and Telecommunication, under submission
G. Kasprowicz et al., ”Fast modular data acquisition system for GEM-
D detector”, Photonics Applications in Astronomy, Communications,
Industry, and High-Energy Physics Experiments 2014 92902F (2014), https://doi.org/10.1117/12.2075596
A. Wojenski et al., ”Multichannel measurement system for extended
SXR plasma diagnostics based on novel radiation-hard electronics”,
Fusion Engineering and Design vol. 123, pp. 727-731 (2017), https://doi.org/10.1016/j.fusengdes.2017.04.134
A. Wojenski et al., ”FPGA-based GEM detector signal acquisition for
SXR spectroscopy system”, Journal of Instrumentation vol. 11 (2016), https://doi.org/10.1088/1748-0221/11/11/C11035
P. Kolasinski et al., ”GEM detector charge signals sequencer implementation
for WEST experiment”, Photonics Applications in Astronomy,
Communications, Industry, and High-Energy Physics Experiments 2019
D (2019), https://doi.org/10.1117/12.2537002
P. Kolasinski et al., ”Serial data acquisition for GEM-2D detector”,
Photonics Applications in Astronomy, Communications, Industry, and
High-Energy Physics Experiments 2014 92902H (2014), https://doi.org/10.1117/12.2075911
T. Czarski et al., ”Serial data acquisition for the X-ray plasma diagnostics
with selected GEM detector ”, Journal of Instrumentation vol. 10 (2015), https://doi.org/10.1088/1748-0221/10/10/P10013
P. Kolasinski et al., ”Modeling and implementation of the GEM detector
charge signals sequencer for the hot plasma tokamak fast diagnostics
system”, Przeglad Telekomunikacyjny + Wiadomosci Telekomunikacyjne
vol. 4, pp. 86–91 (2018), http://dx.doi.org/10.15199/59.2018.4.2
P. Kolasinski et al., ”FPGA based fast, low latency serialization system
for measurement data”, Elektronika : konstrukcje, technologie, zastosowania
vol. 58, pp. 4–45 (2017), http://dx.doi.org/10.15199/13.2017.8.9
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