Search results for: Karol Malinowski

Items from 1 to 8 out of 8 results

article

Measurement Capabilities Upgrade of GEM Soft X-ray Measurement System for Hot Plasma Diagnostics

Pawel Linczuk, Andrzej Wojenski, Piotr Kolasinski, Rafal Krawczyk, more

International Journal of Electronics and Telecommunications > 2021 > Vol. 67, No. 1 > 115--120

The paper presents improvements of the developed system for hot plasma radiation measurement in the soft Xray range based on a Gas Electron Multiplier (GEM) detector. Scope of work consists of a new solution for handling hardware time-synchronization with tokamak systems needed for better synchronization with other diagnostics and measurement quality. The paper describes the support of new modes of...

article

Parallel computing in soft X‐rays plasma diagnostic systems for thermal fusion reactors—feasibility studies for GPUs

Rafal Krawczyk, Tomasz Czarski, Pawel Linczuk, Andrzej Wojenski, more

Concurrency and Computation: Practice and Experience > 32 > 10 > n/a - n/a

This paper presents feasibility studies in utilizing graphics processing units (GPUs) as high‐performance computing hardware with front‐end electronics in high‐scale magnetic confinement thermal fusion experiments. The objective of the research is to provide scalable, high‐throughput, and low‐latency measurements for the runtime tokamak metallic impurities X‐ray diagnostic for the Tungsten Environment...

article

Development of GEM detector for tokamak SXR tomography system: Preliminary laboratory tests

Maryna Chernyshova, Tomasz Czarski, Karol Malinowski, Ewa Kowalska-Strzęciwilk, more

Fusion Engineering and Design > 2017 > 123 > C > 877-881

The GEM based detecting system is currently being developed for poloidal tomography to be used at WEST project tokamak. It consists of two GEM detectors of planar and of cylindrical geometry for the vertical and horizontal ports, respectively. Several laboratory tests were conducted to assess the performance of the prototype detectors and verify the proposed design. For that, the measurements of the...

article

OES studies of plasmoids distribution during the coating deposition with the use of the Impulse Plasma Deposition method controlled by the gas injection

Katarzyna Nowakowska-Langier, Rafal Chodun, Krzysztof Zdunek, Sebastian Okrasa, more

Vacuum > 2016 > 128 > C > 259-264

The article presents the results concerning the OES characterization of plasmoids generated by the Impulse Plasma Deposition method modified by the use of gas injection (Gas Controlled IPD). Both of the electrodes of the coaxial accelerator: the tube (cathode) and the rod (anode–the source of the vapors) are permanently connected with the capacitors charged to the high voltage of few kV value. During...

article

Charged projectile spectrometry using solid-state nuclear track detector of the PM-355 type

Aneta Malinowska, Marian Jaskóła, Andrzej Korman, Adam Szydłowski, more

Nukleonika > 2015 > 60 > 3 > 591-596

To use effectively any radiation detector in high-temperature plasma experiments, it must have a lot of benefits and fulfill a number of requirements. The most important are: a high energy resolution, linearity over a wide range of recorded particle energy, high detection efficiency for these particles, a long lifetime and resistance to harsh conditions existing in plasma experiments and so on. Solid-state...

article

Study of tungsten surface interaction with plasma streams at DPF-1000U

Marina S. Ladygina, Elzbieta Skladnik-Sadowska, Dobromil R. Zaloga, Karol Malinowski, more

Nukleonika > 2015 > 60 > 2 > 293-296

In this note experimental studies of tungsten (W) samples irradiated by intense plasma-ion streams are reported. Measurements were performed using the modified plasma focus device DPF-1000U equipped with an axial gas-puffing system. The main diagnostic tool was a Mechelle®900 optical spectrometer. The electron density of a freely propagating plasma stream (i.e., the plasma stream observed without...

article

Comparison of optical spectra recorded during DPF-1000U plasma experiments with gas-puffing

Dobromil R. Zaloga, Elzbieta Skladnik-Sadowska, Monika Kubkowska, Marina S. Ladygina, more

Nukleonika > 2015 > 60 > 2 > 309-314

The results are presented of the optical spectra measurements for free plasma streams generated with the use of the modified DPF-1000U machine. This facility was recently equipped with a gas injection system (the so-called gas-puff) placed on the symmetry axis behind the central opening in the inner electrode. The DPF-1000U experimental chamber was filled up with pure deuterium at the initial pressure...

chapter

Characteristic of discharge at parameters of lightning channel

Pavel Barvir, Pavel Kubes, Jozef Kravarik, Marek Scholz, more

2004 International Conference on High-Power Particle Beams (BEAMS 2004) > 802 - 805

2004 International Conference on High-Power Particle Beams (BEAMS 2004)

In this paper the parameters of the plasma of the high power electric discharge at the atmospheric pressure are presented. The discharge is characterized by total electric charge ≈100 C, by the average current 300 A and by the total duration of the discharge a few hundreds ms. Before the breakdown the electrodes with distance of 40 cm were connected with the wire of 300 µm diameter. For diagnostics...

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