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The Design of an Automated Plasma Diagnostic System – From Measurement to Signal Processing

). [3] L. Kenéz, Zsakó Z., E. Filep., Automation of plasma diagnostics measurements performed in a non-isotherm plasma reactor ,Studia Universitatis, Physica, LIII/1 2008. [4] C.Britton Rorabaugh - Digital Filter Designer’s Handbook. TAB Books Division of McQraw-Hill, Inc.Blue Ridge Summit, PA 17294-0850. [5] Vinay K. Ingle, John G. Proakis: Digital Signal Processing Using MATLAB (Bookware Companion), Thomson-Engineering; 2 edition (August 10, 2006), ISBN: 049507311.

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Diagnostics of the plasma parameters based on the K X-ray line positions for various 4d and 4f metals

References 1. Pereira, N. R., Weber, B. V., Apruzese, J. P., Mosher, D., Schumer, J. W., Seely, J. F., Szabo, C. I., Boyer, C. N., Stephanakis, S. J., & Hudson, L. T. (2010). K-line spectra from tungsten heated by an intense pulsed electron beam. Rev. Sci. Instrum., 81, 10E302. DOI: 10.1063/1.3464268. 2. Słabkowska, K., Szymańska, E., Polasik, M., Pereira, N. R., Rzadkiewicz, J., Seely, J. F., Weber, B. V., & Schumer, J. W. (2014). Ionization energy shift of characteristic K x-ray lines from high-Z materials for plasma

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Comparison of silicon drift detectors made by Amptek and PNDetectors in application to the PHA system for W7-X

Abstract

The paper presents comparison of two silicon drift detectors (SDD), one made by Amptek, USA, and the second one by PNDetector, Germany, which are considered for a soft X-ray diagnostic system for W7-X. The sensitive area of the first one is 7 mm2 × 450 μm and the second one is 10 mm2 × 450 μm. The first detector is cooled by a double-stage Peltier element, while the second detector is cooled by single-stage Peltier element. Each one is equipped with a field-effect transistor (FET). In the detector from Amptek, the FET is mounted separately, while in the detector from PNDetector, the FET is integrated on the chip. The nominal energy resolution given by the producers of the first and the second one is 136 eV@5.9 keV (at -50°C) and 132 eV@5.9 keV (at -20°C), respectively. Owing to many advantages, the investigated detectors are good candidates for soft X-ray measurements in magnetic confinement devices. They are suitable for soft X-ray diagnostics, like the pulse height analysis (PHA) system for the stellarator Wendelstein 7-X, which has been developed and manufactured at the Institute of Plasma Physics and Laser Microfusion (IPPLM), Warsaw, in collaboration with the Max Planck Institute for Plasma Physics (IPP), Greifswald. The diagnostic is important for the measurements of plasma electron temperature, impurities content, and possible suprathermal tails in the spectra. In order to choose the best type of detector, analysis of technical parameters and laboratory tests were done. Detailed studies show that the most suitable detector for the PHA diagnostics is the PNDetector.

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Plasma characterization of the gas-puff target source dedicated for soft X-ray microscopy using SiC detectors

Abstract

An Nd:YAG pulsed laser was employed to irradiate a nitrogen gas-puff target. The interaction gives rise to the emission of soft X-ray (SXR) radiation in the ‘water window’ spectral range (λ= 2.3÷4.4 nm). This source was already successfully employed to perform the SXR microscopy. In this work, a Silicon Carbide (SiC) detector was used to characterize the nitrogen plasma emission in terms of gas-puff target parameters. The measurements show applicability of SiC detectors for SXR plasma characterization.

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Diagnostics of laser-produced plasmas

Abstract

We present the general challenges of plasma diagnostics for laser-produced plasmas and give a few more detailed examples: spherically bent crystals for X-ray imaging, velocity interferometers (VISAR) for shock studies, and proton radiography.

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Nanostructured targets for TNSA laser ion acceleration

Abstract

Nanostructured targets, based on hydrogenated polymers with embedded nanostructures, were prepared as thin micrometric foils for high-intensity laser irradiation in TNSA regime to produce high-ion acceleration. Experiments were performed at the PALS facility, in Prague, by using 1315 nm wavelength, 300 ps pulse duration and an intensity of 1016 W/cm2 and at the IPPLM, in Warsaw, by using 800 nm wavelength, 40 fs pulse duration, and an intensity of 1019 W/cm2. Forward plasma diagnostic mainly uses SiC detectors and ion collectors in time of flight (TOF) configuration. At these intensities, ions can be accelerated at energies above 1 MeV per nucleon. In presence of Au nanoparticles, and/or under particular irradiation conditions, effects of resonant absorption can induce ion acceleration enhancement up to values of the order of 4 MeV per nucleon.

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Calculation of edge ion temperature and poloidal rotation velocity from carbon III triplet measurements on the COMPASS tokamak

of plasma spectroscopy. Cambridge, UK: Cambridge University Press. 5. Gomes, R. B., Varandas, C. A. F., Cabral, J. A. C., Sokolova, E., & Cortes, S. R. (2003). High dispersion spectrometer for time resolved Doppler measurements of impurity lines emitted during ISTTOK tokamak discharges. Rev. Sci. Instrum., 74(3), 2071-2074. DOI: 10.1063/1.1537039. 6. Sokolova, E., Cortes, S. D. R., & Nelson, M. (1997). High-resolution spectrometer for TOKAMAK plasma diagnostic. SPIE, 3130, 160-167. DOI: 10.1117/12.284058. 7. Kramida

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Characterization of some modern scintillators recommended for use on large fusion facilities in γ-ray spectroscopy and tomographic measurements of γ-emission profiles

-particles in 4He and D-T plasmas. Rev. Sci. Instrum., 74, 1753. http://dx.doi.org/10.1063/1.1534922. 11. Swiderski, L., Gojska, A., Grodzicka, M., Korolczuk, S., Mianowski, S., Moszynski, M., Rzadkiewicz, J., Sibczynski, P., Syntfeld-Kazuch, A., Szawlowski, M., Szczesniak, T., Szewinski, J., Szydlowski, A., &Zychor, I. (2015). Scintillators for high temperature plasma diagnostics. In Proceedings of the 1st EPS Conference on Plasma Diagnostics. Available from http://pos.sissa.it/archive/conferences/240/162/ECPD2015_162.pdf. 12. Sibczyński, P

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

calculations for the hydrogen lines H α , H β , H γ , and H δ . Phys. Rev ., 176 (1), 317–325. DOI: 10.1103/PhysRev.173.317. 9. Griem, H. R. (1974). Spectral line broadening by plasmas . New York: Academic Press. 10. Scholz, M., Karpinski, L., Paduch, M., Pisarczyk, T., Zielinska, E., Chodukowski, T., Sadowski, M. J., Składnik-Sadowska, E., Czaus, K., Kwiatkowski, R., Malinowski, K., Krauz, S., & Mitrovanov, K. (2010). MJ Plasma-Focus diagnostic systems. In Proceedings of the International Conference Plasma Diagnostics, 12–16 April 2010. Pont-a-Mousson, France

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Multi-energy ion implantation from high-intensity laser

.1002/sca.20289. 10. Cutroneo, M., Musumeci, P., Zimbone, M., Torrisi, L., La Via, F., Margarone, D., Velyhan, A., Ullschmied, J., & Calcagno, L. (2013). High performance SiC detectors for MeV ion beams generated by intense pulsed laser plasmas. J. Mater. Res., 28, 87-93. DOI: 10.1557/jmr.2012.211. 11. Cutroneo, M., Mackova, A., Malinsky, P., Matousek, J., Torrisi, L., & Ullschmied, J. (2015). High-intensity laser for Ta and Ag implantation into different substrates for plasma diagnostics. Nucl. Instrum. Methods Phys. Res. Sect. B

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