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Prediction of Axial Variation of Plasma Potential in Helicon Plasma Source Using Linear Regression Techniques [PDF]
International Journal of Mathematical, Engineering and Management Sciences, 2020 Analytical expressions are used frequently for the determination and analysis of plasma parameters. Instead of relying on analytical expressions, the proposed method uses regression techniques supplemented with experimental data for the selected ...
Vipin Shukla +3 more
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RF and Microwave Ion Sources Study at Institute of Modern Physics
Plasma, 2021 Intense ion beam production is of high importance for various versatile applications from accelerator injectors to secondary ion mass spectrometry (SIMS). For these purposes, different types of ion beams are needed and, accordingly, the optimum plasma to
Qian Y. Jin +5 more
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Chemical Reviews, 2017 Until a decade ago, the only anion observed to play a prominent role in astrophysics was H-. The bound-free transitions in H- dominate the visible opacity in stars with photospheric temperatures less than 7000 K, including the Sun. The H- anion is also believed to have been critical to the formation of molecular hydrogen in the very early evolution of ...
Millar, TJ, Walsh, C, Field, TA
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Chinese Journal of Physiology, 2020 Complementary and alternative medicines (CAMs) are widely applied and accepted for therapeutic purposes because of their numerous benefits. Negative ion treatment belongs to one of the critical categories defined by the National Center for CAM, with such
Chin-Shan Ho +4 more
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He jishu, 2021 BackgroundCesium injection can significantly reduce the work function of plasma grid surface of the radio frequency (RF) negative ion source, which is an effective way to promote the surface generation and improve the yield of H- ions.PurposeThis study ...
WANG Haoming +10 more
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Experimental evaluation of a negative-ion source for a heavy-ion fusion negative-ion driver [PDF]
Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, 2005 Abstract Negative halogen ions have recently been proposed as a possible alternative to positive ions for heavy-ion fusion drivers because electron accumulation would not be a problem in the accelerator, and if desired, the beams could be photodetached to neutrals (Nucl. Instr. and Meth. A 464 (2001) 315; Fusion Sci. Technol.
Grisham, L. R. +4 more
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Negative Ion Beam Emittance Calculations
Приборы и методы измерений, 2020 Computer simulations are commonly used to support design and optimisation of powerful negative ion sources for the needs of future thermonuclear reactors like e. g. ITER.
M. Turek, P. Węgierek
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Spectrum of the negative Be ion
Physical Review A, 1981 The existence of ${\mathrm{Be}}^{\ensuremath{-}}$ is established from electron correlation calculations which include one-, two-, three-, and four-orbital excitations. The discrete spectrum of ${\mathrm{Be}}^{\ensuremath{-}}$ consists of three states: $1{s}^{2}2s2{p}^{2} ^{4}P$, $1{s}^{2}2{p}^{3} ^{4}S^{o}$, and $1s2s2{p}^{3} ^{6}S^{o}$. The $^{4}S^{o}\
Beck, D. R. +3 more
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AIP Advances, 2022 Well focused negative ion beams are required for neutral beam injection systems for heating and current drive in magnetically confined fusion plasma experiments.
Yasuaki Haba +6 more
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Enhancing ion extraction with an inverse sheath in negative hydrogen ion sources for NBI heating
Nuclear Fusion, 2023 Negative hydrogen ion (H ^− ) sources employed in neutral beam injection (NBI) systems are subject to extraction efficiency issues due to the considerable volumetric losses of negative hydrogen ions.
Guang-Yu Sun +9 more
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