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Published in 2017 at "Fusion Engineering and Design"
DOI: 10.1016/j.fusengdes.2016.10.016
Abstract: Abstract Huazhong University of Science and Technology (HUST) is developing a small radio frequency negative ion source experimental setup to promote research on neutral beam injection ion sources. The extraction system for the negative ion…
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Keywords:
extraction;
thermo mechanical;
ion source;
ion ... See more keywords
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Published in 2017 at "International Journal of Mass Spectrometry"
DOI: 10.1016/j.ijms.2017.04.011
Abstract: Abstract In this study we present an investigation of the negative ion-molecule chemistry of pentachloroethane (PCE) in air based ion mobility spectrometry and ion mobility spectrometry–mass spectrometry systems. The observed product ions are Cl −…
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Keywords:
chemistry;
ion mobility;
ion;
ion molecule ... See more keywords
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Published in 2017 at "Talanta"
DOI: 10.1016/j.talanta.2017.01.076
Abstract: Electrospray ionization mass spectrometry (ESI-MS) analysis in the negative ion mode is adversely affected by ionization suppression caused by electrical discharge and the presence of salts. Paper spray mass spectrometry (PS-MS) also suffers from the…
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Keywords:
paper substrate;
mass spectrometry;
ion mode;
paper ... See more keywords
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Published in 2020 at "Journal of Plasma Physics"
DOI: 10.1017/s0022377820001348
Abstract: The dynamical behaviour of weakly nonlinear, low-frequency sound waves are investigated in a plasma composed of only positive and negative ions incorporating the effects of a weak external uniform magnetic field. In the plasma model…
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Keywords:
chaos positive;
negative ion;
ion magnetized;
ion negative ... See more keywords
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Published in 2018 at "Physics of Plasmas"
DOI: 10.1063/1.5024519
Abstract: The criteria for occurrence and the dynamical features of electrostatic solitary waves in a homogeneous, unmagnetized ultradense plasma penetrated by a negative ion beam are investigated, relying on a quantum hydrodynamic model. The ionic components…
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Keywords:
solitary waves;
ion beam;
electrostatic solitary;
negative ion ... See more keywords
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Published in 2021 at "Physics of Plasmas"
DOI: 10.1063/5.0064894
Abstract: The effects of dense semi-classical plasma (DSCP) on the ground state of the negative ion of hydrogen (H−) and on the dynamics of electron–hydrogen scattering have been investigated. DSCP is described by an effective potential…
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Keywords:
hydrogen;
energy;
semi classical;
ion ... See more keywords
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Published in 2017 at "Plasma Physics and Controlled Fusion"
DOI: 10.1088/1361-6587/aa7120
Abstract: Caesium (Cs) is applied in high power negative hydrogen ion sources to reduce a converter surface's work function and thus enabling an efficient negative ion surface formation. Inherent drawbacks with the usage of this reactive…
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Keywords:
ion source;
ion formation;
ion;
mola lab6 ... See more keywords
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Published in 2018 at "Plasma Physics and Controlled Fusion"
DOI: 10.1088/1361-6587/aac7fb
Abstract: Negative ion sources used for neutral beam injection in fusion experiments are based on the surface production of H− or D− on caesiated low work function surfaces. The amount of co-extracted electrons is much higher…
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Keywords:
conditioning;
deuterium;
source;
caesium ... See more keywords
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Published in 2017 at "Plasma Sources Science and Technology"
DOI: 10.1088/1361-6595/aa68d0
Abstract: The discussed paper strongly criticises the capability of 3D PIC codes for describing the extraction physics of negative hydrogen ions generated via the surface conversion process using caesium. A strong disagreement of the obtained results…
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Keywords:
extraction;
comment;
understanding negative;
comment issues ... See more keywords
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Published in 2017 at "New Journal of Physics"
DOI: 10.1088/1367-2630/aa64bd
Abstract: Neutral beam injection is one of themost importantmethods of plasma heating in thermonuclear fusion experiments, allowing the attainment of fusion conditions aswell as driving the plasma current. Neutral beams are generally produced by electrostatically accelerating…
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Keywords:
transport negative;
physics;
neutralisation transport;
negative ion ... See more keywords
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Published in 2021 at "Nuclear Fusion"
DOI: 10.1088/1741-4326/ac21fa
Abstract: The progress toward realizing a high-performance cesium (Cs)-free negative-ion source based on volume production in a magnetized sheet plasma device (TPDsheet-U) is reported. In the experiments, H− ions were successfully extracted from sheet plasma using…
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Keywords:
ion source;
ion;
free negative;
cesium free ... See more keywords