Results 11 to 20 of about 9,952,830 (307)

Ion Source—Thermal and Thermomechanical Simulation

open access: yesAerospace, 2021
The main purpose of this work is to conduct ground development testing of the ion source intended for use the space debris contactless transportation system.
Victoria V. Svotina   +2 more
doaj   +1 more source

Negative Hydrogen Ion Sources for Fusion: From Plasma Generation to Beam Properties

open access: yesFrontiers in Physics, 2021
The neutral beam injection systems for the international fusion experiment ITER used for heating, current drive, and diagnostic purposes are based on RF-driven negative hydrogen ion sources with a source area of roughly 0.9 m × 1.9 m. The sources operate
U. Fantz   +4 more
doaj   +1 more source

The efficiency of a focusing system based on thin diaphragms in the ion source with a corona discharge

open access: yesSt. Petersburg Polytechnical University Journal: Physics and Mathematics, 2023
In this work, a charged particle beam transport in an ion source with a corona discharge, the source being equipped with a focusing system based on thin diaphragms in the standing gas and at atmospheric pressure, has been studied experimentally.
Pomozov Timofey   +2 more
doaj   +1 more source

Groundwater chemical characteristics and forming reasons of Yuanyanghu Mining Area

open access: yesMeikuang Anquan, 2023
In order to find out the chemical characteristics and causes of groundwater in Yuanyanghu Mining Area, and to provide basis for the prevention and control of water disaster in the mining area, the aquifer hydro-chemistry of Quaternary, Cretaceous, Zhiluo
ZONG Weiqin, ZHAO Baofeng
doaj   +1 more source

Highly Efficient Small Anode Ion Source

open access: yesPlasma, 2021
We describe some modifications to a Bernas-type ion source that improve the ion beam production efficiency and source operating lifetime. The ionization efficiency of a Bernas type ion source has been improved by using a small anode that is a thin rod ...
Vadim Dudnikov, Andrei Dudnikov
doaj   +1 more source

A new off-line ion source facility at IGISOL [PDF]

open access: yesNuclear Instruments and Methods in Physics Reseach B, 2019
An off-line ion source station has been commissioned at the IGISOL (Ion Guide Isotope Separator On-Line) facility. It offers the infrastructure needed to produce stable ion beams from three off-line ion sources in parallel with the radioactive ion beams ...
M. Vil'en   +15 more
semanticscholar   +1 more source

Negative ion source operation with deuterium

open access: yesPlasma Sources Science & Technology, 2020
When the working gas of a negative ion source is changed from hydrogen to its isotope, deuterium, an ‘isotope effect’ is observed; namely, several plasma characteristics such as the electron energy distribution, the atomic fraction and the spectra of ...
M. Bacal, Motoi Wada
semanticscholar   +1 more source

Prediction of Axial Variation of Plasma Potential in Helicon Plasma Source Using Linear Regression Techniques [PDF]

open access: yesInternational 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
doaj   +1 more source

Origin and hydrochemical evolution of confined groundwater in Shanghai, China

open access: yesFrontiers in Earth Science, 2023
Confined groundwater is an indispensable resource for the urban security of Shanghai, China, where multi-layer aquifer structures and human activities create a complex groundwater environment.
Guanghui Zhan   +9 more
doaj   +1 more source

Status of CHIP-TRAP: The Central Michigan University High-Precision Penning Trap

open access: yesAtoms, 2023
Precise and accurate atomic mass data provide crucial information for applications in a wide range of fields in physics and beyond, including astrophysics, nuclear structure, particle and neutrino physics, fundamental symmetries, chemistry, and metrology.
Matthew Redshaw   +7 more
doaj   +1 more source

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