Results 11 to 20 of about 1,118,371 (206)
Negative Hydrogen Ion Sources for Fusion: From Plasma Generation to Beam Properties
Frontiers 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
Cesiated surface H− ion source: optimization studies
New Journal of Physics, 2017 The H ^− ion beam intensity required for high-energy and high-intensity proton accelerators is continuously increasing. The required 95%-beam transverse normalized root mean square emittance ( ε _95%rnms _x _/ _y ) of the beam is around 0.25 π mm mrad ...
Akira Ueno
doaj +1 more source
Optimization of negative ion sources for a heavy-ion-beam probe [PDF]
, 2006 The development of plasma-sputter-type negative ion sources is underway for the heavy-ion-beam probe system as plasma diagnostic beams of the large helical device (LHD) for potential and fluctuation field measurements.
A. Mendenilla +9 more
core +2 more sources
Self-extraction negative ion source [PDF]
Review of Scientific Instruments, 1982 A large multicusp negative ion source has been constructed to generate H− or D− ions for high-energy neutral beam systems. With the presence of cesium, the source has produced a steady-state H− ion beam current greater than 1 A with an impurity level less than 1%. The vertical and horizontal profiles of the self-extracted beam have been measured with a
K. N. Leung, K. W. Ehlers
openaire +2 more sources
Diagnostics tools and methods for negative ion source plasmas, a review
New Journal of Physics, 2017 Plasma parameter measurements for negative hydrogen (H ^− ) ion sources have been playing an important role in clarifying fundamental physics related to negative ion production and destruction processes. Measured data of beam properties, such as H ^− ion
Katsuyoshi Tsumori, Motoi Wada
doaj +1 more source
A negative ion source for alkali ions [PDF]
Nuclear Instruments and Methods, 1980 An ion source is described which delivers negative alkali ions. With this source, which consists of a duoplasmatron and a charge exchange canal with alkali vapour, negative Li, Na and K ions are produced. The oven in which alkali metals are evaporated can reach temperatures up to 575°C.
Vermeer, A., Zwol, N.A. van
openaire +2 more sources
Negative Ion Source Development for Fusion Application (invited) [PDF]
, 2010 Giant negative ion sources, producing high-current of several tens amps with high energy of several hundreds keV to 1 MeV, are required for a neutral beam injector(NBI) in a fusion device.
Fantz U. +3 more
core +2 more sources
First Prototype of a Cesium Oven Design for Negative-Ion-Source-Based Neutral Beam Injector at ASIPP
Energies, 2022 The RF-driven negative ion source has a steady state characteristic and will be a promising ion source for neutral beam injection (NBI) in the future.
Wei Liu +5 more
doaj +1 more source
Polarized Negative Ion Source with Multiply Sphericaly Focusing Surface Plasma Ionizer
, 2018 It is proposed one universal H-/D- ion source design combining the most advanced developments in the field of polarized ion sources to provide high-current high-brightness ion beams with >90% polarization and improved lifetime, reliability, and power ...
Dudnikov, A., Dudnikov, V.
core +1 more source
, 2015 Negative ion production with conventional multicusp plasma chambers utilizing 2.45 GHz microwave heating is demonstrated. The experimental results were obtained with the multicusp plasma chambers and extraction systems of the RFdriven RADIS ion source ...
Kalvas, T. +4 more
core +1 more source