Results 11 to 20 of about 1,617,958 (348)
First experiments with the negative ion source NIO1.
Review of Scientific Instruments, 2016 Neutral Beam Injectors (NBIs), which need to be strongly optimized in the perspective of DEMO reactor, request a thorough understanding of the negative ion source used and of the multi-beamlet optics. A relatively compact radio frequency (rf) ion source,
M. Cavenago +30 more
semanticscholar +6 more sources
Journal of Applied Physics, 2021 In this Tutorial, surface and double charge exchange negative ion sources for producing negative ion beams of different ion species will be described. The need for negative ions as the beam particles of tandem Van de Graaf accelerators and that for charge exchange injection of hydrogen negative ions into high-energy proton accelerators requires the ...
Bacal, M., Sasao, M., Wada, M.
openaire +3 more sources
Multicusp negative ion source [PDF]
Review of Scientific Instruments, 1980 The characteristics of a steady state, surface conversion, multiline-cusp negative ion source have been investigated for the production of high-energy neutral beams. With the presence of cesium, this source has been operated at a neutral pressure of 1×10−3 Torr to generate a H− ion current greater than 400 mA.
K. W. Ehlers, K. N. Leung
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High-intensity negative ion sources [PDF]
Nuclear Instruments and Methods, 1963 The production of beams of negative deuterium ions was studied with two ion sources with geometries that could be employed in a cyclotron. The negative ions were extracted directly from the arc in a direction normal to the magnetic field without using a charge-exohange medium. With a high gas pressure in the arc and an arc current of 5 amp, a 2-ma beam
Ehlers, Kenneth W. +2 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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The conceptual design of NNBI electrostatic residual ion dump for fusion reactor
He jishu, 2022 BackgroundNegative ion source based on neutral beam injector is an important auxiliary heating and current driving system for the China Fusion Experimental Test Reactor (CFETR).
LI Chao +6 more
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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
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Negative Ion Extraction from a Large RF Negative Ion Source [PDF]
Negative Ion Extraction from a Large RF Negative Ion SourceA. Ando +6 more
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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
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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
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