neutral beam
Evaluation of Fast-Ion Confinement Using a Radially Injected Neutral Beam in the LHD
... A radial neutral beam (NB) has been in operation on the Large Helical Device (LHD) since 2005. All the fast ions produced by the NB have kinetic energies largely per- pendicular to the magnetic field lines. ...
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Simulation Study of Neutral Beam Injection Heating in the HSX Plasma
... injected neutral beam particles are ionized in the plasma and the generated ener- getic beam ions slow down to heat the ...NBI beam ion birth profile in HSX plasmas using a Monte Carlo algo- ...
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Cesium Neutral Beam and Surface Oxidation Effects on SIMS Analysis at Surface of Silicon
... primary beam that Cs contamination on the order of more than an atomic percent can extend laterally to at least 500µm away from the previously analyzed crater and probably significantly farther if the same sample ...
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Theoretical Study of the Electrostatic Lens Aberrations of a Negative Ion Accelerator for a Neutral Beam Injector
... a neutral beam injector and the space charge e ff ect are theoretically ...a beam core with good beam divergence and a beam halo with poor beam ...the beam core and ...
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Ion Heating Experiments Using Perpendicular Neutral Beam Injection in the Large Helical Device
... tangential neutral beam (NB) injection [7]. There are three beam injectors of negative-ion-based NB with a very high beam energy of 180 keV, which are the main heating devices in LHD, and the ...
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A New Method of Measuring the Magnetic Field in Hot Plasmas Using Helium Neutral Beam Injection
... He neutral beam that can penetrate into hot plasma with a reasonable density value can be used for other di- agnostic ...the neutral beam ...the beam path, through which the He ...
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Influence of Neutral Beam Injection Direction and Magnetic Axis Position on Fast Ion Distribution Function in Large Helical Device
... As neutral beam injection (NBI) is widely used for fast particle heating and is considered to be a heating mech- anism in future fusion devices as well, it is important to study how the direction of NB ...
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Estimation of Ion Beam Trajectories for a Slot Aperture Accelerator of Long Pulse Ion Source in Neutral Beam Injector
... A neutral beam injection (NBI) system has been developed and is being tested for an Experimental Advanced Super- conducting Tokamak (EAST) ...the neutral beam test bed (NBTB) sys- tem, and the ...
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Feasibility Study of Neutral Beam Injection on Chinese First Quasi-Axisymmetric Stellarator (CFQS)
... by neutral beam (NB) injections or ion cyclotron res- onance frequency ...of beam ions is at least two times larger than that of an equivalent-ripple ...
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Analytic Representation for Parallel Flow of Hot Ions Produced by Tangential Neutral Beam Injection
... A neutral beam injection (NBI) system is key equip- ment for a fusion device. One of the most important roles for the system is to heat plasma to a high temperature enough for fusion. Another important role ...
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Optimization of the Accelerators for the ITER Neutral Beam Injector Project
... Two Neutral Beam Injectors (NBI) are foreseen in ITER in order to deliver a total of 33 MW of heating ...the Beam Line Vessel with possibility of vertical access, have improved the availability of ...
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Reich, Matthias (2005): A new diagnostic for ASDEX Upgrade edge ion temperatures by lithium-beam charge exchange recombination spectroscopy. Dissertation, LMU München: Fakultät für Physik
... narrow beam (1 cm) and closely staggered optical fibers (6 mm), unprecedented spatial resolution of edge ion temperatures in all major plasma regimes of the ASDEX Up- grade tokamak was ...lithium beam ...
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JET Joint Undertaking progress report 1987. Report for the period 1 January - 31 December 1987. EUR 11597 EN (EUR-JET-PR5)
... Contents Introduction, Background and Report Summary Technical Achievements during 1987 — — — — — — — — — — Torus Systems Power Supplies and Magnet Systems Neutral Beam Heating System Ra[r] ...
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JET Joint Undertaking report 1978. Report for the period 1 June-31 December 1978. EUR 6300 (EUR-JET-AR1)
... National Swedish Board for Energy Source Development NE 5,9,29,30,33 Netherlands v,35,36 Neutral beam heating 12,16 Neutral beam injection 16 Neutral beam injectors 16,19,20 Neutral inje[r] ...
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Time Evolution of the Rotational Transform Profile in Current-Carrying LHD Plasmas
... beta neutral beam heated plasma and a superdense core plasma in the Large Helical Device (LHD) to investigate the time evolution of the rotational transform profile, which is calculated consistently with ...
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Analysis of Energetic Particle Confinement in LHD Using Neutron Measurement and Simulation Codes
... The deuterium plasma experiment in the Large Heli- cal Device (LHD) started in March 2017 [1–4]. In gen- eral, deuterium fusion plasmas yield fast neutrons due to the deuterium-deuterium (DD) fusion reaction. Because the ...
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Initial Results of Neutron Emission Profile Measurements in LHD Deuterium Plasmas
... The deuterium-tritium fusion reactions will be used in a future nuclear fusion reactor. Because 3.5 MeV alpha particles born in a D-T plasma play a role as a main heating source in sustaining ignited condition, good ...
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The JET Joint Undertaking annual report 1984 EUR 10222 EN EUR JET AR7
... The Construction and Development of JET Introduction Summary of Technical Achievements in 1984 Vacuum Systems Magnet Systems Power Supplies Neutral Beam Heating Radio Frequency Heating T[r] ...
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JET Joint Undertaking progress report 1986. Report for the period 1 January - 31 December 1986. EUR 11113 EN (EUR-JET-PR4)
... Contents Introduction, Background and Report Summary Technical Achievements During 1986 — — — — — — — — Torus Systems Power Supplies Neutral Beam Heating System Radio Frequency Heating S[r] ...
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Shear Stress Distribution in Beams
... the beam represents a parabolic curve where the maximum shearing stress occurs at the neutral axis of the ...of beam is done by using ANSYS software. The analysis of beam is done up to the ...
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