Results 1 to 10 of about 566,131 (69)
Nuclear FusionThis study investigates the ion cyclotron emission (ICE) excited by tritium ions generated through deuterium‒deuterium fusion reactions in the Experimental Advanced Superconducting Tokamak (EAST). ICE is an electromagnetic instability driven by fast ions,
Huapeng Zhang +5 more
doaj +4 more sources
Interpretation of Core Ion Cyclotron Emission Driven by Sub-Alfvénic Beam-Injected Ions via Magnetoacoustic Cyclotron Instability [PDF]
Nuclear Fusion, 2019 Core ion cyclotron emission (ICE) signals have recently been observed in beam-heated plasmas on several tokamaks. In this manuscript we present experimental evidence in support of core ICE being generated by the magnetoacoustic cyclotron instability (MCI), itself driven by the velocity-space inversion of sub-Alfvenic beam-injected ions.
Benjamin Chapman +2 more
exaly +5 more sources
Explanation of core ion cyclotron emission from beam-ion heated plasmas in ASDEX Upgrade by the magnetoacoustic cyclotron instability [PDF]
Nuclear Fusion, 2020 Abstract Bursts of ion cyclotron emission (ICE), with spectral peaks corresponding to the hydrogen cyclotron harmonic frequencies in the plasma core are detected from helium plasmas heated by sub-Alfvénic beam-injected hydrogen ions in the ASDEX Upgrade tokamak. Based on the fast ion distribution function obtained from TRANSP/NUBEAM code,
Lunan Liu +14 more
core +5 more sources
The consequences of tritium mix for simulated ion cyclotron emission spectra from deuterium-tritium plasmas [PDF]
Nuclear FusionMeasurements of ion cyclotron emission (ICE) are obtained from most large magnetically confined fusion plasma experiments, and may be used in future to quantify properties of the fusion-born alpha-particle population in deuterium-tritium (DT) plasmas in ...
T.W. Slade-Harajda +2 more
doaj +2 more sources
Physics of PlasmasSpontaneously excited ion cyclotron emission (ICE) provides a passive diagnostic of the physics of energetic ions in most contemporary toroidal magnetically confined fusion plasmas. ICE is typically driven by spatially localized, strongly non-Maxwellian, energetic ion populations relaxing collectively under the magnetoacoustic cyclotron instability ...
Sandra Chapman
exaly +2 more sources
A linear parameters study of ion cyclotron emission using drift ring beam distribution
Nuclear Fusion, 2023 Ion Cyclotron Emission (ICE) holds great potential as a diagnostic tool for fast ions in fusion devices. The theory of Magnetoacoustic Cyclotron Instability (MCI), as an emission mechanism for ICE, states that MCI is driven by a velocity distribution of ...
Haozhe Kong, Huasheng Xie, Jizhong Sun
doaj +1 more source
Predicting ion cyclotron emission from neutral beam heated plasmas in Wendelstein7-X stellarator
Nuclear FusionMeasurements of ion cyclotron emission (ICE) are planned for magnetically confined fusion plasmas heated by neutral beam injection (NBI) in the Wendelstein 7-X stellarator (W7-X).
O. Samant +4 more
doaj +1 more source
Physics of beam-driven ion cyclotron emission in the large plasma device
Nuclear FusionIon cyclotron emission (ICE) is widely observed from spatially localised minority energetic ion populations in toroidal magnetically confined fusion (MCF) plasmas, both tokamaks and stellarators.
O. Samant +6 more
doaj +1 more source
Nuclear FusionStudies of future aneutronic fusion plasmas, such as those comprising deuterium and helium-3 (D– $^3\mathrm{He}$ $\rightarrow \mathrm{^4He}+p$ ), may not be able to exploit neutron-based diagnostics for direct measurement of fusion reactivity.
T.W. Slade-Harajda +2 more
doaj +1 more source
The TeV Cosmic-Ray Bump: A Message from the Epsilon Indi or Epsilon Eridani Star? [PDF]
Astrophys J, 2021 Malkov MA, Moskalenko IV.
europepmc +1 more source