Results 51 to 60 of about 3,816 (192)

Conceptual Design Study of 13 MeV Proton Cyclotron

Atom Indonesia, 2012
A study to determine the conceptual design of a 13 MeV proton cyclotron for PET (Positron Emission Tomography) facility has been carried out. Based on studies on reactions of PET radioisotopes production, reaction cross-sections and some design ...
Silakhuddin , S. Santosa
doaj  

Dependence of ion-cyclotron range of frequencies instabilities on species mix and fast-ion distribution: I. Stability

Nuclear Fusion
Ion cyclotron emission (ICE) driven by fast ions has the potential to be a reactor relevant diagnostic of confined and escaping fast ions; moreover, controlled experiments in magnetic fusion devices can shed light on similar magnetospheric instabilities ...
W.W. Heidbrink, G.H. DeGrandchamp, J.B. Lestz, K.E. Thome, S. Vincena, N.A. Crocker, X.D. Du, R.I. Pinsker, S.X. Tang, M.A. Van Zeeland   +9 more
doaj   +1 more source

Oxygen Ion Percentage Inferred From the Cutoff Frequencies of Ionospheric ELF Hiss Emissions

Geophysical Research Letters, Volume 53, Issue 15, 16 August 2026.
Abstract The lower cutoff frequency of hiss emissions observed in the ionosphere is controlled by local plasma composition and density. This study identifies 6,340 ionospheric hiss wave events based on observations from the China Seismo‐Electromagnetic Satellite (CSES‐01) from 1 August 2018 to 31 July 2020.
Bin He, Wenlong Liu, Jiangzhao Ai, Dianjun Zhang, Zeren Zhima, Theodore E. Sarris, Li Zeng, Zhao Zhang, Dapeng Liu   +8 more
wiley   +1 more source

Predicting ion cyclotron emission from neutral beam heated plasmas in Wendelstein7-X stellarator

Nuclear Fusion
Measurements 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, R.O. Dendy, S.C. Chapman, D. Moseev, R. Ochoukov   +4 more
doaj   +1 more source

Magnetic Field Disturbance Induced by the Enhanced Suprathermal Ring Current in the Magnetosphere of Saturn

Geophysical Research Letters, Volume 53, Issue 15, 16 August 2026.
Abstract Saturn's ring current, which modulates the global magnetic field configuration, varies dynamically with hot plasma injections. However, quantifying transient magnetic field disturbances remains challenging in the absence of in situ measurements on Saturn's surface.
Yimeng Li, Chao Yue, Yongfu Wang, Konstantinos Dialynas, Yixin Sun, Qiugang Zong, Yixin Hao, Xuzhi Zhou   +7 more
wiley   +1 more source

The consequences of tritium mix for simulated ion cyclotron emission spectra from deuterium-tritium plasmas

Nuclear Fusion
Measurements 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, S.C. Chapman, R.O. Dendy   +2 more
doaj   +1 more source

Generation of Falling‐Tone Whistler‐Mode Chorus Waves in the Earth's Magnetosphere

Geophysical Research Letters, Volume 53, Issue 15, 16 August 2026.
Abstract Chorus waves are intense whistler‐mode emissions in space that play a key role in regulating energetic electron dynamics in the hazardous radiation belt. While rising‐tone chorus has been extensively studied, the generation mechanism of falling‐tone chorus remains a long‐standing problem.
Huayue Chen, Xueyi Wang, Rui Chen, Yoshiharu Omura, Lunjin Chen, Hong Zhao, Yi‐Kai Hsieh   +6 more
wiley   +1 more source

Physics of beam-driven ion cyclotron emission in the large plasma device

Nuclear Fusion
Ion 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, R.O. Dendy, S.C. Chapman, S.K.P. Tripathi, T. Carter, B. Van Compernolle, J.W.S. Cook   +6 more
doaj   +1 more source

Narrow-band emission with 0.5 to 3.5 Hz varying frequency in the background of the main phase of the 17 March 2013 magnetic storm

Solar-Terrestrial Physics, 2016
We present results of the analysis of an unusually long narrow-band emission in the Pc1 range with increasing carrier frequency. The event was observed against the background of the main phase of a strong magnetic storm caused by arrival of a high-speed ...
Potapov A.S., Dovbnya B.V., Baishev D.G., Polyushkina T.N., Rakhmatulin R.A.   +4 more
doaj   +1 more source

New interpretation of ion cyclotron emission from a tokamak

Physics of Plasmas
The tempting interpretation of ion cyclotron emission in terms of compressional Alfvén eigenmodes involving energetic ions is inconsistent with recent TCV experimental observations in some important aspects, such as (i) the perturbed poloidal field is exceeding the parallel perturbed magnetic field significantly, and (ii) the modes are near cyclotron ...
B. N. Breizman, M. B. Dreval, S. E. Sharapov   +2 more
openaire   +1 more source