Results 81 to 90 of about 13,240 (212)

Observational Properties of Harmonic EMIC Waves: Statistical Study

Geophysical Research Letters
Electromagnetic ion cyclotron (EMIC) waves are discrete electromagnetic emissions separated by multiple ion gyrofrequencies. Harmonic EMIC waves are defined as waves with a strong electric or magnetic field (or both) at the harmonics of the fundamental ...
Shujie Gu, Xu Liu, Lunjin Chen, M. E. Usanova, Wenyao Gu, Zhiyang Xia   +5 more
doaj   +1 more source

Production of High-Intensity, Highly Charged Ions

, 2014
In the past three decades, the development of nuclear physics facilities for fundamental and applied science purposes has required an increasing current of multicharged ion beams.
Gammino, S.
core   +1 more source

Calculating Quasi‐Linear Diffusion Rates Using Different Methods to Specify the Wave Spectrum

Journal of Geophysical Research: Space Physics, Volume 131, Issue 4, April 2026.
Abstract Quasi‐linear diffusion theory is widely used in radiation belt modeling to describe resonant interactions between charged particles and electromagnetic waves. The diffusion rates depend on the wave spectrum and properties of the background plasma.
J. D. Sadler, R. B. Horne, S. A. Glauert, T. A. Daggitt, J. M. Albert, G. Del Zanna   +5 more
wiley   +1 more source

Hiss Wave Evolution During Substorms Based on Van Allen Probes Observations

Geophysical Research Letters, Volume 53, Issue 5, 16 March 2026.
Abstract Hiss waves frequently occur in the plasmasphere or plumes, playing a key role in energetic electron loss in the Earth's inner magnetosphere. While previous studies have linked hiss wave enhancements in the outer plasmasphere (just inside the plasmapause) to electron injections during substorms, their evolution across various substorm phases ...
Xiao‐Chen Shen, Wen Li, Qianli Ma, Nigel P. Meredith, Xiangning Chu, Murong Qin, Luisa Capannolo, Sheng Huang   +7 more
wiley   +1 more source

Modeling the EMIC Wave‐Induced Acceleration of Energetic Protons in the Io Footprint Tail

Geophysical Research Letters, Volume 53, Issue 5, 16 March 2026.
Abstract The Io footprint tail (FPT) region is crucial for studying the interactions between Io and Jupiter's magnetosphere. In this region, Juno spacecraft observed significant acceleration of energetic protons, concurrently with electromagnetic ion cyclotron (EMIC) waves below the proton gyro‐frequency.
Peng Lu, Xing Cao, Xudong Gu, Binbin Ni, Wei Xu, Shaobei Wang, Minyi Long   +6 more
wiley   +1 more source

Abrupt Disappearance of Plasmaspheric Hiss Inside the Magnetic Dip

Geophysical Research Letters, Volume 53, Issue 5, 16 March 2026.
Abstract Plasmaspheric hiss plays an important role in radiation belt electron dynamics, and its excitation and propagation have long attracted attention. During a substorm, Van Allen Probe B observed the disappearance of plasmaspheric hiss at the magnetic dip, which was driven by the injection of energetic protons.
Yan Zhuang, Chao Yue, Shan Wang, Haimeng Li, Sibo Xu, Xu‐Zhi Zhou, Qiu‐Gang Zong   +6 more
wiley   +1 more source

Imperfection in Semiconductors Leading to High Performance Devices

Advanced Science, Volume 13, Issue 13, 3 March 2026.
Crystalline perfection is typically pursued in semiconductors to enhance device performance. However, through modeling and experimental work, we show that defects can be strategically employed in a specific detection regime to increase sensitivity to extreme values. GaN diodes are demonstrated to effectively detect high‐energy proton beams at fluxes as
Jean‐Yves Duboz, Matilde Siviero, Lucas Lesourd, Eric Frayssinet, Sebastien Chenot, Petter Hofverberg, Sullivan Marafico, Marie Vidal, Maxime Hugues   +8 more
wiley   +1 more source

First evidence of patchy flickering aurora modulated by multi‐ion electromagnetic ion cyclotron waves [PDF]

Geophysical Research Letters, 2017
AbstractElectromagnetic ion cyclotron (EMIC) waves, one of the possible origins of flickering aurora, have been thought to modulate the electron flux at a few thousand kilometers. In fact, flickering aurora with a frequency range of 3–15 Hz has often been identified by ground‐based optical observations and has been interpreted to be caused by O+‐band ...
Yoko Fukuda, Ryuho Kataoka, Herbert Akihito Uchida, Yoshizumi Miyoshi, Donald Hampton, Kazuo Shiokawa, Yusuke Ebihara, Daniel Whiter, Naomoto Iwagami, Kanako Seki   +9 more
openaire   +3 more sources

Current driven electrostatic and electromagnetic ion cyclotron instabilities [PDF]

Growth rates and parameter dependences are calculated for the current driven instabilities of electrostatic (with finite-beta corrections) and electromagnetic ion cyclotron waves.
Forslund, D. W., Kennel, C. F., Kindel, J. M.   +2 more
core   +1 more source

Stochastic Acceleration of Low Energy Electrons in Cold Plasmas [PDF]

, 1996
We investigate the possibility of stochastic acceleration of background low-energy electrons by turbulent plasma waves. We consider the resonant interaction of the charged particles with all branches of the transverse plasma waves propagating parallel to
Achatz U., Achterberg A., Benz A., Julia M. Pryadko, Schlickeiser R., Vahe Petrosian   +5 more
core   +2 more sources