scholarly journals Collisional enhancement of energetic particle Alfvénic resonance width in tokamaks

2019 ◽  
Vol 26 (3) ◽  
pp. 032508 ◽  
Author(s):  
R. B. White ◽  
V. N. Duarte ◽  
N. N. Gorelenkov ◽  
G. Meng
Keyword(s):  
Energetic Particle ◽  
Resonance Width

scholarly journals Unusual enhancement of ~ 30 MeV proton flux in an ICME sheath region

2021 ◽  
Vol 73 (1) ◽  
Author(s):  
Mitsuo Oka ◽  
Takahiro Obara ◽  
Nariaki V. Nitta ◽  
Seiji Yashiro ◽  
Daikou Shiota ◽  
...  
Keyword(s):  
Shock Front ◽  
Energetic Particle ◽  
Leading Edge ◽  
Solar Energetic Particle ◽  
Interplanetary Shock ◽  
Proton Event ◽  
Sheath Region ◽  
Time Profiles ◽  
Energetic Particle Flux ◽  
Mev Protons

AbstractIn gradual Solar Energetic Particle (SEP) events, shock waves driven by coronal mass ejections (CMEs) play a major role in accelerating particles, and the energetic particle flux enhances substantially when the shock front passes by the observer. Such enhancements are historically referred to as Energetic Storm Particle (ESP) events, but it remains unclear why ESP time profiles vary significantly from event to event. In some cases, energetic protons are not even clearly associated with shocks. Here, we report an unusual, short-duration proton event detected on 5 June 2011 in the compressed sheath region bounded by an interplanetary shock and the leading edge of the interplanetary CME (or ICME) that was driving the shock. While < 10 MeV protons were detected already at the shock front, the higher-energy (> 30 MeV) protons were detected about four hours after the shock arrival, apparently correlated with a turbulent magnetic cavity embedded in the ICME sheath region.

scholarly journals Precession drift reversal and rapid transport of trapped energetic particles due to an energetic particle driven instability in the Large Helical Device

2021 ◽  
Vol 28 (8) ◽  
pp. 080701
Author(s):  
M. Idouakass ◽  
Y. Todo ◽  
H. Wang ◽  
J. Wang ◽  
R. Seki ◽  
...  
Keyword(s):  
Energetic Particle ◽  
Energetic Particles ◽  
Rapid Transport

scholarly journals Probing the energetic particle environment near the Sun

Nature ◽  
2019 ◽  
Vol 576 (7786) ◽  
pp. 223-227 ◽  
Author(s):  
D. J. McComas ◽  
E. R. Christian ◽  
C. M. S. Cohen ◽  
A. C. Cummings ◽  
A. J. Davis ◽  
...  
Keyword(s):  
Energetic Particle ◽  
The Sun

Design and Realization of China Tianwen-1 Energetic Particle Analyzer

2021 ◽  
Vol 217 (2) ◽  
Author(s):  
Cunhui Li ◽  
Shuwen Tang ◽  
Xiangyu Hu ◽  
Yi Qian ◽  
Yi Wang ◽  
...  
Keyword(s):  
Energetic Particle
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