Energetic ions and electrons and their acceleration processes in the magnetotail

1984 ◽  
pp. 216-227 ◽  
Author(s):  
Manfred Scholer
Keyword(s):  
Energetic Ions

Observations of energetic ions on the nightside of Venus

1987 ◽  
Vol 92 (A1) ◽  
pp. 291 ◽  
Author(s):  
W. T. Kasprzak ◽  
H. B. Niemann ◽  
P. Mahaffy
Keyword(s):  
Energetic Ions

scholarly journals Nanofabrication using home-made RF plasma coupled chemical vapour deposition system

2014 ◽  
Vol 32 ◽  
pp. 1460342
Author(s):  
Si Ci Ong ◽  
Usman Ilyas ◽  
Rajdeep Singh Rawat
Keyword(s):  
Chemical Vapour ◽  
Chemical Vapor ◽  
Wide Band ◽  
Zno Nanowires ◽  
Operating Conditions ◽  
Rf Plasma ◽  
Zno Nanostructures ◽  
Energetic Ions ◽  
Cvd Method ◽  
Etching Effect

Zinc oxide, ZnO , a popular semiconductor material with a wide band gap (3.37 eV) and high binding energy of the exciton (60 meV), has numerous applications such as in optoelectronics, chemical/biological sensors, and drug delivery. This project aims to (i) optimize the operating conditions for growth of ZnO nanostructures using the chemical vapor deposition (CVD) method, and (ii) investigate the effects of coupling radiofrequency (RF) plasma to the CVD method on the quality of ZnO nanostructures. First, ZnO nanowires were synthesized using a home-made reaction setup on gold-coated and non-coated Si (100) substrates at 950 °C. XRD, SEM, EDX, and PL measurements were used for characterizations and it was found that a deposition duration of 10 minutes produced the most well-defined ZnO nanowires. SEM analysis revealed that the nanowires had diameters ranging from 30-100 mm and lengths ranging from 1-4 µm. In addition, PL analysis showed strong UV emission at 380 nm, making it suitable for UV lasing. Next, RF plasma was introduced for 30 minutes. Both remote and in situ RF plasma produced less satisfactory ZnO nanostructures with poorer crystalline structure, surface morphology, and optical properties due to etching effect of energetic ions produced from plasma. However, a reduction in plasma discharge duration to 10 minutes produced thicker and shorter ZnO nanostructures. Based on experimentation conducted, it is insufficient to conclude that RF plasma cannot aid in producing well-defined ZnO nanostructures. It can be deduced that the etching effect of energetic ions outweighed the increased oxygen radical production in RF plasma nanofabrication.

Influence of trapped energetic ions on low-frequency magnetohydrodynamic instabilities with reversed shear profile

2021 ◽  
Vol 28 (1) ◽  
pp. 012104
Author(s):  
Baofeng Gao ◽  
Huishan Cai ◽  
Feng Wang ◽  
Xiang Gao ◽  
Yuanxi Wan
Keyword(s):  
Low Frequency ◽  
Energetic Ions ◽  
Reversed Shear

scholarly journals Chapter 5: Physics of energetic ions

1999 ◽  
Vol 39 (12) ◽  
pp. 2471-2495 ◽  
Author(s):  
ITER Physics Expert Group on Energe Drive ◽  
ITER Physics Basis Editors
Keyword(s):  
Energetic Ions

Angular Distributions of K-Shell Auger Electrons for Carbon, Nitrogen, Oxygen and Neon Excited by Energetic Ions

1979 ◽  
Vol 47 (1) ◽  
pp. 234-239 ◽  
Author(s):  
Naoto Kobayashi ◽  
Takatoshi Irie ◽  
Nobuhiro Maeda ◽  
Hiroshi Kojima ◽  
Shin-ichi Akanuma ◽  
...  
Keyword(s):  
Angular Distributions ◽  
Auger Electrons ◽  
Energetic Ions

scholarly journals Titan's exosphere and its interaction with Saturn's magnetosphere

2008 ◽  
Vol 367 (1889) ◽  
pp. 743-752 ◽  
Author(s):  
Iannis Dandouras ◽  
Philippe Garnier ◽  
Donald G Mitchell ◽  
Edmond C Roelof ◽  
Pontus C Brandt ◽  
...  
Keyword(s):  
Magnetic Field ◽  
Remote Sensing ◽  
Charge Exchange ◽  
Mass Spectrometer ◽  
Upper Atmosphere ◽  
Neutral Atoms ◽  
Energetic Ions ◽  
Imaging Instrument ◽  
Singly Charged

Titan's nitrogen-rich atmosphere is directly bombarded by energetic ions, due to its lack of a significant intrinsic magnetic field. Singly charged energetic ions from Saturn's magnetosphere undergo charge-exchange collisions with neutral atoms in Titan's upper atmosphere, or exosphere, being transformed into energetic neutral atoms (ENAs). The ion and neutral camera, one of the three sensors that comprise the magnetosphere imaging instrument (MIMI) on the Cassini/Huygens mission to Saturn and Titan, images these ENAs like photons, and measures their fluxes and energies. These remote-sensing measurements, combined with the in situ measurements performed in the upper thermosphere and in the exosphere by the ion and neutral mass spectrometer instrument, provide a powerful diagnostic of Titan's exosphere and its interaction with the Kronian magnetosphere. These observations are analysed and some of the exospheric features they reveal are modelled.

Suppression of Trapped Energetic Ions Driven Resistive Interchange Modes with Electron Cyclotron Heating in a Helical Plasma

2017 ◽  
Vol 118 (12) ◽  
Author(s):  
X. D. Du ◽  
K. Toi ◽  
S. Ohdachi ◽  
K. Y. Watanabe ◽  
H. Takahashi ◽  
...  
Keyword(s):  
Electron Cyclotron ◽  
Electron Cyclotron Heating ◽  
Energetic Ions

scholarly journals A subauroral polarization stream driven by field‐aligned currents associated with precipitating energetic ions caused by EMIC waves: A case study

2016 ◽  
Vol 121 (2) ◽  
pp. 1696-1705 ◽  
Author(s):  
Zhigang Yuan ◽  
Ying Xiong ◽  
Zheng Qiao ◽  
Haimeng Li ◽  
Shiyong Huang ◽  
...  
Keyword(s):  
Energetic Ions ◽  
Emic Waves
Sign in / Sign up

Export Citation Format

Share Document