Simulation of ionospheric plasma response to sudden change of spacecraft surface potential

2001 ◽  
Author(s):  
Mengu Cho ◽  
Raju Ramasamy ◽  
Masayuki Hikita ◽  
Koji Tanaka ◽  
Susumu Sasaki
Keyword(s):  
Surface Potential ◽  
Ionospheric Plasma ◽  
Sudden Change ◽  
Plasma Response

Plasma Response to Jump of Insulator Surface Potential in Ionospheric Plasma Environment

2002 ◽  
Vol 39 (3) ◽  
pp. 400-408 ◽  
Author(s):  
Mengu Cho ◽  
Raju Ramasamy ◽  
Masayuki Hikita ◽  
Koji Tanaka ◽  
Susumu Sasaki
Keyword(s):  
Surface Potential ◽  
Ionospheric Plasma ◽  
Insulator Surface ◽  
Plasma Environment ◽  
Plasma Response

Ionospheric Plasma Response to M w 8.3 Chile Illapel Earthquake on September 16, 2015

2016 ◽  
Vol 173 (5) ◽  
pp. 1451-1461 ◽  
Author(s):  
C. D. Reddy ◽  
Mahesh N. Shrivastava ◽  
Gopi K. Seemala ◽  
Gabriel González ◽  
Juan Carlos Baez
Keyword(s):  
Ionospheric Plasma ◽  
Plasma Response ◽  
Illapel Earthquake

Ionospheric plasma response to the seismic activity

2006 ◽  
Vol 31 (4-9) ◽  
pp. 473-481 ◽  
Author(s):  
H. Rothkaehl ◽  
R. Bucik ◽  
K. Kudela
Keyword(s):  
Seismic Activity ◽  
Ionospheric Plasma ◽  
Plasma Response

Ionospheric Plasma Response to M w 8.3 Chile Illapel Earthquake on September 16, 2015

2017 ◽  
pp. 145-155 ◽  
Author(s):  
C. D. Reddy ◽  
Mahesh N. Shrivastava ◽  
Gopi k. Seemala ◽  
Gabriel González ◽  
Juan Carlos Baez
Keyword(s):  
Ionospheric Plasma ◽  
Plasma Response ◽  
Illapel Earthquake

Plasma Response to Arcing in Ionospheric Plasma Environment: Laboratory Experiment

2002 ◽  
Vol 39 (3) ◽  
pp. 392-399 ◽  
Author(s):  
Mengu Cho ◽  
Raju Ramasamy ◽  
Masayuki Hikita ◽  
Koji Tanaka ◽  
Susumu Sasaki
Keyword(s):  
Laboratory Experiment ◽  
Ionospheric Plasma ◽  
Plasma Environment ◽  
Plasma Response

The effects of surface absorbed monolayer microdiffraction patterns

1988 ◽  
Vol 46 ◽  
pp. 680-681
Author(s):  
M. Pan ◽  
J.M. Cowley
Keyword(s):  
Surface Potential ◽  
Electron Probe ◽  
Potential Distribution ◽  
Crystal Surface ◽  
Normal Direction ◽  
Surface Image ◽  
Extended Surface ◽  
Gas Molecules ◽  
Surface Nature ◽  
Electron Microdiffraction

Electron microdiffraction patterns, obtained when a small electron probe with diameter of 10-15 Å is directed to run parallel to and outside a flat crystal surface, are sensitive to the surface nature of the crystals. Dynamical diffraction calculations have shown that most of the experimental observations for a flat (100) face of a MgO crystal, such as the streaking of the central spot in the surface normal direction and (100)-type forbidden reflections etc., could be explained satisfactorily by assuming a modified image potential field outside the crystal surface. However the origin of this extended surface potential remains uncertain. A theoretical analysis by Howie et al suggests that the surface image potential should have a form different from above-mentioned image potential and also be smaller by several orders of magnitude. Nevertheless the surface potential distribution may in practice be modified in various ways, such as by the adsorption of a monolayer of gas molecules.

The value of Electron Microscope studies of imperfect natural diamonds

1990 ◽  
Vol 48 (4) ◽  
pp. 194-195
Author(s):  
J C Walmsley ◽  
A R Lang
Keyword(s):  
Electron Microscope ◽  
Classification Scheme ◽  
Natural Diamond ◽  
Sudden Change ◽  
Growth Conditions ◽  
Diamond Growth ◽  
Major Constituent ◽  
Natural Diamonds ◽  
Type Ia ◽  
Platelet Defects

Interest in the defects and impurities in natural diamond, which are found in even the most perfect stone, is driven by the fact that diamond growth occurs at a depth of over 120Km. They display characteristics associated with their origin and their journey through the mantle to the surface of the Earth. An optical classification scheme for diamond exists based largely on the presence and segregation of nitrogen. For example type Ia, which includes 98% of all natural diamonds, contain nitrogen aggregated into small non-paramagnetic clusters and usually contain sub-micrometre platelet defects on {100} planes. Numerous transmission electron microscope (TEM) studies of these platelets and associated features have been made e.g. . Some diamonds, however, contain imperfections and impurities that place them outside this main classification scheme. Two such types are described.First, coated-diamonds which possess gem quality cores enclosed by a rind that is rich in submicrometre sized mineral inclusions. The transition from core to coat is quite sharp indicating a sudden change in growth conditions, Figure 1. As part of a TEM study of the inclusions apatite has been identified as a major constituent of the impurity present in many inclusion cavities, Figure 2.

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