Space Debris Contamination Problem in Highly-Elliptical and La gra ngian Point Orbits. An Option for Scientific Satellites

2019 ◽  
Author(s):  
I. D. Kovalenko ◽  
◽  
N. A. Eismont ◽  
L. M. Zelenyi ◽  
◽  
...  
Keyword(s):  
Space Debris ◽  
Contamination Problem

An Attack on the Contamination Problem in the Electron Microscope

1967 ◽  
Vol 25 ◽  
pp. 368-368
Author(s):  
J. J. Kelsch ◽  
A. Holtz
Keyword(s):  
Electron Microscope ◽  
Pressure Gradient ◽  
Ionization Potential ◽  
Simple Solution ◽  
Specimen Surface ◽  
Contamination Rate ◽  
Local Pressure ◽  
High Ionization ◽  
Hydrocarbon Molecules ◽  
Contamination Problem

A simple solution to the serious problem of specimen contamination in the electron microscope is presented. This is accomplished by the introduction of clean helium into the vacuum exactly at the specimen position. The local pressure gradient thus established inhibits the migration of hydrocarbon molecules to the specimen surface. The high ionization potential of He permits the use of relatively large volumes of the gas, without interfering with gun stability. The contamination rate is reduced on metal samples by a factor of 10.

Dynamic effect of a plasma beam on a space debris object

2017 ◽  
Vol 23 (1) ◽  
pp. 36-49
Author(s):  
V.A. Shuvalov ◽  
◽  
N.B. Gorev ◽  
N.A. Tokmak ◽  
N.I. Pismennyi ◽  
...  
Keyword(s):  
Space Debris ◽  
Dynamic Effect ◽  
Plasma Beam

Development of the Explosion Breakup Model for Space Debris

2009 ◽  
Vol 57 (663) ◽  
pp. 135-140
Author(s):  
Hidehiro HATA ◽  
Tetsuyuki HIROE ◽  
Kazuhito FUJIWARA
Keyword(s):  
Space Debris ◽  
Breakup Model

Active extermination of space debris in near-Earth...

2005 ◽  
Author(s):  
Yunir V. Gataullin ◽  
Diana V. Zahidova ◽  
Vakil Kh. Gataullin
Keyword(s):  
Space Debris

Results of GEO space debris studies in 2004-2005

2006 ◽  
Author(s):  
Vladimir Agapov ◽  
Thomas Schildknecht ◽  
Efraim Akim ◽  
Igor Molotov ◽  
Victor Stepanyants ◽  
...  
Keyword(s):  
Space Debris
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