Oxygen-free transport of samples in silane-doped inert gas atmospheres for surface analysis

2021 ◽  
Vol 39 (5) ◽  
pp. 054204
Author(s):  
René Gustus ◽  
Maik Szafarska ◽  
Wolfgang Maus-Friedrichs
Keyword(s):  
Surface Analysis ◽  
Inert Gas ◽  
Free Transport

Fission Gas Bubbles in Fractured UO2

1968 ◽  
Vol 26 ◽  
pp. 286-287
Author(s):  
O. M. Katz
Keyword(s):  
Electron Microscopy ◽  
Thermal Gradient ◽  
Gas Bubbles ◽  
Inert Gas ◽  
Thermal Gradients ◽  
Fission Gas ◽  
Beam Heating ◽  
Limited Application ◽  
Bubble Characteristics ◽  
Electron Beam Heating

The swelling of irradiated UO2 has been attributed to the migration and agglomeration of fission gas bubbles in a thermal gradient. High temperatures and thermal gradients obtained by electron beam heating simulate reactor behavior and lead to the postulation of swelling mechanisms. Although electron microscopy studies have been reported on UO2, two experimental procedures have limited application of the results: irradiation was achieved either with a stream of inert gas ions without fission or at depletions less than 2 x 1020 fissions/cm3 (∼3/4 at % burnup). This study was not limited either of these conditions and reports on the bubble characteristics observed by transmission and fractographic electron microscopy in high density (96% theoretical) UO2 irradiated between 3.5 and 31.3 x 1020 fissions/cm3 at temperatures below l600°F. Preliminary results from replicas of the as-polished and etched surfaces of these samples were published.

Inert-gas crystals with imbedded impurities

1978 ◽  
Vol 125 (6) ◽  
pp. 331-349 ◽  
Author(s):  
Boris M. Smirnov
Keyword(s):  
Inert Gas

Surface analysis system by VUV photons-stimulated desorption

2010 ◽  
Author(s):  
Masahito Katto ◽  
Atushi Yokotani ◽  
Masanori Kaku ◽  
Shoichi Kubodera ◽  
Nobuyoshi Miyabayashi ◽  
...  
Keyword(s):  
Surface Analysis ◽  
Analysis System
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