Physics
Scientific paper
Dec 2005
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005phrvb..72x5422t&link_type=abstract
Physical Review B, vol. 72, Issue 24, id. 245422
Physics
11
Ion Radiation Effects, Impact Phenomena
Scientific paper
We have conducted experiments on the sputtering of water ice by 100 keV Ar+ between 20 and 150 K. Our findings indicate that the temperature dependence of the total sputtering yield is heavily influenced by the thermal and irradiation history of the ice, showing a complex dependence on irradiation fluence that is correlated to the ejection of O2 molecules. The results suggest that O2 produced by the ions inside the ice diffuses to the surface where it is trapped and then ejected via sputtering or thermal desorption. A high concentration of O2 can trap in a subsurface layer during bombardment at 130 K, which we relate to the formation of hydrogen and its escape from that region. A simple model allows us to determine the depth profile of the absolute concentration of O2 trapped in the ice.
Baragiola Raúl A.
Shi Jianrong
Teolis B. D.
Vidal Romero A.
No associations
LandOfFree
Mechanisms of O2 sputtering from water ice by keV ions does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Mechanisms of O2 sputtering from water ice by keV ions, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Mechanisms of O2 sputtering from water ice by keV ions will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1467890