High Dose-Rate Radiation Processing of Petroleum Feedstock in a Wide Temperature Range

2013 ◽  
pp. 319-344
1985 ◽  
Vol 45 ◽  
Author(s):  
Marina Berti ◽  
A.V. Drigo ◽  
E. Gabilli ◽  
R. Lotti ◽  
G. Lulli ◽  
...  

ABSTRACTSome renarks about the mechanism for dynamic annealing during high dose rate P implantation of Si are reported. TEM observations and RBS channeling measurements show that the ion bombardment enhances the amorphous to crystalline transformation in the temperature range 200 ≤ T ≤ 600°C. It is found that the ratio between the observed recrystalli-zation velocity and the thermal SPE velocity decreases with increasing temperature. This indicates that a transition temperature must exist between the ion-assisted recrystallization regime and the ?lermal SPE regime. For the energy (100 keV) and the dose rate (60,uA/cm2) used in our experiments the transition temperature is about 700°C.


RADIOISOTOPES ◽  
2001 ◽  
Vol 50 (7) ◽  
pp. 291-300 ◽  
Author(s):  
Takuji KOJIMA ◽  
Hiroyuki TACHIBANA ◽  
Noriyuki HANEDA ◽  
Hirohisa KANEKO ◽  
Yasuyuki HARUYAMA ◽  
...  

1994 ◽  
Author(s):  
J.L.M. Venselaar ◽  
A.H.L. Aalbers ◽  
W.F.M. Brouwer ◽  
H. Meertens ◽  
J.J. Petersen ◽  
...  

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