Track formation inSiO2quartz and the thermal-spike mechanism

1994 ◽  
Vol 49 (18) ◽  
pp. 12457-12463 ◽  
Author(s):  
A. Meftah ◽  
F. Brisard ◽  
J. M. Costantini ◽  
E. Dooryhee ◽  
M. Hage-Ali ◽  
...  
1980 ◽  
Vol 49 (4) ◽  
pp. 203-212 ◽  
Author(s):  
R. W. Ollerhead ◽  
J. Bøttiger ◽  
J. A. Davies ◽  
J. L'ecuyer ◽  
H. K. Haugen ◽  
...  

2013 ◽  
Vol 46 (6) ◽  
pp. 1558-1563 ◽  
Author(s):  
D. Schauries ◽  
M. Lang ◽  
O. H. Pakarinen ◽  
S. Botis ◽  
B. Afra ◽  
...  

Ion tracks were created in natural quartz and fluorapatite from Durango, Mexico, by irradiation with 2.2 GeV Au ions at elevated temperatures of up to 913 K. The track radii were analysed using small-angle X-ray scattering, revealing an increase in the ion track radius of approximately 0.1 nm per 100 K increase in irradiation temperature. Molecular dynamics simulations and thermal spike calculations are in good agreement with these values and indicate that the increase in track radii at elevated irradiation temperatures is due to a lower energy required to reach melting of the material. The post-irradiation annealing behaviour studied for apatite remained unchanged.


1997 ◽  
Vol 504 ◽  
Author(s):  
G. Szenes

ABSTRACTThe damage cross section velocity effect is studied in LiNbO3, Y3Fe5O12 and SiO2 α-quartz. The application of our thermal spike model reveals that the efficiency of track formation varies by a factor of two in the range of 2–4 MeV/nucleon. The effect is explained by the varying fraction of energy deposition to the lattice involving lattice ions.


2006 ◽  
Vol 3 (1) ◽  
pp. 18-26 ◽  
Author(s):  
B. F. Kostenko ◽  
J. Pribiš ◽  
I. N. Goncharov

1997 ◽  
Vol 481 ◽  
Author(s):  
H. Trinkaus ◽  
H. R. Schober

ABSTRACTTrack formation in amorphous solids is treated in terms of viscoelastic shear stress relaxation in thermal spike regions which is followed by the freezing-in of the associated strain increment. The resulting strained tracks are considered to be the mesoscopic defects responsible for anisotropic creep and growth. A recently presented approximate quantitative approach to the problem is reviewed. In addition, a new set of constitutive equations describing the viscous flow in thermal spike regions is suggested and general solutions are discussed.


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