Atom Transport in Nickel by Displacement Cascades for Spatially Dependent Displacement Rate and Sink Strength

1996 ◽  
Vol 439 ◽  
Author(s):  
H. Wollenberger ◽  
P. Fielitz ◽  
M.-P. Macht ◽  
V. Naundorf
Keyword(s):  
Diffusion Equation ◽  
Single Crystals ◽  
Ion Irradiation ◽  
Displacement Rate ◽  
Sink Strength ◽  
Production Rates ◽  
Dynamical Equilibrium ◽  
Self Diffusion ◽  
Spatially Resolved ◽  
Different Depths

AbstractAtom transport under irradiation is determined by the concentration of freely migrating defects, which depends on the dynamical equilibrium between production and annihilation rates. In order to determine effective values of both of these quantities for the case of ion irradiation, spatially resolved self-diffusion measurements were performed on single crystals of nickel which contained several thin tracer layers at different depths. By fitting the solution of a diffusion equation to the depth dependent measurements effective fractional production rates of freely migrating defects and effective sink strengths have been obtained.

Sink Strength Evolution of Heavy Ion Irradiated Nickel

1998 ◽  
Vol 540 ◽  
Author(s):  
P. Fielitz ◽  
M.-P. Macht ◽  
V. Naundorf ◽  
H. Wollenberger
Keyword(s):  
Ion Irradiation ◽  
Heavy Ion ◽  
Irradiation Temperature ◽  
Sink Strength ◽  
Enhanced Diffusion ◽  
Self Diffusion ◽  
Spatially Resolved ◽  
Radiation Enhanced Diffusion ◽  
Strength Evolution ◽  
Different Depths

AbstractAtom transport under irradiation is determined by the concentration of freely migrating defects, which depends on the dynamical equilibrium between production and annihilation rates. In order to determine effective values of both of these quantities for the case of ion irradiation, spatially resolved self-diffusion measurements were performed on single crystals of nickel which contained several thin tracer layers at different depths.For fixed depth the radiation-enhanced diffusion coefficient (DK) was determined as function of displacement rate (K0) and fluence (Φ). The DK essentially representing the ratio of the rates of production and annihilation was found to be proportional to K0 for 800 K irradiation temperature and to K00.4for Ni and K00.4for Kr irradiation at 950 K. It is independent of Φ for 800 K and decreases with increasing Φ for 950 K.

Self Diffusion in Cyclohexane Single Crystals

1966 ◽  
Vol 1 (1) ◽  
pp. 97-112 ◽  
Author(s):  
G. M. Hood ◽  
J. N. Sherwood
Keyword(s):  
Single Crystals ◽  
Self Diffusion

Spatially resolved micro-photoluminescence imaging of porphyrin single crystals

2016 ◽  
Vol 659 ◽  
pp. 137-141 ◽  
Author(s):  
Dawn M. Marin ◽  
Jose Castaneda ◽  
Meesha Kaushal ◽  
Ghallia Kaouk ◽  
Daniel S. Jones ◽  
...  
Keyword(s):  
Single Crystals ◽  
Spatially Resolved

Photoluminescence enhancement and high accuracy patterning of lead halide perovskite single crystals by MeV ion beam irradiation

2020 ◽  
Vol 8 (29) ◽  
pp. 9923-9930 ◽  
Author(s):  
Milan Palei ◽  
M. Motapothula ◽  
Aniruddha Ray ◽  
Ahmed L. Abdelhady ◽  
Luca Lanzano ◽  
...  
Keyword(s):  
Single Crystals ◽  
Ion Irradiation ◽  
Ion Beam ◽  
High Accuracy ◽  
Enhancement Effect ◽  
Beam Irradiation ◽  
Ion Beam Irradiation ◽  
Photoluminescence Enhancement ◽  
Halide Perovskite ◽  
Lead Halide

Using MeV ion irradiation, a PL enhancement effect of MAPbBr3 single crystals is demonstrated.

Effect of Heavy Ion Irradiation on Flux Pinning Properties of Bi2212 and Bi(Pb)2212 Single Crystals Having Various γ 2

1999 ◽  
pp. 465-468 ◽  
Author(s):  
Jun-ichi Shimoyama ◽  
Yuri Nakayama ◽  
Teruki Motohashi ◽  
Kenji Otzschi ◽  
Noriko Chikumoto ◽  
...  
Keyword(s):  
Single Crystals ◽  
Flux Pinning ◽  
Ion Irradiation ◽  
Heavy Ion ◽  
Heavy Ion Irradiation ◽  
Pinning Properties

scholarly journals Spatially resolved evolution of the local H2O production rates of comet 67P/Churyumov-Gerasimenko from the MIRO instrument on Rosetta

2017 ◽  
Vol 603 ◽  
pp. A87 ◽  
Author(s):  
D. W. Marshall ◽  
P. Hartogh ◽  
L. Rezac ◽  
P. von Allmen ◽  
N. Biver ◽  
...  
Keyword(s):  
Production Rates ◽  
Spatially Resolved ◽  
Comet 67P
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