Ion-beam-induced recrystallization in Si(100) studied with slow positron annihilation and Rutherford backscattering and channeling

1993 ◽  
Vol 70 (1) ◽  
pp. 45-48 ◽  
Author(s):  
N. Hayashi ◽  
R. Suzuki ◽  
M. Hasegawa ◽  
N. Kobayashi ◽  
S. Tanigawa ◽  
...  
Keyword(s):  
Positron Annihilation ◽  
Ion Beam ◽  
Rutherford Backscattering ◽  
Slow Positron

Study of ion-beam-induced epitaxy in Si by slow positron annihilation and RBS channeling

1993 ◽  
Vol 80-81 ◽  
pp. 1006-1009 ◽  
Author(s):  
N. Hayashi ◽  
R. Suzuki ◽  
H. Watanabe ◽  
I. Sakamoto ◽  
N. Kobayashi ◽  
...  
Keyword(s):  
Positron Annihilation ◽  
Ion Beam ◽  
Slow Positron

scholarly journals A new approach to near-surface positron annihilation analysis of ion irradiated ferritic alloys

2021 ◽  
Author(s):  
Vladimir Krsjak ◽  
Petr Hruška ◽  
Jarmila Degmova ◽  
Stanislav Sojak ◽  
Pavol Noga ◽  
...  
Keyword(s):  
Positron Annihilation ◽  
Ion Beam ◽  
Positron Beam ◽  
Ion Beam Irradiation ◽  
Near Surface ◽  
Slow Positron ◽  
New Approach ◽  
Ferritic Alloys ◽  
Positron Annihilation Lifetime ◽  
Variable Energy

The present work provides an innovative approach to the near-surface slow-positron-beam (SPB) study of structural materials exposed to ion-beam irradiation. This approach enables the use of variable-energy positron annihilation lifetime...

Study of the photodegradation of epoxy polymers with slow positron annihilation spectroscopy

2004 ◽  
Vol 42 (13) ◽  
pp. 2441-2459 ◽  
Author(s):  
R. Zhang ◽  
X. Gu ◽  
H. Chen ◽  
J. Zhang ◽  
Y. Li ◽  
...  
Keyword(s):  
Positron Annihilation ◽  
Positron Annihilation Spectroscopy ◽  
Slow Positron ◽  
Epoxy Polymers

scholarly journals Ion-Beam Mixing and Tribology of Fe/B Multilayers

1989 ◽  
Vol 157 ◽  
Author(s):  
Renyuan Hu ◽  
L. E. Rehn ◽  
G. R. Fenske ◽  
P. M. Baldo
Keyword(s):  
Electron Microscopy ◽  
Irradiation Dose ◽  
Activation Enthalpy ◽  
Ion Beam ◽  
Rutherford Backscattering ◽  
Arrhenius Behavior ◽  
Ion Beam Mixing ◽  
Steel Substrates ◽  
M50 Steel

ABSTRACTInterdiffusion of Fe and B trilayer specimens during 1-MeV Kr+ bombardment was studied using Rutherford backscattering and electron microscopy. The square of the interdiffusion distance during mixing at 300°C was found to depend linearly on the irradiation dose. Arrhenius behavior with an apparent activation enthalpy of 0.7 eV was observed for the mixing between 200 and 500°C. Electron microscopy of ion-beam mixed multilayer specimens revealed that two crystalline compounds, Fe2B and Fe3B, formed during bombardment at 450°C, while two different amorphous Fe/B phases formed at 300°C. Substantially improved adhesion and reduced friction were observed for Fe/B multilayers ion-beam mixed onto M50 steel substrates at 450°C.

Pulsed Ion-Beam Induced Reactions of Ni And Co With Amorphous and Single Crystal Silicon

1984 ◽  
Vol 35 ◽  
Author(s):  
J. O. Olowolafe ◽  
R. Fastow
Keyword(s):  
Amorphous Silicon ◽  
Ion Beam ◽  
Single Crystal Silicon ◽  
Reaction Rates ◽  
Rutherford Backscattering ◽  
Thin Layers ◽  
X Ray Diffraction ◽  
Furnace Annealing ◽  
Crystal Silicon ◽  
Transmission Electron

ABSTRACTThin layers (~1,000 A ) of Ni and Co have been reacted with both (100) and amorphous silicon (a-Si) using a pulsed ion beam. Samples were analyzed using Rutherford backscattering, x-ray diffraction, and transmission electron microscopy. Rutherford backscattering showed that the metal/a-Si and metal/(100)-Si reaction rates were comparable. Both reactions began at the composition of the lowest eutectic. For comparison. furnace annealing of the same structures showed that the reaction rate of Ni with amorphous silicon was greater than with (100) Si; Co reacted nearly identically with both substrates. Diffraction data suggest that pulsed ion beam annealing crystallizes the amorphous silicon before the metal/a-Si reaction begins.

A comparative study of defects in LiF implanted with 100 KeV Al+, Mg+and Ar+by slow Positron Annihilation Spectroscopy

2001 ◽  
Vol 155 (1-4) ◽  
pp. 139-144 ◽  
Author(s):  
E. J. Sendezera ◽  
A. T. Davidson ◽  
A. G. Kozakiewicz ◽  
W. Anwand ◽  
G. Brauer ◽  
...  
Keyword(s):  
Comparative Study ◽  
Positron Annihilation ◽  
Positron Annihilation Spectroscopy ◽  
Slow Positron
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