Angular distribution and differential sputtering yields for low-energy light-ion irradiation of polycrystalline nickel and tungsten

1980 ◽  
Vol 21 (4) ◽  
pp. 327-333 ◽  
Author(s):  
H. L. Bay ◽  
J. Bohdansky ◽  
W. O. Hofer ◽  
J. Roth
Keyword(s):  
Angular Distribution ◽  
Ion Irradiation ◽  
Low Energy ◽  
Polycrystalline Nickel ◽  
Sputtering Yields ◽  
And Tungsten

Influence of Low-Energy Ion Irradiation on Plasma Membrane Permeability of Cells

2000 ◽  
Vol 17 (1) ◽  
pp. 61-63
Author(s):  
Dong-Mei Zhang ◽  
Fu-Zhai Cui ◽  
Su-Qin Sun ◽  
You-Bo Lin ◽  
Min-Bo Tian ◽  
...  
Keyword(s):  
Plasma Membrane ◽  
Membrane Permeability ◽  
Ion Irradiation ◽  
Low Energy ◽  
Plasma Membrane Permeability

Angular Distribution of Rotons Generated by Alpha Particles in Superfluid Helium: A Possible Tool for Low Energy Particle Detection

1995 ◽  
Vol 74 (16) ◽  
pp. 3169-3172 ◽  
Author(s):  
S. R. Bandler ◽  
S. M. Brouër ◽  
C. Enss ◽  
R. E. Lanou ◽  
H. J. Maris ◽  
...  
Keyword(s):  
Angular Distribution ◽  
Superfluid Helium ◽  
Alpha Particles ◽  
Low Energy ◽  
Energy Particle ◽  
Particle Detection

Modification of Barium Cerate by Heavy Ion Irradiation

2013 ◽  
Vol 781-784 ◽  
pp. 357-361 ◽  
Author(s):  
Igor V. Khromushin ◽  
Taтiana I. Aksenova ◽  
Turgora Tuseyev ◽  
Karlygash K. Munasbaeva ◽  
Yuri V. Ermolaev ◽  
...  
Keyword(s):  
Structural Changes ◽  
Solid Phase ◽  
Ion Irradiation ◽  
Heavy Ion ◽  
High Energy ◽  
Low Energy ◽  
Barium Cerate ◽  
Weakly Bound ◽  
Ion Ranges ◽  
High Energy Ions

The effect of irradiation with heavy ions Ne, Ar, and Kr of various energies on the structure and properties of ceramic barium cerate doped with neodymium and annealed in air at 650°C for 7 hours is studied. It is noted that blistering was observed on cerate surface during its irradiation by low energy Ne ions, whereas it was not observed under low-energy Ar and Kr ions irradiation. Irradiation of the cerate with high energy ions caused partial amorphization of the irradiated surface of the material, while the structure of the non-irradiated surface did not change. In addition, the irradiated surface of the cerate endured solid-phase structural changes. Thus, upon high-energy ions irradiation in the range of Ne, Ar, Kr the cerate surface resembled the stages of spherulite formation - nucleation, growth (view of cauliflower), formation of spherulitic crust, respectively. The increase in water molecules release and reduction of molecular oxygen release from the barium cerate, irradiated by high-energy ions is found during vacuum constant rate heating. It is concluded that cerates undergo changes to the distances significantly exceeding the ion ranges in these materials. Features of high-energy ions influence on thermal desorption of carbon dioxide from cerates show, apparently, the formation of weakly bound carbonate compounds on the cerate surface in the irradiation process.

scholarly journals Tuning surface porosity on vanadium surface by low energy He+ ion irradiation

2016 ◽  
Vol 378 ◽  
pp. 63-72 ◽  
Author(s):  
J.K. Tripathi ◽  
T.J. Novakowski ◽  
A. Hassanein
Keyword(s):  
Ion Irradiation ◽  
Low Energy ◽  
Surface Porosity

THE ANGULAR DISTRIBUTION OF PHOTOFISSION FRAGMENTS

1959 ◽  
Vol 37 (12) ◽  
pp. 1418-1437 ◽  
Author(s):  
A. P. Baerg ◽  
R. M. Bartholomew ◽  
F. Brown ◽  
L. Katz ◽  
S. B. Kowalski
Keyword(s):  
Angular Distribution ◽  
Low Energy ◽  
Photon Beam ◽  
Angular Distributions ◽  
Bremsstrahlung Energy ◽  
Isotropic Distribution ◽  
Degree Of Anisotropy ◽  
Maximum Bremsstrahlung Energy

Angular distributions of photofission fragments relative to the photon beam have been measured as a function of maximum bremsstrahlung energy in the range 6–20 Mev. The nuclides U-233, U-235, Np-237, Pu-239, and Am-241 give an isotropic distribution at all energies studied. The nuclides Th-232, U-234, U-236, U-238, and Pu-240 give anisotropic distributions which can be described by an equation of the form W(θ) = 1 + α sin2 θ where θ is the angle between fragment and beam. The degree of anisotropy is large at low energy and falls rapidly as the energy is increased. At a given energy Th-232 has the greatest degree of anisotropy and Pu-240 the least.

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