Electron irradiation
Electron irradiation of nuclear graphite studied by transmission electron microscopy and electron energy loss spectroscopy
... the electron irradiation induces nanocrystallinity with atomic disorder at crystallite grain boundaries, (Figure 2 and 7), and it is this disorder that reduces the packing efficiency of carbon atoms which ...
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Simulating neutron radiation damage of graphite by in-situ electron irradiation
... The sp 2 percentage in figure 5 dropped from 100% to below 60% after 600 seconds of beam exposure, showing that electron irradiation introduces atomic disorder. In figure 6 it can be seen that the rate in ...
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EFFECTS OF 3.0 MeV ELECTRON IRRADIATION ON 4H-SiC WAFER PROPERTIES
... For irradiation measurements, samples were exposed to electron beam of 3 MeV and 10 mA with a total dose of 100 kGy, 200 kGy up to 500 kGy (depending on the test) at a rate of 50 kGy per ...The ...
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Electron Irradiation Induced Nanocrystallization Behavior in Fe71Zr9B20 Metallic Glass
... electron irradiation at 298 ...specimen electron irradiated at the total dose of 1:2 10 27 m 2 , the BF image in ...new electron diffraction spots during electron irradiation ...
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Growth of dendritic nanostructures by liquid-cell transmission electron microscopy: a reflection of the electron-irradiation history
... transmission electron microscopy (TEM) requires considering the electron-irra- diation history, including the instantaneous dose rate and the cumulative dose delivered to the ...the ...
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Electron Irradiation Induced Phase Transformation in Fe Nd B Alloys
... After irradiation, nano-crystalline precipitates with granular contrast (b), new Debye rings corresponding to - Fe and some intermetallic compounds (d) ...appear. Electron irradiation realizes not ...
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Thermal annealing of nuclear graphite during in-situ electron irradiation
... Electron irradiation of PGA graphite within a transmission electron microscope has been investigated for five temperatures: 83 K, 293 K, 373 K, 423 K and 473 ...during electron exposure and a ...
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Improvement in the photoelectrochemical responses of PCBM/TiO2 electrode by electron irradiation
... by electron irradiation at different fluences ...that electron irradiation technique can be an alternative and unique method to modify the molecular structure and tune the bandgap [22,23] ...
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Electron Irradiation Induced Phase Transformation in Nd2Fe14B Alloy
... the electron irradiated specimen was approximately 10 nm. Under electron irradi- ation, lattice defects are introduced in nanocrystalline grains by electron knock-on ...under electron ...
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Electron Irradiation Induced Crystallization of Supercooled Liquid in Zr Based Alloys
... crystalline precipitates appear from the supercooled liquid. Electron irradiation induced crystallization was confirmed in ternary Zr-based metallic glass as well as binary alloy. The size of crystalline ...
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Investigation of electron irradiation induced-changes in poly(vinylidene fluoride) films
... to electron irradiation were investigated in correlation with the applied ...universal electron beam accelerator to doses in the range of 100–1200 ...reference. Electron irradiation was ...
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In Situ Study of Silicon Single Crystals Conductivity under Electron Irradiation
... There are numerous investigations concerning the influ- ence of irradiations on the properties of solid states (in- cluding silicon) which are carried out before and after irr- adiation [for example 1-14]. The works on ...
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Electron Irradiation Induced Crystal to Amorphous to Crystal Transition in Some Metallic Glasses
... under electron irradiation cannot be discussed based on the simple temperature-free energy diagram because they are not in a thermal equilibrium state due to adequate additional energy provided by ...
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Electron Irradiation Induced Nano Crystallization in Fe77Nd4 5B18 5 Metallic Glass
... transmission electron mi- croscopy (TEM) using a JEM-3010 microscope operated at 300 kV and high resolution transmission electron microscopy (HREM) using a JEM-2010 microscope operated at 200 ...method. ...
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Zn nanodot patterning in borosilicate glasses by electron irradiation
... keV electron beam irradiation in transmission electron ...microscope. Irradiation effects are studied either with stationary electron beam as a time series or with spatially varying ...
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Synthesis and controlled growth of osmium nanoparticles by electron irradiation
... high-energy electron irradiation also leads to a rapid destruction of the turbostratic graphitic ...through irradiation by a widely spread electron beam of a TEM to illu- minate the entire TEM ...
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Tuning the electronic band structure of PCBM by electron irradiation
... the electron fluence (Figure 2A), sug- gesting that the molecular bonds of PCBM are gradually decomposed by electron ...by electron irradia- tion, producing phenyl radicals (Figure ...in ...
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Control of a Nanocomposite Structure in Fe86Nd9B5 Alloy by Electron Irradiation
... the electron knock-on ...under electron irradiation if atomic displacement by the electron knock-on effect occurs more frequently than recovery of the original positions of atomic sublattice by ...
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Thermoluminescence response of doped silicon dioxide optical fibres subjected to electron irradiation
... of electron irradiation concerning sensitivity, linearity, energy dependence, fading signal, reproducibility, minimum detectable dose (MDD) and effective atomic number, Z eff parameters as well as ...
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Electron Irradiation and Photo Excitation Darkening and Bleaching of Yb Doped Silica Fibers: Comparison
... Figure 7 allows a direct comparison of the attenuation spectra for sample YF-3 after dose “3” of e-irradiation (curve 1) and after 2 hours of OP (curve 2). The spectra look qualitatively similar which could ...
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