scholarly journals Online in situ x-ray diffraction setup for structural modification studies during swift heavy ion irradiation

2012 ◽  
Vol 83 (1) ◽  
pp. 013902 ◽  
Author(s):  
C. Grygiel ◽  
H. Lebius ◽  
S. Bouffard ◽  
A. Quentin ◽  
J. M. Ramillon ◽  
...  
Keyword(s):  
Structural Modification ◽  
Ion Irradiation ◽  
Heavy Ion ◽  
X Ray Diffraction ◽  
Swift Heavy Ion Irradiation ◽  
X Ray ◽  
Heavy Ion Irradiation ◽  
Swift Heavy Ion

In-situ transport and microstructural evolution in GaN Schottky diodes and epilayers exposed to swift heavy ion irradiation

2018 ◽  
Vol 123 (16) ◽  
pp. 161539 ◽  
Author(s):  
Ashish Kumar ◽  
R. Singh ◽  
Parmod Kumar ◽  
Udai B. Singh ◽  
K. Asokan ◽  
...  
Keyword(s):  
Microstructural Evolution ◽  
Ion Irradiation ◽  
Schottky Diodes ◽  
Heavy Ion ◽  
Swift Heavy Ion Irradiation ◽  
Heavy Ion Irradiation ◽  
Swift Heavy Ion

scholarly journals Effects of swift heavy ion irradiation on structural, optical and photocatalytic properties of ZnO–CuO nanocomposites prepared by carbothermal evaporation method

2015 ◽  
Vol 6 ◽  
pp. 928-937 ◽  
Author(s):  
Sini Kuriakose ◽  
D K Avasthi ◽  
Satyabrata Mohapatra
Keyword(s):  
Photocatalytic Activity ◽  
Ion Irradiation ◽  
Heavy Ion ◽  
X Ray Diffraction ◽  
Visible Absorption ◽  
Swift Heavy Ion Irradiation ◽  
Heavy Ion Irradiation ◽  
Swift Heavy Ion ◽  
Nanocomposite Thin Films ◽  
Sun Light

ZnO–CuO nanocomposite thin films were prepared by carbothermal evaporation of ZnO and Cu, combined with annealing. The effects of 90 MeV Ni7+ ion irradiation on the structural and optical properties of ZnO–CuO nanocomposites were studied by using X-ray diffraction (XRD), field emission scanning electron microscopy (FESEM), UV–visible absorption spectroscopy and Raman spectroscopy. XRD studies showed the presence of ZnO and CuO nanostructures in the nanocomposites. FESEM images revealed the presence of nanosheets and nanorods in the nanocomposites. The photocatalytic activity of ZnO–CuO nanocomposites was evaluated on the basis of degradation of methylene blue (MB) and methyl orange (MO) dyes under sun light irradiation and it was observed that swift heavy ion irradiation results in significant enhancement in the photocatalytic efficiency of ZnO–CuO nanocomposites towards degradation of MB and MO dyes. The possible mechanism for the enhanced photocatalytic activity of ZnO–CuO nanocomposites is proposed. We attribute the observed enhanced photocatalytic activity of ZnO–CuO nanocomposites to the combined effects of improved sun light utilization and suppression of the recombination of photogenerated charge carriers in ZnO–CuO nanocomposites.

Swift Heavy Ion Irradiation on Quasicrystals

2003 ◽  
Vol 805 ◽  
Author(s):  
Ratnamala Chatterjee
Keyword(s):  
Ion Irradiation ◽  
Heavy Ion ◽  
Ex Situ ◽  
X Ray Diffraction ◽  
Resistivity Measurements ◽  
Heavy Ion Irradiation ◽  
Swift Heavy Ion ◽  
Before And After ◽  
Level Of Understanding

ABSTRACTThe present level of understanding of the effects of irradiation of quasicrystalline targets with swift heavy ions has been reviewed here. The results of systematic deposition of large amount of energy densities (12 keV/nm < (dE/dx)e < 40 keV/nm) in Al-Cu-Fe based system are discussed in terms of resistivity measurements (in-situ measurements of resistivity changes with increasing flux (ions/cm2) and ex-situ resistivity vs temperature measurements before and after irradiation) & standard and high-resolution X-ray diffraction measurements made before and after irradiation. The studies are aimed at understanding the changes that may occur in these alloys as a result of the relaxation of such highly excited states of matter. Also, we attempt to learn whether such changes are typical to the long-range quasicrystallinity of the system or not.

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