Investigations on graphene oxide for ion beam dosimetry applications

Vacuum ◽  
2020 ◽  
Vol 178 ◽  
pp. 109451
Author(s):  
L. Torrisi ◽  
L. Silipigni ◽  
D. Manno ◽  
A. Serra ◽  
V. Nassisi ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Ion Beam ◽  
Beam Dosimetry

TU-E-BRB-10: Investigation of the Water-to-Air Stopping Power Ratio for Carbon Ion Beam Dosimetry Based on Experimental Data and FLUKA Simulation

2011 ◽  
Vol 38 (6Part29) ◽  
pp. 3768-3769
Author(s):  
D Sanchez-Parcerisa ◽  
A Gemmel ◽  
K Parodi ◽  
O Jäkel ◽  
E Rietzel
Keyword(s):  
Experimental Data ◽  
Ion Beam ◽  
Stopping Power ◽  
Power Ratio ◽  
Carbon Ion ◽  
Carbon Ion Beam ◽  
Beam Dosimetry

scholarly journals Facile synthesis and thermoluminescence properties of nano bio-ceramic β-Ca2P2O7:Dy phosphor irradiated with 75 meV C6+ ion beam

2020 ◽  
Vol 10 (1) ◽  
Author(s):  
Karan Kumar Gupta ◽  
S . J. Dhoble ◽  
Aleksander R. Krupski
Keyword(s):  
Electron Microscopy ◽  
Glow Curve ◽  
Ion Beam ◽  
Wet Chemical Method ◽  
Facile Synthesis ◽  
Tem Analysis ◽  
Host Matrix ◽  
Transmission Electron ◽  
Wet Chemical ◽  
Beam Dosimetry

AbstractDy3+ doped β-Ca2P2O7 phosphor has been synthesized using wet chemical method. The scanning electron microscopy (SEM) and transmission electron microscopy (TEM) analysis confirmed the formation of β-Ca2P2O7:Dy nano-phosphors. However, photoluminescence (PL) study was carried out to confirm the presence of dopant ion in the host matrix of β-Ca2P2O7:Dy material. Thermoluminescence (TL) glow curves of β-Ca2P2O7 were recorded for different concentrations of Dy3+ after exposure to various fluences of C6+ ion beam (75 meV). TL sensitivity of β-Ca2P2O7:Dy3+ (0.1 mol%) phosphor was 3.79 times more than commercially available CaSO4:Dy3+. TRIM code based on the Monte Carlo simulation was used to calculate the absorbed doses, ion range and main energy loss. Glow curve de-convolution (GCD) method was used to determine the number of TL peaks and their trapping parameters. The wide linear response of β-Ca2P2O7 nanoparticles along with high stability of TL glow curve makes this nanomaterial a good candidate for C6+ ion beam dosimetry.

Preparation of Polyacrylonitrile/Graphene Oxide Nanocomposite-Derived Carbon Microstructures by Ion Beam Patterning and Post-Pyrolysis

2016 ◽  
Vol 8 (8) ◽  
pp. 1714-1718 ◽  
Author(s):  
Chang-Hee Jung ◽  
Jin-Mook Jung ◽  
In-Tae Hwang ◽  
Chan-Hee Jung ◽  
Jae-Hak Choi ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Ion Beam ◽  
Ion Beam Patterning

Combined AFM-SEM testing for mechanical property determination of graphene oxide paper

2012 ◽  
Vol 1407 ◽  
Author(s):  
Congwei Wang ◽  
Asa H. Barber
Keyword(s):  
Graphene Oxide ◽  
Ion Beam ◽  
Force Microscopy ◽  
Atomic Force ◽  
Focussed Ion Beam ◽  
Graphene Oxide Paper ◽  
Sample Width ◽  
Testing Condition ◽  
Vacuum Testing

ABSTRACTA novel technique combining both atomic force microscopy (AFM) and scanning electron microscopy (SEM) is used to test the mechanical properties of densely-packed graphene oxide (GO) paper. Individual beams of GO paper with variable widths were prepared using focussed ion beam (FIB) microscopy and tensile tested to failure using the AFM while observing with SEM. A variation in the tensile strength of the GO paper beams up to 64.8 MPa was recorded in the vacuum testing condition. An increase in breaking stress of GO paper with decreasing sample width was determined and proposed as being due to fewer defects present in GO beams of smaller width.

Miniaturized Supercapacitors: Focused Ion Beam Reduced Graphene Oxide Supercapacitors with Enhanced Performance Metrics

2015 ◽  
Vol 5 (19) ◽  
pp. 1500665 ◽  
Author(s):  
Derrek E. Lobo ◽  
Parama Chakraborty Banerjee ◽  
Christopher D. Easton ◽  
Mainak Majumder
Keyword(s):  
Graphene Oxide ◽  
Reduced Graphene Oxide ◽  
Focused Ion Beam ◽  
Performance Metrics ◽  
Ion Beam ◽  
Reduced Graphene
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