Using electron beam irradiation to modify the electrical conductivity of graphene films based on defect engineering

Abstract A bibliometric approach allowed us to study the global research trend on impact of ionizing irradiations polymers from 1975 2019. The investigation revealed 1,015 publications with growing interest since 1990. is split into three main categories: polymer science, nuclear science technology, and chemistry physical. studied in this are gamma, electron beam, X-ray irradiations. under gamm...

Ion beam plays a pivotal role in ion implantations and the fabrication of nanostructures. However, there lacks quantitative model to describe residual stresses associated with ion-beam radiation. Radiation-induced stress/transformation strain have been mostly recognized hydrostatic sub space. Here, we use molecular dynamics (MD) simulations show that response material irradiation is generally a...

Piezoelectric PVDF polymer thin films are nanostructured by swift heavy ion beam resulting in nanoporous structures. The nanocylindars then partially filled with Ni(0) order to create a composite of higher dielectric permittivity. In second step, the is irradiated electron beam, induce chain scissions matrix and render it more flexible. It found that e-beam irradiation does not affect remanent ...

A novel three-dimensional unicursal irradiation technique "Dynamic WaveArc" (DWA), which employs simultaneous and continuous gantry and O-ring rotation during dose delivery, has been implemented in Vero4DRT. The purposes of this study were to develop a commissioning and quality assurance procedure for DWA irradiation, and to assess the accuracy of the mechanical motion and dosimetric control of...

Introduction BNCT is an effective method to destroy brain tumoral cells while sparing the healthy tissues. The recommended flux for epithermal neutrons is 109 n/cm2s, which has the most effectiveness on deep-seated tumors. In this paper, it is indicated that using D-T neutron source and optimizing of Beam Shaping Assembly (BSA) leads to treating brain tumors in a reasonable time where all IAEA ...

OBJECTIVE The aim of this study is to evaluate the effectiveness of Nd:YAP laser to seal dentinal tubules at different parameters. MATERIAL AND METHODS 24 caries-free human wisdom impacted molars were used. The crowns were sectioned transversally in order to totally expose the dentin. The smear layer was removed by a 1 min application of EDTA. Each surface was divided into four quadrants, but...

As-may have been mentioned by previous speaker?,'the basic process of food irradiation does not differ in the physical sense from any other food processing techniques which involve the application of radiation energy to food. Thus ordinary or microwave cooking uses longer wavelength radiation while food irradiation employs the shorter wavelength of gamma irradiation produced by Co or Cs or by e...

Due to its effectiveness in monitoring highly tumourconformed charged hadron therapy, in-beam positron emission tomography (in-beam PET [1]) is strongly desirable at charged hadron facilities under construction [2] or planning [3]. We present, therefore, optimized arrangements of the γ-ray detectors for next-generation in-beam PET scanners. A versatile, fully 3D, maximum likelihood expectation ...