Nuclear Science and Techniques

NUCLEAR ELECTRONICS AND INSTRUMENTATION

Investigation of enhancement in planar fast neutron detector efficiency with stacked structure using Geant4

Geant4 based Monte Carlo study has been carried out to assess the improvement in efficiency of the planar structure of Silicon Carbide (SiC)-based semiconductor fast neutron detector with the stacked ...

S. Tripathi · C. Upadhyay · C.P. Nagaraj · K. Devan · A. Venkatesan ·

2017, 28 (11): 154

NUCLEAR ENERGY SCIENCE AND ENGINEERING

Energy calibration of laterally segmented electromagnetic calorimeters based on neutral pion detection

This paper describes a method for energy calibration of laterally segmented electromagnetic calorimeters based on the detection of two-photon decays of π0 mesons. The calibration procedure per...

Malek Mazouz

2017, 28 (11): 155

NUCLEAR CHEMISTRY,RADIOCHEMISTRY,RADIOPHARMACEUTICALS AND NUCLEAR MEDICINE

Radiation grafting of poly(vinyl acetate) onto wheat straw and properties of the product

Poly(vinyl acetate) (PVAc) was grafted onto wheat straw by γ-irradiation to improve the compatibility between wheat straw and high-density polyethelene (PE). The grafting was proved by Fourier t...

Ping Qu, Guo-Feng Wu, Jing-Xia Wu, Yong-Fu Zhao

2017, 28 (11): 156

NUCLEAR CHEMISTRY,RADIOCHEMISTRY,RADIOPHARMACEUTICALS AND NUCLEAR MEDICINE

Determination of gamma-ray parameters for polyethylene glycol of different molecular weights

Mass attenuation coefficient (μm) for polyethylene glycol (PEG) of different molecular weights was determined by using NaI (Tl) scintillator and WinXcom mixture rule at gamma energies of 59.5, 302....

Ibrahim F. Al-Hamarneh, Mohammad W. Marashdeh, Fahad I. Almasoud, Ahmad Alkaoud

2017, 28 (11): 157

NUCLEAR ENERGY SCIENCE AND ENGINEERING

Neutronics physics analysis of a large fluoride-salt-cooled solidfuel fast reactor with Th-based fuel

Fast reactors based on thorium fuel have enhanced inherent safety. Fluoride salt performs well as a coolant in high-temperature nuclear systems. In this paper, we present a reference core for a large ...

Yu Peng, Gui-Feng Zhu, Yang Zou, Si-Jia Liu, Hong-Jie Xu

2017, 28 (11): 158

SYNCHROTRON RADIATION TECHNOLOGY AND APPLICATIONS

FEA-based structural optimization design of a side cooling collimating mirror at SSRF

Based on finite element analysis of thermal mechanical behavior, structural optimization design was proposed for a side cooling collimating mirror subjected to high heat load for a beamline at SSRF (S...

Li-Min Jin, Na-Xiu Wang, Wan-Qian Zhu, Feng-Gang Bian, Zhong-Min Xu

2017, 28 (11): 159

LOW ENERGY ACCELERATOR, RAY AND APPLICATIONS

Design and calculation of a side-coupled accelerating structure

In this paper, we present the design and optimization of a side-coupled accelerating structure with an energy switch. The beam parameters are optimized, and the electric field asymmetry in the first c...

Ming-Xuan Liu, Cong-Feng Wu, Yun-Gai Tang, Gui-Rong Huang

2017, 28 (11): 160

SYNCHROTRON RADIATION TECHNOLOGY AND APPLICATIONS

Injector of the Turkish light source facility TURKAY

A synchrotron radiation source called TURKAY is proposed as a sub-project of the Turkish Accelerator Center Project. The storage ring of TURKAY is a low emittance synchrotron and the radiation ranges ...

Zafer Nergiz, Avni Aksoy

2017, 28 (11): 161

NUCLEAR ENERGY SCIENCE AND ENGINEERING

Displacement damage cross section and mechanical properties calculation of an Es-Salam research reactor aluminum vessel

Nuclear facility aging is one of the biggest problems encountered in nuclear engineering. Radiation damage is among one of the aging causes. This kind of damage is an important factor of mechanical pr...

Djillali Saad, Hocine Benkharfia, Mahmoud Izerrouken, Ahmed Ali Benyahia, Hamid Ait-Abderrahim

2017, 28 (11): 162

NUCLEAR PHYSICS AND INTERDISCIPLINARY RESEARCH

Investigating microstructure of Longmaxi shale in Shizhu area, Sichuan Basin, by optical microscopy, scanning electron microscopy and micro-computed tomography

Microstructure of shale formation is the key to understanding its petrophysical and chemical properties. Optical microscopy, scanning electron microscopy and micro-computed tomography (μ-CT) have b...

Yu Wang, Li-Hua Wang, Jian-Qiang Wang, Zheng Jiang, Chan Jin, Yan-Fei Wang

2017, 28 (11): 163

NUCLEAR ELECTRONICS AND INSTRUMENTATION

Uncertainty of an automatic system for counting alpha tracks on CR-39

For accurate counting of alpha tracks on the polyallyl diglycol carbonate of CR-39-type track detectors, the size distributions of both artifact tracks and alpha tracks were investigated with an autom...

Dun-Huang Fan, Wei-Hai Zhuo, Bo Chen, Wei-Yuan Zhang

2017, 28 (11): 164

NUCLEAR PHYSICS AND INTERDISCIPLINARY RESEARCH

Theoretical determination of (d, n) and (d, 2n) excitation functions of some structural fusion materials irradiated by deuterons

Nuclear fusion is one of the world’s primary energy sources. Studies on the structural fusion materials are very important in terms of the development of fusion technology. Chromium, nickel, zin...

Mustafa Yi?it, Eyyup Tel

2017, 28 (11): 165

NUCLEAR ENERGY SCIENCE AND ENGINEERING

On-the-fly Doppler broadening method based on optimal doubleexponential formula

As temperature changes constantly in nuclear reactor operation, on-the-fly Doppler broadening methods are commonly adopted for generating nuclear cross sections at various temperatures in neutron tran...

Rui Chen, Li-Juan Hao, Bin Wu, Jing Song, Li-Qin Hu

2017, 28 (11): 166

LOW ENERGY ACCELERATOR, RAY AND APPLICATIONS

Quantification of the impact of TOF and PSF on PET images using the noise-matching concept: clinical and phantom study

This study was to assess quantitatively the accuracy of 18F-FDG PET/CT images reconstructed by TOF + PSF and TOF only, considering the noise-matching concept to minimize probable bias in evaluating al...

M. Shekari, P. Ghafarian, S. Ahangari, M. R. Ay

2017, 28 (11): 167

NUCLEAR CHEMISTRY,RADIOCHEMISTRY,RADIOPHARMACEUTICALS AND NUCLEAR MEDICINE

Determination of sedimentation rates in Izmir Bay using 210Pb radionuclide

In this study, using the constant rate of supply model, sedimentation rates of Izmir Bay were calculated and discussed. For this purpose, eight sediment cores were collected from inner part of the bay...

Mutlu İçhedef, Güngör Yener, Hasan Baha Büyükışık, Ebru Yeşim Özkan

2017, 28 (11): 168

LOW ENERGY ACCELERATOR, RAY AND APPLICATIONS

A high performance gas–liquid two-phase flow meter based on gamma-ray attenuation and scattering

The ability to precisely estimate the void fraction of multiphase flow in a pipe is very important in the petroleum industry. In this paper, an approach based on our previous works is proposed for pre...

G. H. Roshani, E. Nazemi

2017, 28 (11): 169

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