scholarly journals Introduction of “Guideline for radiation shielding evaluation of transport casks by Monte Carlo method” -the outline of guideline draft-

2014 ◽  
Vol 4 ◽  
pp. 143-146
Author(s):  
Mitsufumi Asami ◽  
Hiroaki Taniuchi ◽  
Tsutomu Matsumoto ◽  
Yukio Sakamoto ◽  
Hiroki Sakamoto
Keyword(s):  
Monte Carlo ◽  
Monte Carlo Method ◽  
Radiation Shielding

Primary Shielding Design and Analysis for CLEAR-I

2013 ◽  
Author(s):  
Qi Yang ◽  
Bin Li ◽  
Chao Chen ◽  
Minghuang Wang ◽  
Qin Zeng
Keyword(s):  
Monte Carlo ◽  
Monte Carlo Method ◽  
Research Reactor ◽  
Natural Circulation ◽  
Radiation Shielding ◽  
Lead Alloy ◽  
Reactor Plant ◽  
Calculation System ◽  
Shielding Design ◽  
Dual Models

The China Lead-Alloy Cooled Research Reactor (CLEAR-I) is critical/sub-critical dual-models natural circulation lead alloy cooled reactor. This study is to focus on the concern radiation shielding design and analysis for CLEAR-I. The modeling program MCAM and calculation system VisualBUS developed by FDS Team was used based on Monte Carlo method and other coupled methods. As indicated by the results, the dose rate in the reactor plant (outside the containing compartment above the reactor) was below 9 uSv/h during operation and less than 1 uSv/h during shutdown, meeting with the requirements of shielding.

Investigations of radiation shielding using Monte Carlo method and elastic properties of PbO-SiO2-B2O3-Na2O glasses

2018 ◽  
Vol 18 (6) ◽  
pp. 717-727 ◽  
Author(s):  
Shams A.M. Issa ◽  
Yasser B. Saddeek ◽  
H.O. Tekin ◽  
M.I. Sayyed ◽  
Khamies saber Shaaban
Keyword(s):  
Monte Carlo ◽  
Monte Carlo Method ◽  
Elastic Properties ◽  
Radiation Shielding

scholarly journals Radiation shielding parameters of some antioxidants using Monte Carlo method

2018 ◽  
Vol 44 (4) ◽  
pp. 579-590 ◽  
Author(s):  
Huseyin Ozan Tekin ◽  
Mesut Karahan ◽  
Turker Tekin Erguzel ◽  
Tugba Manici ◽  
Muhsin Konuk
Keyword(s):  
Monte Carlo ◽  
Monte Carlo Method ◽  
Radiation Shielding

scholarly journals SIMULATION OF PHOTON AND ELECTRON TRANSPORT BY MONTE CARLO METHOD

2010 ◽  
Vol 13 (2) ◽  
pp. 5-14
Author(s):  
Tan Thanh Nguyen ◽  
Phuong Nguyen Dang ◽  
Loan Thi Hong Truong
Keyword(s):  
Monte Carlo ◽  
Monte Carlo Method ◽  
Detection Efficiency ◽  
Radiation Transport ◽  
Radiation Detection ◽  
Dose Calculation ◽  
Radiation Shielding ◽  
Fast Calculation ◽  
Transport Simulation ◽  
Program Show

There are many radiation transport simulation codes using Monte Carlo method in the world nowaday. These codes have many applications such as: dose calculation, investigating radiation detection efficiency, designing radiation shielding, . . . However, these codes are too expensive or too difficult to be applied in many different specific purposes. In this work, we built a radiation transport simulation program based on Monte Carlo method using C++ programing language with the purpose of fast calculation and easy to use. The simulation results of this program show a good agreement in compared to MCNP results.

scholarly journals EFFICIENCY OF VARIOUS MATERIALS APPLICATION FOR RADIATION SHIELDING AT TRANSPORTATION AND STORAGE OF SPENT NUCLEAR FUEL BY DRY METHOD

2020 ◽  
pp. 64-70
Author(s):  
V.G. Rudychev ◽  
N.A. Azarenkov ◽  
I.O. Girka ◽  
Y.V. Rudychev
Keyword(s):  
Monte Carlo ◽  
Monte Carlo Method ◽  
Dose Rate ◽  
Nuclear Fuel ◽  
Spent Nuclear Fuel ◽  
Radiation Shielding ◽  
Γ Radiation ◽  
The Monte Carlo Method ◽  
Radiation Shields ◽  
And Storage

A model of the transport container intended for transportation of spent nuclear fuel (SFN) is studied. The passage of γ-quanta from the major long-lived isotopes is examined. The radiation shields made of iron, lead and depleted uranium, which are equivalent in mass to the thickness of iron of 15 to 35 cm is considered. The calculations are carried out using the Monte Carlo method (in MCNP and PHITS packages). The change in the characteristics of γ-radiation beyond the shields, made of different materials and with different thicknesses, is determined. For SNF from WWER-1000 with the thicknesses up to ~ 21 cm, the shield made of lead and uranium is shown to be more effective. If the thickness of the shield exceeds ~ 21 cm, then the shield made of iron is more effective. Increasing the thickness of the shields above 25 cm is shown to be inefficient, since the shields mass increases but the dose rate decreases slightly in this case.

scholarly journals Investigation of Nanoparticle Effect on Radiation Shielding Property Using Monte Carlo Method

2016 ◽  
Vol 12 (2) ◽  
Author(s):  
Hüseyin Ozan Tekin ◽  
Vishwanath P. Singh ◽  
Ümit Kara ◽  
Tuğba Manıcı ◽  
Elif Ebru Altınsoy
Keyword(s):  
Monte Carlo ◽  
Monte Carlo Method ◽  
Radiation Shielding ◽  
Nanoparticle Effect

Outbursts of comet Schwassmann-Wachmann 1, and the cloud of interplanetary boulders

1974 ◽  
Vol 22 ◽  
pp. 307 ◽  
Author(s):  
Zdenek Sekanina
Keyword(s):  
Monte Carlo ◽  
Monte Carlo Method ◽  
Interplanetary Space ◽  
Porous Matrix ◽  
Maximum Diameter ◽  
Expansion Velocity ◽  
Solid Constituent ◽  
Meteoric Material ◽  
Periodic Comet

AbstractIt is suggested that the outbursts of Periodic Comet Schwassmann-Wachmann 1 are triggered by impacts of interplanetary boulders on the surface of the comet’s nucleus. The existence of a cloud of such boulders in interplanetary space was predicted by Harwit (1967). We have used the hypothesis to calculate the characteristics of the outbursts – such as their mean rate, optically important dimensions of ejected debris, expansion velocity of the ejecta, maximum diameter of the expanding cloud before it fades out, and the magnitude of the accompanying orbital impulse – and found them reasonably consistent with observations, if the solid constituent of the comet is assumed in the form of a porous matrix of lowstrength meteoric material. A Monte Carlo method was applied to simulate the distributions of impacts, their directions and impact velocities.

Structures and crystallization of vacuum-deposited amorphous Se and Sb films

1990 ◽  
Vol 48 (4) ◽  
pp. 140-141
Author(s):  
Makoto Shiojiri ◽  
Toshiyuki Isshiki ◽  
Tetsuya Fudaba ◽  
Yoshihiro Hirota
Keyword(s):  
Monte Carlo ◽  
Electron Microscope ◽  
Monte Carlo Method ◽  
Computer Program ◽  
Radial Distribution ◽  
Film Formation ◽  
Amorphous State ◽  
Two Dimensional ◽  
Amorphous Films ◽  
Binding Condition

In hexagonal Se crystal each atom is covalently bound to two others to form an endless spiral chain, and in Sb crystal each atom to three others to form an extended puckered sheet. Such chains and sheets may be regarded as one- and two- dimensional molecules, respectively. In this paper we investigate the structures in amorphous state of these elements and the crystallization.HRTEM and ED images of vacuum-deposited amorphous Se and Sb films were taken with a JEM-200CX electron microscope (Cs=1.2 mm). The structure models of amorphous films were constructed on a computer by Monte Carlo method. Generated atoms were subsequently deposited on a space of 2 nm×2 nm as they fulfiled the binding condition, to form a film 5 nm thick (Fig. 1a-1c). An improvement on a previous computer program has been made as to realize the actual film formation. Radial distribution fuction (RDF) curves, ED intensities and HRTEM images for the constructed structure models were calculated, and compared with the observed ones.

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