A peer-reviewed journal published by K. N. Toosi University of Technology

Two-dimensional simulation of argon dielectric barrier discharge (DBD) plasma actuator with COMSOL Multiphysics

Ramin Mehrabifard

Volume 4, Issue 4 , October 2023, , Pages 43-50

https://doi.org/10.22034/rpe.2023.392080.1127

Abstract
  Dielectric barrier discharge (DBD) plasma is used for various applications. DBD is also one of the most efficient and low-cost methods for active fluid flow control. In this study, a detailed physical model of DBD in atmospheric pressure at 1 kV DC voltage is developed with COMSOL Multiphysics software. ...  Read More

Investigation of under-containment gamma dose after total core uncovering accident in Tehran Research Reactor

Ehsan Boustani; Mostafa Hassanzadeh; Rohollah Ahangari

Volume 2, Issue 4 , December 2021, , Pages 47-56

https://doi.org/10.22034/rpe.2022.321947.1048

Abstract
  The occurrence of core uncovering following a loss of coolant accident is conceivable and should be taken into account for its significant possible consequences. Source terms are calculated using ORIGEN 2.1 code, and the gamma dose of the uncovered core is calculated for three different normal and anticipated ...  Read More

The new design of heavy concrete as neutron and gamma shield using galena, B4C, and nanomaterials

Reza Pourimani; Saeed Ghahani; Parisa Nobakht; Iman Mirzae Moghadam

Volume 5, Issue 1 , January 2024, , Pages 49-55

https://doi.org/10.22034/rpe.2023.397144.1136

Abstract
  Today, with the development of nuclear technology and radiation therapy equipment, radiation protection is important. This study aimed to design heavy concrete with high compressive strength and effective protection against neutron and gamma rays. In this study, 11 types of concrete with different mixing ...  Read More

Experimental study on the performance of a THGEM detector for X-rays

Elham Edalatkhah; Shahab Sheibani

Volume 4, Issue 4 , October 2023, , Pages 51-55

https://doi.org/10.22034/rpe.2023.400414.1141

Abstract
  By expanding the applications of GEM detectors, a newer pattern of such detectors was introduced in 2004, named THGEM detectors. In this work, a sample of an X-ray detector was designed and constructed using 2cm×2cm THGEMs domestically produced with a thickness of 250 μm, a hole diameter of ...  Read More

‎Development of SUAP toolkit for performing uncertainty quantification and sensitivity analysis in fuel performance ‎m‎odeling‎

Hamed Khodadadi; Kamyar Sabetghadam

Volume 4, Issue 1 , January 2023, , Pages 53-60

https://doi.org/10.22034/rpe.2022.348646.1093

Abstract
  Probabilistic uncertainty and sensitivity analysis is frequently recommended for safety and reliability assessment of computer simulations. For this purpose, SUAP has been developed, and its latest version is capable of working on analysis results obtained using five well-known nuclear codes (i.e. FRAPCON, ...  Read More

The effects of avalanche role on the neutron-less nuclear plasma fusion gain enhancement

Roohalah Mirzaeian; Seyede Nasrin HoseiniMotlagh; Mahboobeh Shaghaghian

Volume 4, Issue 3 , June 2023, , Pages 53-64

https://doi.org/10.22034/rpe.2023.386226.1118

Abstract
  In recent years, various designs for controlled thermonuclear fusion based on the p11B reaction have been reviewed and optimized. In this article, to innovate in achieving a better power and energy gain of neutron-free p11B fusion reaction, the improvement of the cross-section and also the kinetic effects. ...  Read More

Investigating the effect of deuterium ignitor beam energy distribution function on the ignition of D/He-‎3 ‎fuel pellet

Saba Khatami; Mohammad Mahdavi; Sohail Khoshbinfar

Volume 4, Issue 4 , October 2023, , Pages 57-63

https://doi.org/10.22034/rpe.2023.397099.1137

Abstract
  In this research, the effect of deuterium beam energy distribution function resulting from TNSA and RPA mechanisms on the fast ignition of D/He-3 fuel pellet has been investigated. The fuel is irradiated with a deuterium beam through a conical guide. The energy distribution function will be different ...  Read More

Experimental study on Fricke gelatin gel dosimeters

Farshid Pourranjbar; Elham Edalatkhah; Seyed Mohammad Mahdi Abtahi

Volume 5, Issue 1 , January 2024, , Pages 57-61

https://doi.org/10.22034/rpe.2023.406693.1151

Abstract
  ‎Fricke gel dosimeters obtained by modifications on standard Fricke dosimeter presents some advantages like easy preparation‎, ‎tissue equivalence‎, ‎good reproducibility and dose mapping‎. ‎In this work‎, ‎dose response characteristics of Gelatin Fricke gel dosimeters ...  Read More

Radiological assessment of different varieties of pistachios produced in Iran

Reza Pourimani; Monire Mohebian; Mobina Abdi

Volume 4, Issue 1 , January 2023, , Pages 61-67

https://doi.org/10.22034/rpe.2022.352565.1096

Abstract
  Nuclear radiations are harmful to the human body. The main sources of nuclear radiation are the decay chains of U-238, U-235, and Th-232 and also some radionuclides as K-40, which are present in small amounts in the materials of the earth's crust, including plants, rocks, soil and water. Radioactive ...  Read More

Analysis of the control rod withdrawal speed impact on the transient behavior of Bushehr-1 NPP using Simulink software

Morteza Akbari; Farrokh Khoshahval

Volume 5, Issue 1 , January 2024, , Pages 63-74

https://doi.org/10.22034/rpe.2023.405891.1147

Abstract
  In this research, the governing dynamic equations of the Bushehr NPP core are studied and modeled using Matlab (Simulink) software. The point kinetic equation with the temperature feedbacks and the fuel-coolant energy balance equations in the time domain were used for this purpose. The model is validated ...  Read More

Secondary particle dose assessment during the proton therapy of liver cancer: A Monte Carlo study

Leyli Mogheiseh; Ali Asghar Mowlavi; Sayyed Bijan Jia; Reza Shamsabadi

Volume 4, Issue 3 , June 2023, , Pages 65-72

https://doi.org/10.22034/rpe.2023.391186.1126

Abstract
  Proton therapy of liver tumors can be challenging due to the absorbed dose of produced secondary particles in non-target organs. This study aims to evaluate the absorbed dose of secondary particles during the proton therapy of liver cancer through the MCNPX Monte Carlo (MC) code by a simplified MIRD-UF ...  Read More

Stability of PVA Fricke gel as a radiochromic indicator for blood irradiation

Elham Edalatkhah; Mahsa Sedighi; Payvand Taherparvar

Volume 5, Issue 1 , January 2024, , Pages 75-80

https://doi.org/10.22034/rpe.2023.413414.1157

Abstract
  Gamma radiation indicators are appropriate tools for monitoring visually whether or not the irradiation process has been carried out properly. Among chemical radiation indicators available worldwide, a few are suitable for monitoring low dose ranges (especially for blood irradiation, below 50 Gy). Addressing ...  Read More

Measurement of Radiation and Radioactivity
Study on Tablet conversion by pressure-less sintering method on the thermoluminescent dosimetric response of Beta Tricalcium Phosphate

Hora Kavarian; Armin Mosayebi; Hamideh Daneshvar

Articles in Press, Accepted Manuscript, Available Online from 09 October 2023

https://doi.org/10.22034/rpe.2023.415772.1161

Abstract
  In this research work, commercial beta-tricalcium phosphate powder is converted into tablets by pressure-less sintering method. Thermoluminescence responses of tablet and powder samples in the dose range of 20 to 1500 Gy have been compared and effective factors in tablet conversion such as mass in the ...  Read More

Nuclear Reactor science and Technology
Study of safety parameters of a PWR reactor using Cu nanofluids by molecular dynamics method

Ali Zahian; Mahdi Aghaie

Articles in Press, Accepted Manuscript, Available Online from 20 October 2023

https://doi.org/10.22034/rpe.2023.405799.1146

Abstract
  In this analysis, nanofluid properties are evaluated by interaction correlations between particles using molecular dynamics (MD) method, and thermal-hydraulics characteristics of nanofluids in a WWER-1000 reactor is investigated by Computational Fluid Dynamics (CFD). This study conceptualizes power increase ...  Read More

Nuclear Reactor science and Technology
Experimental study of the cobalt oxide etching rate from metal surface using F2/He atmospheric pressure plasma for decontamination of nuclear components

Mohammad Askari; Nikoo Darestani Farahani; Mehdi Bakhshzad Mahmoudi; Fereydoun Abbasi Davani

Articles in Press, Accepted Manuscript, Available Online from 06 December 2023

https://doi.org/10.22034/rpe.2023.418141.1163

Abstract
  Metal surface cleaning or etching techniques using reactive plasma are emerging as one of the dry processing techniques for surface contaminants with high bond energy, especially for cleaning and decontamination of nuclear components and equipment. In this study, the plasma reaction due to the discharge ...  Read More

Monte Carlo Method
Evaluation of direct and indirect DNA Damage under the Photon Irradiation in the Presence of Gold, Gadolinium, and Silver Nanoparticles Using Geant4-DNA

Ali Azizi Ganjgah; Payvand Taherparvar

Articles in Press, Accepted Manuscript, Available Online from 15 February 2024

https://doi.org/10.22034/rpe.2024.425521.1170

Abstract
  Radiation therapy aims to maximize doses to cancer cells while minimizing damage to normal tissues. Today, nanoparticles containing high-atomic-number elements, such as gold, gadolinium, and silver, have proven effective as radiosensitizers in radiotherapy to enhance dose delivery for cancer treatment. ...  Read More

Measurement of Radiation and Radioactivity
‎Assessment of shielding performance of nitrile butadiene rubber through simulation and experiments at MNSR beam line

Zohreh Gholamzadeh; Reza Ebrahimzadeh; Mohammad Hossein Choopan Dastjerdi; Javad Mokhtari

Articles in Press, Accepted Manuscript, Available Online from 17 February 2024

https://doi.org/10.22034/rpe.2024.420403.1167

Abstract
  New nitrile butadiene rubber (NBR) materials are being considered to use for neutron shielding especially for the positions which needs a flexible neutron shield. Such light, low-cost, and suitable material could be used for sealing of the gaps or even for shielding of low radiation environments. In ...  Read More

Particle Accelerators, Ion sources
A numerical analysis of the impact of gas pressure and dielectric material on the generation of body force in an air gas plasma actuator

Sajad Hajikhani; Ramin Mehrabifard; Hamed Soltani Ahmadi

Articles in Press, Accepted Manuscript, Available Online from 22 February 2024

https://doi.org/10.22034/rpe.2024.429773.1176

Abstract
  Plasma technology has undeniably revolutionized industrial processes in recent decades. Atmospheric pressure plasma (APP) has emerged as a prominent and widely applicable tool in various scientific disciplines. Notably, plasma-assisted flow control has become a subject of intense interest, particularly ...  Read More

Radiation Applications
A comprehensive approach for calculation of surface area and volume in radiation transport codes

Hamed Kargaran

Articles in Press, Accepted Manuscript, Available Online from 13 March 2024

https://doi.org/10.22034/rpe.2024.418185.1164

Abstract
  The estimation of flux in radiation transport Monte Carlo problems needs to calculate the volumes and surface areas of the geometric regions. The particle flux is often estimated as the track length per unit volume or the number of particles crossing a surface per unit area in Monte Carlo transport problems. ...  Read More

Measurement of Radiation and Radioactivity
Comparison audit program for selected radiotherapy centers by secondary standard dosimetry laboratory (SSDL) using thermoluminescence dosimeter

Nahid Hajiloo; Mostafa Mohammadi; Omid N. Ghodsi; Hamideh Daneshvar; Soheil Moghtader

Articles in Press, Accepted Manuscript, Available Online from 15 March 2024

https://doi.org/10.22034/rpe.2024.433512.1178

Abstract
  The International Atomic Energy Agency (IAEA), sends dosimeters annually to Secondary Standard Dosimetry Laboratories (SSDL) around the world, to calibrate their radiation field. Therefore, they mainly send thermo-luminescent dosimeters as transfer dosimeters to the SSDL laboratories, to be irradiated ...  Read More

Experimental and Theoretical Nuclear Physics
Exploring the applications of low energy ion accelerators through exothermic nuclear reaction products

Zeinab Sadat Imani; Omidreza Kakuee; Yavar Taghipour Azar; Amir Abbas Sabouri Dodaran

Articles in Press, Accepted Manuscript, Available Online from 27 March 2024

https://doi.org/10.22034/rpe.2024.437355.1181

Abstract
  The production of light, energetic and low-flux ions as a secondary beam caused by nuclear reaction can be used in various branches of nuclear physics. Due to the limited availability of energy in small laboratories equipped with electrostatic accelerators, accessing energetic light particles is crucial. ...  Read More