Results 121 to 130 of about 1,440 (170)
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A feasibility study of the Tehran research reactor as a neutron source for BNCT
Applied Radiation and Isotopes, 2014Investigation on the use of the Tehran Research Reactor (TRR) as a neutron source for Boron Neutron Capture Therapy (BNCT) has been performed by calculating and measuring energy spectrum and the spatial distribution of neutrons in all external irradiation facilities, including six beam tubes, thermal column, and the medical room.
Hossein Khalafi +2 more
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BNCT project at Tehran Research Reactor: Current and prospective plans
Progress in Nuclear Energy, 2016Abstract Boron Neutron Capture Therapy (BNCT) for brain tumor treatment is under development at the Tehran Research Reactor (TRR). This paper presents all current research activities that were performed during recent years as well as the prospective of BNCT research at TRR. The theoretical and experimental investigations show that TRR has a very good
Hossein Khalafi, Yaser Kasesaz
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A multi-moderator neutron spectrometer for use in BNCT studies of the Tehran research reactor
Applied Radiation and Isotopes, 2021The Tehran Research Reactor is the only appropriate and available neutron source in Iran for clinical boron neutron capture therapy (BNCT). One of the requirements for BNCT is to carefully evaluate and measure the therapeutic neutron beam (epithermal neutrons) as well as the fast and thermal neutron components for successful treatment. In this research,
Faezeh Rahmani +2 more
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Cold neutron source conceptual designing for Tehran Research Reactor
Annals of Nuclear Energy, 2016Abstract A cold neutron source (CNS) conceptual designing for the Tehran Research Reactor (TRR) were carried out using MCNPX code. In this study, a horizontal beam tube of the core which has appropriate the highest thermal flux is selected and parametric analysis to choose the type and geometry of the moderator, and the required CNS dimensions for ...
Farshad Faghihi, S M Mirvakili
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Gamma and neutron dosimetry of Tehran Research Reactor containment during and after LOCA accident
Applied Radiation and Isotopes, 2019The radiation effects of loss of coolant accident on the reactor operators are critical issues. In the present study, computational codes were used to investigate gamma and neutron dose rates inside the 5 MW pool-type Tehran Research Reactor containment.
Z, Gholamzadeh, E, Bavarnegin
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Calculation and Measurement of Kinetics Parameters of Tehran Research Reactor
Volume 5: Fuel Cycle and High and Low Level Waste Management and Decommissioning; Computational Fluid Dynamics (CFD), Neutronics Methods and Coupled Codes; Instrumentation and Control, 2009Effective delayed neutron fraction βeff and neutron generation time Λ are important factors in reactor physics calculation and transient analysis. In first stage of this research, these kinetics parameters have been calculated for two states of Tehran research reactor (TRR), i.e.
Seyed Abolfazl Hosseini +3 more
+4 more sources
Neutronic analysis for Tehran Research Reactor mixed-core
Progress in Nuclear Energy, 2012In this research, neutronic calculation of current low enriched uranium control fuel elements replacement with high enriched uranium control fuel elements in the reference core of Tehran Research Reactor (TRR) has been investigated and the results of calculations are compared with the TRR neutronic safety criteria.
Ahmad Lashkari +3 more
openaire +2 more sources
Production and modeling of radioactive gold nanoparticles in Tehran research reactor
Applied Radiation and Isotopes, 2016Gold has two medically useful radioactive isotopes, 198Au and 199Au, for locally irradiating and killing tumor cells. 198Au radionuclide has been produced through the irradiation of the pure gold via 197Au(n,γ)198Au reaction in the Tehran Research Reactor at a thermal neutron flux of 4.5×1013ncm-2s-1 for the different irradiation times.
Seyedeh Fatemeh, Hosseini +3 more
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Study on secondary shutdown systems in Tehran research reactor
Nuclear Engineering and Design, 2015Abstract One important safety aspect of any research reactor is the ability to shut down the reactor. Usually, research reactors, currently in operation, have a single shutdown system based on the simultaneous insertion of the all control rods into the reactor core through gravity.
H.R. Jalali, A.H. Fadaei, M. Gharib
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Neutronic Analysis for Tehran Research Reactor Upgrading
10th International Conference on Nuclear Engineering, Volume 4, 2002This paper presents preliminary results of a study undertaken to investigate the possibility of raising the power of Tehran Research Reactor (TRR) from 5 to 10 MW (th), keeping the same core configuration and with minimum changes in the primary cooling circuit. The main aim of TRR upgrade is to increase the volume of radioisotope production.
Ebrahim Afshar, Alireza Shahidi
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