scholarly journals Investigation of 99Mo potential production via UO2SO4 liquid target irradiation in a 5 MW nuclear research reactor

Nukleonika ◽  
2017 ◽  
Vol 62 (1) ◽  
pp. 37-45 ◽  
Author(s):  
Zohreh Gholamzadeh ◽  
Seyed Mohammad Mirvakili ◽  
Amin Davari ◽  
Mosoumeh Alizadeh ◽  
Atieh Joz-Vaziri
Keyword(s):  
Research Reactor ◽  
Geometry Optimization ◽  
Nuclear Research ◽  
Computational Results ◽  
Temperature Peak ◽  
Potential Production ◽  
Research Reactors ◽  
Liquid Samples ◽  
Hydraulic Conditions ◽  
Nuclear Research Reactor

Abstract The activation method for 99Mo production in comparison to fissionable target irradiation in research reactors is less preferable. Therefore, 99Mo yield using UO2SO4 samples was theoretically investigated. Computational results revealed admirable potential of the liquid samples for 99Mo production. Low-concentrated uranyl sulphate samples could easily be handled by the irradiation box. The sample geometry optimization improves thermal hydraulic conditions and production yield. The optimized geometry including only 0.12 g 235U produced 57Ci99Mo at end-of-irradiation (EOI) with a temperature peak of 72°C during the irradiation.

scholarly journals Potential Production of Theranostic Boron Nitride Nanotubes (64Cu-BNNTs) Radiolabeled by Neutron Capture

Nanomaterials ◽  
2021 ◽  
Vol 11 (11) ◽  
pp. 2907
Author(s):  
Wellington Marcos Silva ◽  
Helio Ribeiro ◽  
Jose Jaime Taha-Tijerina
Keyword(s):  
Boron Nitride ◽  
Neutron Capture ◽  
Research Reactor ◽  
Photon Emission ◽  
Nuclear Research ◽  
Boron Nitride Nanotubes ◽  
Cancer Treatments ◽  
Potential Production ◽  
Chloride Dihydrate ◽  
Nuclear Research Reactor

In this work, the radioisotope 64Cu was obtained from copper (II) chloride dihydrate in a nuclear research reactor by neutron capture, (63Cu(n,γ)64Cu), and incorporated into boron nitride nanotubes (BNNTs) using a solvothermal process. The produced 64Cu-BNNTs were analyzed by TEM, MEV, FTIR, XDR, XPS and gamma spectrometry, with which it was possible to observe the formation of64Cu nanoparticles, with sizes of up to 16 nm, distributed through nanotubes. The synthesized of 64Cu nanostructures showed a pure photoemission peak of 511 keV, which is characteristic of gamma radiation. This type of emission is desirable for Photon Emission Tomography (PET scan) image acquisition, as well as its use in several cancer treatments. Thus, 64Cu-BNNTs present an excellent alternative as theranostic nanomaterials that can be used in diagnosis and therapy by different techniques used in nuclear medicine.

Numerical Simulation of Siphon Breaker Systems for Open-Type Research Reactors

2020 ◽  
Vol 6 (2) ◽  
Author(s):  
Damian E. Ramajo ◽  
Santiago F. Corzo ◽  
Norberto M. Nigro
Keyword(s):  
Fluid Dynamics ◽  
Research Reactor ◽  
Water System ◽  
Nuclear Research ◽  
Main Line ◽  
Research Reactors ◽  
Open Type ◽  
Pressure Fields ◽  
Nuclear Research Reactor ◽  
Computational Fluid Dynamics Cfd

Abstract The Pohang University of Science and Technology facility (POSTECH) experiments to mimic the siphon breaker system (SBS) of an open-type nuclear research reactor were simulated by computational fluid dynamics (CFD). Two siphon breaker lines (SBL) and one siphon breaker hole (SBH) designs were solved with the open field operation and manipulation code (openfoam). The air–water system was solved using the volume of fluid (VOF) method, and the turbulence was modeled by means of the standard k–ϵ model. The pool drainage by siphonage was captured and the siphon break phenomena due to the entrance of air through the SBS were captured. The velocity and pressure fields in the main line were analyzed in depth. The pool undershooting height (hun) as well as the flow rate through the main line were quite well estimated without the need of introduce any fitting parameter in the computational model.

Design and implementation progress of multi-purpose simulator for nuclear research reactor using LabVIEW

Kerntechnik ◽  
2015 ◽  
Vol 80 (5) ◽  
pp. 454-464 ◽  
Author(s):  
A. Arafa ◽  
H. I. Saleh ◽  
N. Ashoub
Keyword(s):  
Research Reactor ◽  
Nuclear Research ◽  
Design And Implementation ◽  
Nuclear Research Reactor ◽  
Implementation Progress

Heuristic cues as perceptual filters: Factors influencing public support for nuclear research reactor in Singapore

Energy Policy ◽  
2021 ◽  
Vol 150 ◽  
pp. 112111
Author(s):  
Shirley S. Ho ◽  
Rui Xiong ◽  
Agnes S.F. Chuah
Keyword(s):  
Research Reactor ◽  
Public Support ◽  
Nuclear Research ◽  
Factors Influencing ◽  
Nuclear Research Reactor

scholarly journals MCNP model of L-54M nuclear research reactor: validation by preliminary graphite radiological characterization

2019 ◽  
Vol 322 (3) ◽  
pp. 1341-1350
Author(s):  
Eros Mossini ◽  
Luca Codispoti ◽  
Giorgio Parma ◽  
Filippo Maria Rossi ◽  
Elena Macerata ◽  
...  
Keyword(s):  
Research Reactor ◽  
Nuclear Research ◽  
Nuclear Research Reactor ◽  
Radiological Characterization

NCTPlan application for neutron capture therapy dosimetric planning at MEPhI nuclear research reactor

2011 ◽  
Vol 69 (12) ◽  
pp. 1888-1891 ◽  
Author(s):  
A.S. Elyutina ◽  
W.S. Kiger ◽  
А.А. Portnov
Keyword(s):  
Neutron Capture ◽  
Research Reactor ◽  
Nuclear Research ◽  
Neutron Capture Therapy ◽  
Nuclear Research Reactor

DESIGN OF A SLIDING MODE NEUROCONTROLLER FOR A NUCLEAR RESEARCH REACTOR

2007 ◽  
Vol 40 (5) ◽  
pp. 171-176 ◽  
Author(s):  
J. Humberto Pérez-Cruz ◽  
Alexander Poznyak
Keyword(s):  
Research Reactor ◽  
Sliding Mode ◽  
Nuclear Research ◽  
Nuclear Research Reactor

Assessment of derived emission limits for radioactive effluents resulted from the decommissioning activities of the VVR-S nuclear research reactor

2015 ◽  
Vol 148 ◽  
pp. 130-136 ◽  
Author(s):  
C. Tuca ◽  
A. Stochioiu ◽  
M. Sahagia ◽  
D. Gurau ◽  
M. Dragusin
Keyword(s):  
Research Reactor ◽  
Nuclear Research ◽  
Nuclear Research Reactor ◽  
Emission Limits

State of the Art of Nuclear Reactor Instrument Automation

1974 ◽  
Vol 96 (4) ◽  
pp. 394-398
Author(s):  
M. Taeschner ◽  
R. Gariod
Keyword(s):  
High Performance ◽  
Nuclear Reactor ◽  
Research Reactor ◽  
State Of The Art ◽  
Nuclear Research ◽  
Automation System ◽  
Nuclear Research Reactor ◽  
High Investment

Due to its complexity, nuclear reactor instrument automation is a challenge to engineers. High investment and running costs of a nuclear research reactor imply the use of advanced equipment and concepts for instrument automation when striving for high performance, reliability, and operational convenience under budgetary pressure. The article describes a successfully operating instrument automation system stressing the important underlying concepts trying to avoid too much details on specific hardware which is dependent on the time when one must order things.

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