Changes of the Neutron Flux of the Nuclear Reactor Triga Mark III Since the Conversion from High to Low 235U Enrichment

Authors

  • C. Vázquez-López Department of Physics, Center for Research and Advanced Studies of the National Polytechnic Institute, 2508 IPN Avenue, 07360. Zacatenco, Mexico City, Mexico https://orcid.org/0000-0003-2416-6796
  • O. Del Ángel-Gómez Department of Physics, Center for Research and Advanced Studies of the National Polytechnic Institute, 2508 IPN Avenue, 07360. Zacatenco, Mexico City, Mexico
  • R. Raya-Arredondo National Institute for Nuclear Research (ININ) Departament of Reactor, Highway México-Toluca, Km. 36.5, La Marquesa Ocoyoacac, 52750, Mexico
  • S. Cruz-Galindo National Institute for Nuclear Research (ININ) Departament of Reactor, Highway México-Toluca, Km. 36.5, La Marquesa Ocoyoacac, 52750, Mexico
  • J. I. Golzarri-Moreno Institute of Physics, National Autonomous University of Mexico (UNAM), 04520 Mexico City, Mexico
  • G. Espinosa Institute of Physics, National Autonomous University of Mexico (UNAM), 04520 Mexico City, Mexico

DOI:

https://doi.org/10.15415/jnp.2021.82019

Keywords:

Triga Mark III, Nuclear tracks, CR-39, Neutron flux

Abstract

The neutron flux of the Triga Mark III research reactor was studied using nuclear track detectors. The facility of the National Institute for Nuclear Research (ININ), operates with a new core load of 85 LEU 30/20 (Low Enriched Uranium) fuel elements. The reactor provides a neutron flux around 2 × 1012 n cm-2s-1 at the irradiation channel. In this channel, CR-39 (allyl diglycol policarbonate) Landauer® detectors were exposed to neutrons; the detectors were covered with a 3 mm acrylic sheet for (n, p) reaction. Results show a linear response between the reactor power in the range 0.1 - 7 kW, and the average nuclear track density with data reproducibility and relatively low uncertainty (±5%). The method is a simple technique, fast and reliable procedure to monitor the research reactor operating power levels.

Downloads

Download data is not yet available.

References

G. Espinosa, Nuclear Tracks in Solids. UNAM, Mexico (1994).

J.K. Palfalvi and L. Sajo-Bohus, Radiation Measurements 28, 483 (1997). https://doi.org/10.1016/S1350-4487(97)00125-X

K. Amgarou, M. Trocmé, M.J. García-Fusté, M. Vanstalle, E. Baussan, A. Nourreddine and C. Domingo, Radiation Measurements 50, 61 (2013). https://doi.org/10.1016/j.radmeas.2012.11.015

J.K. Palfalvi, L. Sajo-Bohus, M. Balaskó and I. Balásházy, Radiation Measurements 34, 471 (2001). https://doi.org/10.1016/S1350-4487(01)00209-8

R. Bedogni, C. Domingo, A. Esposito, A. Gentile, M.J. García-Fusté, M. de-San-Pedro, L. Tana, F. d’Errico, R. Ciolini and A. Di Fulviod, Radiation Measurements 50, 78 (2013). https://doi.org/10.1016/j.radmeas.2012.04.009

S.R. Hashemi-Nezhad, M. Dolleiser, R. Brandt, W. Westmeier, R. Odoj, M.I. Krivopustov, B.A. Kulakov and A.N. Sosnin, Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment 493, 121 (2002). https://doi.org/10.1016/S0168-9002(02)01551-6

E.S. Kristof, R. Ilic, M. Humar and J. Skvarc, Proceedings of 4th Regional Meeting Nuclear Energy in Central Europe, 381-387 (1997).

J.K. Palfalvi, L. Sajo-Bohus and M. Balaskó, Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment 476, 452 (2002). https://doi.org/10.1016/S0168-9002(01)01489-9

A.R. El-Sersy and S.A. Eman, European Physical Journal A 44, 397 (2010). https://doi.org/10.1140/epja/i2010-10975-1

F. Aguilar-Hernandez, MEXICAN TRIGA MARKIII REACTOR (International Atomic Energy Agency, 2015). Retrieved from https://wwwpub.iaea.org/MTCD/Publications/PDF/SupplementaryMaterials/D482/LatinAmericaAndTheCaribbean.pdf

F. Castillo, G. Espinosa, J.I. Golzarri, D. Osorio, J. Rangel, P.G. Reyes and J.J.E. Herrera, Radiation Measurements 50, 71 (2013). https://doi.org/10.1016/j.radmeas.2012.09.007

G. Espinosa, J.I. Golzarri, I. Gamboa, L. Tommasino and R. Griffith, International Journal of Radiation Applications and Instrumentation. Part D. Nuclear Tracks and Radiation Measurements 12, 235 (1986). https://doi.org/10.1016/1359-0189(86)90578-9

R. Gammage and G. Espinosa, Radiation Measurements 28, 835 (1997). https://doi.org/10.1016/S1350-4487(97)00193-5

Downloads

Published

2021-02-10

How to Cite

(1)
Vázquez-López, C. .; Ángel-Gómez, O. D.; Raya-Arredondo, R.; S. Cruz-Galindo, S.; Golzarri-Moreno, J. I.; Espinosa, G. Changes of the Neutron Flux of the Nuclear Reactor Triga Mark III Since the Conversion from High to Low 235U Enrichment. J. Nucl. Phy. Mat. Sci. Rad. A. 2021, 8, 149-153.

Issue

Section

Articles

Most read articles by the same author(s)

1 2 > >>