Avaliação da contribuição dos diferentes componentes da radiação cósmica atmosférica na dose em tripulações de aeronaves
DOI:
https://doi.org/10.15392/bjrs.v3i1A.171Keywords:
radiação cósmica, aeronautas, monitoramento da radiaçãoAbstract
As tripulações e passageiros de aeronaves são expostos à radiação cósmica atmosférica. O fluxo destas radiações é modulado pelo ciclo solar e clima espacial, variando com a latitude geomagnética e com a altitude. Este trabalho apresenta um estudo das contribuições das radiações no equivalente de dose ambiente total de tripulações em função da altitude de voo até 20 km, durante máximo e mínimo solar e em regiões equatorial e polar. Foram utilizados os resultados de cálculos dos fluxos de partículas gerados por meio dos códigos EXPACS e QARM. As partículas avaliadas que contribuem significativamente no equivalente de dose ambiente são os nêutrons, prótons, elétrons, pósitrons, alfas, fótons, múons e píons carregados. Esta avaliação permite caracterizar a origem da dose recebida por tripulações e, também, fundamentar um projeto de um sistema dosimétrico adequado para este campo de radiação ionizante no interior de aeronaves e em solo.
Downloads
References
BARTLETT, D. T. Radiation protection aspects of the cosmic radiation exposure of aircraft crew. Radiation Protection Dosimetry, v. 109, n. 4. p. 349–355, 2004.
DURANTE M. e CUCINOTTA, F. Physical basis of radiation protection in space travel. Reviews of Moderns Physics, v 83, p. 1245-1281, 2011.
FEDERICO C. A. et al. Cosmic Radiation effects on aircrew and avionics in the brazilian airspace. Em: Simpósio Aeroespacial Brasileiro – SAB 2012, 2012, São José dos Campos, São Paulo.
FEDERICO, C. A. Dosimetria da radiação cósmica no interior de aeronaves no espaço aéreo brasileiro. 2011. 172f. Tese (Doutorado em Ciências na Área de Tecnologia Nuclear) – Instituto de Pesquisas Energéticas e Nucleares, São Paulo.
FEDERICO, C. A. et al. Effects of cosmic radiation in aircrafts: A discussion about aircrew over South America. Journal of Aerospace Technology and Management, v. 4, n. 2. p. 219–255, 2012.
FEDERICO, C. A. et al. Neutron spectra measurements in the south Atlantic anomaly region. Radiation Measurements, v. 45, n. 10. p. 1526–1528, 2010.
HAJEK, M. et al. A TLD-based personal dosemeter system for aircrew monitoring. Radiation Protection Dosimetry, v. 110, n. 1-4, p. 337–341, 2004.
ICRP - International Commission on Radiological Protection. 1990 Recommendations of the International Commission on Radiological Protection. ICRP Publication 60. Ann. ICRP 21 (1–3), 1991.
ICRP - International Commission on Radiological Protection. Conversion coefficients for use in radiological protection against external radiation. ICRP Publication 74. Ann. ICRP 26 (3-4), 1996.
ICRP - International Commission on Radiological Protection. The 2007 Recommendations of the International Commission on Radiological Protection. ICRP Publication 103. Ann. ICRP 37 (2–4), 2007.
LEI, F. et al. An Atmospheric Radiation Model Based on Response Matrices Generated by Detailed Monte Carlo Simulations of Cosmic Ray Interactions. IEEE Transactions on Nuclear Science, v. 51, n. 6, p. 3442-3451, 2004.
LIM, M. K. Cosmic Ray: are Air Crew at Risk, Occupational & Environmental Medicine, v. 59, p. 428-433, 2002.
SATO T. e NIITA, K. Analytical Functions to Predict Cosmic-Ray Neutron Spectra in the Atmosphere, Radiation Research, v. 166, p. 544-555, 2006.
SATO T. et al. Development of PARMA: PHITS`-based Analytical Radiation Model in the Atmosphere. Radiation Research, v. 170, p. 244-259. 2008.
Published
Issue
Section
Categories
License
Copyright (c) 2015 Brazilian Journal of Radiation Sciences
This work is licensed under a Creative Commons Attribution 4.0 International License.
Licensing: The BJRS articles are licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/
How to Cite
