The Risk Assessment of Cancer Risk during Normal Operation of Tehran Research Reactor Due to Radioactive Gas Emission

Authors: B. Salmasian, A. Rabiee, T. Yousefzadeh

Abstract:

In this research, the risk assessment of radiation hazard for the Research Nuclear Reactor has been studied. In the current study, the MCNPx computational code has been used and coupled with a developed program using MATLAB software to evaluate Total Effective Dose Equivalent (TEDE) and cancer risk according to the BEIR equations for various human organs. In this study, the risk assessment of cancer has been calculated for ten years after exposure, in each of body organs of different ages and sexes. Also, the risk assessment of cancer has been calculated in each of body organs of different ages and sexes due to exposure after the retirement of the reactor staff. According to obtained results, a conservative whole-body dose rate, during a year, is 0.261 Sv and the probability the cancer risk for women is more than men and for children is more than adults. It has been shown that thyroid cancer was more possible than others.

Keywords: MCNPx code, BEIR equation, equivalent dose, risk analysis.

Digital Object Identifier (DOI): doi.org/10.5281/zenodo.3299349

References:

[1] Thompson, T. J. (1964). The Technology of Nuclear Reactor Safety, vol. 1. MlT, Cambridge, Mass.
[2] Yousefzadeh Hassanluei, T. R. (2015). The Monte Carlo Simulation of the Absorbed Equivalent Dose in Humans Modeling Due to Tehran Research Reactor and Radioactive Gases Released from It. Journal of Environmental Health Engineering, 3(1), 61-68.
[3] BEIR, V. (1990). Health effects of exposure to low levels of ionizing radiation. Washington DC: EEUU, 22-45.
[4] Gharari, R. (2018). Risk Assessment of Radiation Hazard for a Typical WWER1000: Cancer Risk Analysis during a Hypothetical Accident. ICNEET 2018: 20th International Conference on Nuclear Energy Engineering and Technology. Prague, Czechia.
[5] Raza, S. S. (2005). Atmospheric dispersion modeling for an accidental release from the Pakistan Research Reactor-1 (PARR-1). Annals of nuclear energy 32.11, 1157-1166.
[6] Anvari, L. S. (2012). Assessment of the total effective dose equivalent for accidental release from the Tehran Research Reactor. Annals of Nuclear Energy 50, 251-255.
[7] FSAR. (n.d.). In F. (Table, Emission Rates of Noble Gases (pp. Chapter: 12, 18 of 30).
[8] Estimating Cancer Risk. National Research Council. (2006). In Health Risks from Exposure to Low Levels of Ionizing Radiation: BEIR VII Phase 2. Washington, DC: The National Academies Press.
[9] FSAR. (n.d.). FSAR (Final Safety Analysis Report) for TRR Table. In Air borne Radionuclide Analysis Report (pp. Chapter: 3, 24 of 52).