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Gomes RG, Braga KL, Mederios MPC, Stenders RM, Correa SCA, Rebello WF, Silva AX, R Andrade E. MCNPX computational modeling applied to the potential dose rates calculation of cargo scanning. Appl Radiat Isot 2021; 178:109967. [PMID: 34600284 DOI: 10.1016/j.apradiso.2021.109967] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2020] [Revised: 04/19/2021] [Accepted: 09/26/2021] [Indexed: 11/29/2022]
Abstract
This study focusses on the risk of potential exposure to radiation for personnel driving a truck as well as illegal individuals being transported in cargo containers. Inspection facilities usually use a high energy linear accelerator (linac) in order to inspect the cargo. Since this type of equipment has associated health risks due to potential unwanted exposure, the occupational and public dose limits should be calculated in order to develop safer work conditions. This work used a computation model running the code MCNPX to simulate a typical cargo inspection facility which used a linac operating at 4.5 MeV. Two scenarios were considered: (1) exposure of the driver to the primary beam due to a potential failure of the safety sensors; and (2) dose received by an illegal individual being transported inside the cargo container. The results show a dose of 0.8514 mSv per scan for the driver exposed to the primary X-ray beam, and 0.1997 mSv per scan for an individual transported in the cargo box. In conclusion, both the individual and the driver received a dose below the acceptable limit considered safe for an individual (1 mSv/year). However, that was the value of one scan; in a case in which multiple scans would be performed, the dose limit can be quickly exceeded. In that case, the limit would be exceeded by the driver faster than by the individual in the cargo.
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Affiliation(s)
- Renato G Gomes
- Nuclear Engineering Graduate Program, Federal University of Rio de Janeiro (COPPE/UFRJ), Rio de Janeiro, Brazil; Nuclear Engineering Graduate Program, Military Institute of Engineering, Rio de Janeiro, Brazil
| | - Kelmo L Braga
- Nuclear Engineering Graduate Program, Federal University of Rio de Janeiro (COPPE/UFRJ), Rio de Janeiro, Brazil
| | - Marcos P C Mederios
- Nuclear Engineering Graduate Program, Military Institute of Engineering, Rio de Janeiro, Brazil
| | | | | | - Wilson F Rebello
- State University of Rio de Janeiro, Faculty of Engineering and IBRAG, Rio de Janeiro, Brazil
| | - Ademir X Silva
- Nuclear Engineering Graduate Program, Federal University of Rio de Janeiro (COPPE/UFRJ), Rio de Janeiro, Brazil
| | - Edson R Andrade
- Nuclear Engineering Graduate Program, Federal University of Rio de Janeiro (COPPE/UFRJ), Rio de Janeiro, Brazil; Defense Engineering Graduate Program, Military Institute of Engineering, Rio de Janeiro, Brazil; Graduate Program in Development and Environment (PRODEMA/UFPB), Federal University of Paraíba, João Pessoa, Brazil.
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Fynan DA, Seo Y, Kim G, Barros S, Kim MJ. Photoneutron production in heavy water reactor fuel lattice from accelerator-driven bremsstrahlung. ANN NUCL ENERGY 2021. [DOI: 10.1016/j.anucene.2021.108141] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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Gomes RG, Braga KL, Silva AX, Correa SCA, Stenders RM, Rebello WF, Berdeguez MBT, Santos RFG, Andrade ER. Study on radiation dosimetry and radioprotection applied to Seaport Cargo Inspection Activity. Appl Radiat Isot 2020; 160:109130. [PMID: 32351222 DOI: 10.1016/j.apradiso.2020.109130] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2019] [Revised: 03/01/2020] [Accepted: 03/12/2020] [Indexed: 10/24/2022]
Affiliation(s)
- Renato G Gomes
- Nuclear Engineering Graduate Program, Federal University of Rio de Janeiro (COPPE/UFRJ), Rio de Janeiro, Brazil; Nuclear Engineering Graduate Program, Military Institute of Engineering (IME), Rio de Janeiro, Brazil
| | - Kelmo L Braga
- Nuclear Engineering Graduate Program, Federal University of Rio de Janeiro (COPPE/UFRJ), Rio de Janeiro, Brazil
| | - Ademir X Silva
- Nuclear Engineering Graduate Program, Federal University of Rio de Janeiro (COPPE/UFRJ), Rio de Janeiro, Brazil
| | | | | | - Wilson F Rebello
- Rio de Janeiro State University, Faculty of Engineering and IBRAG, Rio de Janeiro, Brazil
| | - Mirta B T Berdeguez
- Nuclear Engineering Graduate Program, Federal University of Rio de Janeiro (COPPE/UFRJ), Rio de Janeiro, Brazil
| | - Raphael F G Santos
- Nuclear Engineering Graduate Program, Federal University of Rio de Janeiro (COPPE/UFRJ), Rio de Janeiro, Brazil
| | - Edson R Andrade
- Defense Engineering Graduate Program, Military Institute of Engineering (IME), Rio de Janeiro, Brazil.
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Hodges M, Barzilov A, Chen YT, Lowe D. Computational study of radiation doses at UNLV accelerator facility. EPJ WEB OF CONFERENCES 2017. [DOI: 10.1051/epjconf/201715307027] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
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