RADIATION SAFETY PROCEDURES FOR FLOODED MEMBER  INSPECTION USING GAMMA TRANSMISSION TECHNIQUE:  A COMPREHENSIVE REVIEW

Đặng Quốc Triệu; Lại Viết Hải; Nguyễn Ngọc Nhật Anh; Phạm Quỳnh Giang

doi:10.34238/tnu-jst.11067

RADIATION SAFETY PROCEDURES FOR FLOODED MEMBER INSPECTION USING GAMMA TRANSMISSION TECHNIQUE: A COMPREHENSIVE REVIEW

About this article

Received: 05/09/24 Revised: 03/12/24 Published: 03/12/24

Authors

1. Dang Quoc Trieu , Centre for Applications of Nuclear Technique in Industry
2. Lai Viet Hai, Centre for Applications of Nuclear Technique in Industry
3. Nguyen Ngoc Nhat Anh, Centre for Applications of Nuclear Technique in Industry
4. Pham Quynh Giang, Nuclear Research Institute

Abstract

This paper provides a comprehensive review of radiation safety procedures in Flooded Member Inspection using the gamma transmission technique, a key nondestructive testing method in offshore oil and gas industries. This technique involves utilizing high-energy gamma-emitting isotopes, specifically Cobalt-60, to assess the integrity of submerged structures. The associated risks of using such radioactive materials demand the strict adherence to safety protocols to protect personnels, equipments, and the environment. This review outlines the methods for preparing, handling, transporting, and storing radioactive sources, emphasizing the importance of the As Low As Reasonably Achievable principle in minimizing radiation exposure. Additionally, the paper discusses the caculated foundations of radiation protection and dose management, illustrating how these principles ensure compliance with international safety standards. The results underscore the effectiveness of existing safety measures and provide recommendations for improving radiation protection practices in the FMI operations, having implications for enhancing offshore inspection safety and reliability.

Keywords

Radiation safety; Gamma transmission technique; Flooded member inspection; Radioactive source management; Offshore nondestructive testing

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References

[1] J. E. Turner, Atoms, Radiation, and Radiation Protection, 3rd ed., Wiley-VCH, 2007.

[2] United Nations Scientific Committee on the Effects of Atomic Radiation (UNSCEAR), Sources and Effects of Ionizing Radiation: UNSCEAR 2008 Report to the General Assembly with Scientific Annexes, United Nations, 2010.

[3] M. A. El-Reedy, “Risk-Based Inspection Technique,” in Offshore Structures, 1st ed., Oxford, UK: Elsevier, 2012, pp. 303-332.

[4] H. Cember and T. E. Johnson, Introduction to Health Physics, 4th ed., McGraw-Hill Education, 2009.

[5] J. Spencer, “Flooded Member Detection by Gamma Ray Technique,” Proc. 27th Annu. Offshore Technol. Conf., Houston, TX, USA, vol. 3, pp. 61-64, May 1995.

[6] M. G. Stabin and D. Broga, “Radiation Protection and Dosimetry: An Introduction to Health Physics,” Medical Physics, vol. 35, no. 10, p. 4766, Oct. 2008, doi: 10.1118/1.2979313.

[7] C. A. Marinho, E. F. O. de Jesus, A. H. M. F. T. Silva, D. F. Oliveira, and R. T. Lopes, “Annulus flooding detection system in flexible pipes using gamma rays transmission technique,” Appl. Radiat. Isot., vol. 183, p. 110177, Mar. 2022, doi: 10.1016/j.apradiso.2022.110177.

[8] R. Mijarez, P. Gaydecki, and F. M. Burdekin, “Flood member detection for real-time structural health monitoring of sub-sea structures of offshore steel oilrigs,” Smart Mater. Struct., vol. 16, no. 5, pp. 1857-1863, Sept. 2007, doi: 10.1088/0964-1726/16/5/042.

[9] B. M. Moores and D. Regulla, “A review of the scientific basis for radiation protection of the patient," Radiation Protection Dosimetry, vol. 147, no. 1-2, pp. 22–29, Sep. 2011, doi: 10.1093/rpd/ncr262.

[10] D. Watson and L. Robins, Tracerco Discovery™ – Subsea CT (Computed Tomography) Helps to Optimise Your Operational Pigging Campaign and Verify ILI Results: Technology for Pipeline Integrity and Flow Assurance Visualisation, Pigging Products & Services Association, UK, 2015.

[11] B. Shleien, L. A. Slaback, and B. K. Birky, Handbook of Health Physics and Radiological Health, 3rd ed., Lippincott Williams & Wilkins, 1998.

[12] International Commission on Radiological Protection (ICRP), The 2007 Recommendations of the International Commission on Radiological Protection (ICRP Publication 103), Elsevier, 2007.

[13] G. F. Knoll, Radiation Detection and Measurement, 4th ed., John Wiley & Sons, 2010.

[14] American National Standards Institute (ANSI), Radiation Safety for the Design and Operation of Particle Accelerators (ANSI/HPS N43.1-2011), ANSI, 2014.

[15] International Atomic Energy Agency (IAEA), Radiation Protection and Safety of Radiation Sources: International Basic Safety Standards (General Safety Requirements Part 3), IAEA, 2014.

[16] International Maritime Organization, International Maritime Dangerous Goods Code (IMDG Code). London, UK: IMO Publishing, 2020.

DOI: https://doi.org/10.34238/tnu-jst.11067

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