Dose assessment of Betatron electron beam: A key component of safe and secure industrial operations

被引:0
作者
Hashim, S. [1 ]
Omar, R. S. [2 ]
Ghoshal, S. K. [1 ]
Hanifah, N. Z. H. A. [1 ]
Bradley, D. A. [4 ,5 ]
Lee, Y. J. [3 ]
Goh, C. L. [3 ]
机构
[1] Univ Teknol Malaysia, Fac Sci, Dept Phys, Johor Baharu 81310, Malaysia
[2] Univ Kebangsaan Malaysia, Fac Sci & Technol, Dept Appl Phys, UKM Bangi 43600, Selangor, Malaysia
[3] Bill Prima Sdn Bhd, PTB 1587,Jalan Sengkang, Johor Baru 81000, Malaysia
[4] Sunway Univ, Ctr Appl Phys & Radiat Technol, Sch Engn & Technol, Petaling Jaya, Malaysia
[5] Univ Surrey, Ctr Nucl & Radiat Phys, Guildford GU2 7XH, Surrey, England
关键词
Betatron; Dose; Electron beam; Safety;
D O I
10.1016/j.radphyschem.2023.111058
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
For diverse industrial operations, the safety level of the electron beam generated by the Betatron has paramount significance, wherein the hazardous radiation dose requires constant monitoring and accurate evaluation. Human safety is the primary concern in using X-rays with high energy levels ranging from 3 to 20 MV for rapidly screening cargo containers and vehicles for security reasons. Considering these factors, we evaluated the radi-ation dosage associated with a typical 7.5 MV X-ray Betatron that is commonly used for full scanning of cargo and drivers in cargo security. The dose levels for organ equivalent, scanner boundary, and cargo were measured using TLD-100TM rod-type dosimeters, and RadEyeTM B20-ER alpha-beta-gamma survey meter. The results indicated that the dose level measured at the scanner boundary while the X-ray was operating for 12 s fell within the standard range of 0.015-0.295 & mu;Sv/h that can be realistically achieved in public areas. Additionally, it was observed that this level was below the control limit of 0.5 & mu;Sv/h. Moreover, the evaluation of organ dose levels in the Anthropomorphic Alderson Radiation Therapy phantom revealed that the equivalent dose assessments for organs such as the gonads, brain (left and right), and lens (left and right) ranged from 0.01 to 0.08 mSv. This range of values is deemed acceptable for public exposure since it is below the annual dose limit of 1 mSv. It has been determined that the Betatron electron beam, utilized for full cargo security scans, is highly secure even for drivers. This disclosure could serve as a foundation for systematically evaluating dosage and dissemi-nating information to increase public awareness and ensure environmental safety.
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页数:9
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  • [1] ACT, 2010, ACT 1984 2010
  • [2] American National Standards Institute (ANSI), 2021, N43162021 ANSI
  • [3] American National Standards Institute (ANSI), 2011, N4314201 ANSI
  • [4] American National Standards Institute (ANSI), 2008, 42 ANSI, V42, P46
  • [5] American National Standards Institute (ANSI), 2009, N4317 ANSI ANSIHPS
  • [6] [Anonymous], 2008, 20 NCRP
  • [7] [Anonymous], 2003, 16 NCRP
  • [8] Antolak Arlyn J., 2015, Reviews of Accelerator Science and Technology, V8, P27, DOI 10.1142/S1793626815300029
  • [9] Australian Customs Border Protection Service Hong Kong Customs, 2011, BEST PRACTICES USING, P1
  • [10] TL/OSL studies of Li2B4O7:Cu dosimetric phosphors
    Aydin, Talat
    Demirtas, Hayrunnisa
    Aydin, Samet
    [J]. RADIATION MEASUREMENTS, 2013, 58 : 24 - 32