JOURNAL ARTICLE

A NEW DOSE DETERMINATION METHOD FOR HP(3) AND DP LENS FOR BETA REFERENCE RADIATION QUALITIES.

  • Published In: Radiation Protection Dosimetry, 2023, v. 199, n. 7. P. 615 1 of 3

  • Database: Applied Science & Technology Source Ultimate 2 of 3

  • Authored By: Teng, Zhongbin; Song, Mingzhe; Liu, Senlin; Ni, Nin; Wei, Kexin; Liu, Yuntao; Hang, Zhongbin; Geng, Xuan; Hu, Kaixuan; Li, Qiao; Jia, Minghan; Li, Dehong 3 of 3

Abstract

This article focuses on a new dose determination method based on Monte Carlo (MC) simulations to reduce uncertainties in the operational quantities Hp(3; α) (personal dose equivalent at 3 mm depth) and Dp lens(α) (personal absorbed dose in the eye lens) within ^90Sr/^90Y beta reference radiation fields. The study calculates conversion coefficients and factors from the absorbed dose in air at the detector reference point to these quantities using detailed MC models of the radiation source, phantoms defined by the International Organization for Standardization (ISO), and eye and head phantoms with Chinese anatomical characteristics. Compared to the current ISO 6980 standard method, the proposed full-MC method achieves uncertainty reductions ranging from approximately 7.7% to 55% across irradiation angles from 0° to 60°, enhancing calibration accuracy for eye lens dosemeters. Additionally, the study provides conversion coefficients for more irradiation conditions than those covered in ISO 6980-3, tailored for use in China, supporting improved operational quantity transfer in occupational radiation protection.

Additional Information

  • Source:Radiation Protection Dosimetry. 2023/05, Vol. 199, Issue 7, p615
  • Document Type:Article
  • Subject Area:Physics
  • Publication Date:2023
  • ISSN:01448420
  • DOI:10.1093/rpd/ncad058
  • Accession Number:163536293
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