|
|
|
| Reproduction of Tissue Absorbed Dose Based on Beta Radiation Source |
| HUANG Jian-wei1,ZHANG Xuan1,LI De-hong1,YANG Yang1,CHENG Jian-bo1,ZHANG Xiao-le1,2,CAO Lei1,3 |
1. National Institute of Metrology, Beijing 100029, China
2. Lanzhou University, Lanzhou, Gansu 730000,China
3. Beijing Normal University, Beijing 100011, China |
|
|
|
|
Abstract In order to reproduce the magnitude of the absorbed dose of β-ray tissue, the radiation field based on 90Sr/90Y and 85Kr sources and the extrapolated ionization chamber parameters, as well as the related correction factors of the extrapolated ionization chamber, were obtained through experiments and simulation calculations, and flattening was achieved. The magnitude of the tissue absorbed dose rate under the filter condition was reproduced. It provides a basis for the subsequent participation in the international comparison of β-particle raidation doses and the transfer of β-particle raidation personal dose equivalents Hp(0.07).
|
|
Received: 17 June 2021
Published: 21 September 2023
|
|
|
|
|
|
| ［5］ |
Brunzendorf J. Determination of depth-dose curves in beta dosimetry［J］.Radiation Protection Dosimetry,2012,151(2):203-210.
|
| ［7］ |
ICRU Report 57 Conversion coefficients for use in radiological protection against external radiation［R］. 1998.
|
| ［1］ |
李景云. 肢端剂量计和核设施弱贯穿辐射(主要是β辐射)的辐射防护监测［J］. 辐射防护,2003,23(5):300-307.
|
| ［9］ |
ICRU Report 90. Key data for ionizing-radiation dosimetry: measurement standards and applications［R］.2016.
|
| ［14］ |
Bhm J. The National Primary Standard of the PTB for Realizing the Unit of the Absorbed Dose Rate to Tissue for Beta Radiation:PTB Report DOS-13［R］.1986.
|
| ［2］ |
ISO 6980-2 Nuclear energy — Reference beta-particle radiation — Part 2: Calibration fundamentals related to basic quantities characterizing the radiation field［S］.2019.
|
| ［8］ |
Behrens R. Correction factors for primary beta dosimetry［J］. Metrologia, 2020,57:1-26.
|
| ［10］ |
Palansi S T, Vandana S, Bakshi A K, et al. Monte Carlo-based Spencer-Attix and Bragg-Gray tissue-to-air stopping power ratios for ISO beta sources［J］.Radiation Protection Dosimetry,2016,168(3):184-189.
|
|
Teng Z B, Song M Z, Wang H Y,et al. The Monte Carlo Modeling and Experimental Verification of the 90Sr/90Y Source and the Extrapolation Chamber ［J］. Acta Metrologica Sinica, 2022, 43(11): 1512-1517.
|
| ［3］ |
ISO 6980-1 Nuclear energy —Reference beta-particle radiation-Part 1: Methods of production ［S］. 2019.
|
| ［4］ |
Behrens R,Hilgers G. Photon spectra from beta sources of the Beta Secondary Standard BSS 2［J］. JINST, 2011,6:P09006.
|
| ［6］ |
Brunzendorf J.Depth-dose curves of the beta reference fields 147Pm, 85Kr and 90Sr/90Y produced by the Beta Secondary Standard BSS 2［J］.Radiation Protection Dosimetry,2012,151(2):.211-218.
|
| ［12］ |
Skubacz K. Application of the Bohm chamber for reference beta dose measurements and the calibration of personal dosimeters［J］. Nukleonika,2016,61(1):61-67.
|
| ［13］ |
Pruitt J S, Soares C G, Ehrlich M. Calibration of beta-particle radiation instrumentation and sources［M］. NBS special publication,1988:250-21.
|
|
Li J Y. Extremity Dosemeter and Radiation Protection Monitoring in Nuclear Installations for Weakly Penetrating Radiation, Especially Beta Radiation［J］. Radiation Protection, 2003,23(5):300-307.
|
| ［11］ |
滕忠斌,宋明哲,王红玉,等.90 Sr/90Y放射源及外推电离室蒙特卡罗模型建立与实验验证［J］. 计量学报,2022, 43(11): 1512-1517.
|
| ［15］ |
ISO 6980.3—2019 Nuclear energy—Reference beta-particle radiation—Part 3: Calibration of area and personal dosemeters and the determination of their response as a function of beta radiation energy and angle of incidence［S］.2019.
|
|
|
|
2023, Vol. 44 
