Comparison of Different Methods for Shielding Design in Computed Tomography
Apstrakt
The purpose of this work is to compare different methods for shielding calculation in computed tomography (CT). The BIR-IPEM (British Institute of Radiology and Institute of Physics in Engineering in Medicine) and NCRP (National Council on Radiation Protection) method were used for shielding thickness calculation. Scattered dose levels and calculated barrier thickness were also compared with those obtained by scatter dose measurements in the vicinity of a dedicated CT unit. Minimal requirement for protective barriers based on BIR-IPEM method ranged between 1.1 and 1.4 mm of lead demonstrating underestimation of up to 20 % and overestimation of up to 30 % when compared with thicknesses based on measured dose levels. For NCRP method, calculated thicknesses were 33 % higher (27-42 %). BIR-IPEM methodology-based results were comparable with values based on scattered dose measurements, while results obtained using NCRP methodology demonstrated an overestimation of the minimal required barri...er thickness.
Izvor:
Radiation Protection Dosimetry, 2011, 147, 1-2, 133-136Finansiranje / projekti:
- Nove tehnologije za monitoring i zaštitu životnog okruženja od štetnih hemijskih supstanci i radijacionog opterećenja (RS-MESTD-Integrated and Interdisciplinary Research (IIR or III)-43009)
DOI: 10.1093/rpd/ncr287
ISSN: 0144-8420
PubMed: 21743070
WoS: 000296355500032
Scopus: 2-s2.0-81255173117
Kolekcije
Institucija/grupa
VinčaTY - JOUR AU - Ciraj-Bjelac, Olivera AU - Aranđić, Danijela AU - Košutić, Duško D. PY - 2011 UR - https://vinar.vin.bg.ac.rs/handle/123456789/4541 AB - The purpose of this work is to compare different methods for shielding calculation in computed tomography (CT). The BIR-IPEM (British Institute of Radiology and Institute of Physics in Engineering in Medicine) and NCRP (National Council on Radiation Protection) method were used for shielding thickness calculation. Scattered dose levels and calculated barrier thickness were also compared with those obtained by scatter dose measurements in the vicinity of a dedicated CT unit. Minimal requirement for protective barriers based on BIR-IPEM method ranged between 1.1 and 1.4 mm of lead demonstrating underestimation of up to 20 % and overestimation of up to 30 % when compared with thicknesses based on measured dose levels. For NCRP method, calculated thicknesses were 33 % higher (27-42 %). BIR-IPEM methodology-based results were comparable with values based on scattered dose measurements, while results obtained using NCRP methodology demonstrated an overestimation of the minimal required barrier thickness. T2 - Radiation Protection Dosimetry T1 - Comparison of Different Methods for Shielding Design in Computed Tomography VL - 147 IS - 1-2 SP - 133 EP - 136 DO - 10.1093/rpd/ncr287 ER -
@article{ author = "Ciraj-Bjelac, Olivera and Aranđić, Danijela and Košutić, Duško D.", year = "2011", abstract = "The purpose of this work is to compare different methods for shielding calculation in computed tomography (CT). The BIR-IPEM (British Institute of Radiology and Institute of Physics in Engineering in Medicine) and NCRP (National Council on Radiation Protection) method were used for shielding thickness calculation. Scattered dose levels and calculated barrier thickness were also compared with those obtained by scatter dose measurements in the vicinity of a dedicated CT unit. Minimal requirement for protective barriers based on BIR-IPEM method ranged between 1.1 and 1.4 mm of lead demonstrating underestimation of up to 20 % and overestimation of up to 30 % when compared with thicknesses based on measured dose levels. For NCRP method, calculated thicknesses were 33 % higher (27-42 %). BIR-IPEM methodology-based results were comparable with values based on scattered dose measurements, while results obtained using NCRP methodology demonstrated an overestimation of the minimal required barrier thickness.", journal = "Radiation Protection Dosimetry", title = "Comparison of Different Methods for Shielding Design in Computed Tomography", volume = "147", number = "1-2", pages = "133-136", doi = "10.1093/rpd/ncr287" }
Ciraj-Bjelac, O., Aranđić, D.,& Košutić, D. D.. (2011). Comparison of Different Methods for Shielding Design in Computed Tomography. in Radiation Protection Dosimetry, 147(1-2), 133-136. https://doi.org/10.1093/rpd/ncr287
Ciraj-Bjelac O, Aranđić D, Košutić DD. Comparison of Different Methods for Shielding Design in Computed Tomography. in Radiation Protection Dosimetry. 2011;147(1-2):133-136. doi:10.1093/rpd/ncr287 .
Ciraj-Bjelac, Olivera, Aranđić, Danijela, Košutić, Duško D., "Comparison of Different Methods for Shielding Design in Computed Tomography" in Radiation Protection Dosimetry, 147, no. 1-2 (2011):133-136, https://doi.org/10.1093/rpd/ncr287 . .