Detailed tooth models for ICRP mesh-type reference computational phantoms

Abstract Emergency medical responders (EMRs), who save victims in a radiation emergency, are at risk of radiation exposure. In this study, the exposure dose to EMRs assisting contaminated patients was estimated using a Monte Carlo simulation, and will produce data that contributes to EMR education and anxiety reduction. Using the Monte Carlo simulation, we estimated radiation doses for adult computational phantoms with radioactive contamination conditions radiation dosages were based on findings from previous studies. At the contamination condition corresponding to the typical upper limit of general GM survey meters, the radiation doses of EMRs were estimated to be less than μSv per hour. In case of a heavier contamination due to mishandling of an intense radioactive source with hundreds of GBq or more, their radiation doses would be close to 100 mSv per hour. The results have implied that the radiological accident with a highly radioactive source would expose EMR to the risk of significant radiation exposure exceeding the dose limit. It is thus crucial that the authority or other party who are responsible for the health of EMRs ensures that they shall have necessary education and training on the effective measures for protecting themselves from the possible, excessive radiation exposure.

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Development of the two Korean adult tomographic computational phantoms for organ dosimetry

Medical Physics ◽

10.1118/1.2161405 ◽

2006 ◽

Vol 33 (2) ◽

pp. 380-390 ◽

Cited By ~ 56

Author(s):

Choonsik Lee ◽

Choonik Lee ◽

Sang-Hyun Park ◽

Jai-Ki Lee

Keyword(s):

Korean Adult ◽

Computational Phantoms

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Proton Dose Conversion Coefficients Based on Chinese Reference Adult Woman Voxel Phantom

Volume 1: Plant Operations, Maintenance, Engineering, Modifications, Life Cycle and Balance of Plant; Nuclear Fuel and Materials; Radiation Protection and Nuclear Technology Applications ◽

10.1115/icone21-15506 ◽

2013 ◽

Author(s):

Fangfang Liu ◽

Mingqi Shen ◽

Taosheng Li ◽

Chunyu Liu

Keyword(s):

Effective Dose ◽

Reference Data ◽

Absorbed Dose ◽

The Body ◽

Adult Woman ◽

Voxel Model ◽

Conversion Coefficients ◽

Computational Phantoms ◽

Posterior Anterior ◽

Anterior Posterior

In order to calculate the dose conversion coefficients for proton, the voxel model of Chinese Reference Adult Woman (CRAW) was established by the Monte Carlo transport code FLUKA according to the Chinese reference data and the Asian reference data. Compared with the reference data, the deviations of the mass for organs or tissues of CRAW is less than ±5%. Calculations have been performed for 14 incident monoenergetic protons energies from 0.02GeV to 10TeV at the irradiation incident of anterior-posterior (AP) and posterior-anterior (PA). The results of fluence-to-effective dose conversion coefficients are compared with data from the different models such as an anthropomorphic mathematical model, ICRP reference adult voxel model, the voxel-based visible Chinese human (VCH). Anatomical differences among various computational phantoms and the spatial geometric positions of the organs or tissues lead to the discrepancies of the effective dose conversion coefficients in the ranging from a negligible level to 107% at proton energies below 0.2GeV. The deviations of the coefficients, above 0.2GeV, are mostly within 10%. The results of fluence-to-organ absorbed dose conversion coefficients are compared with the data of VCH. The deviations of the coefficients, below and above 0.2GeV, are within 150% and 20%, respectively. The primary factors of the deviations for the coefficients should be due to the differences of the organ mass and the size of the body shape.

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