1. CALCULATION OF CONVERSION COEFFICIENTS FOR VOXELIZED PHANTOMS FOR CRITICALITY ACCIDENT DOSIMETRY
- Author
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Pontier Jb, M.-A. Chevallier, François Trompier, Letang E, Duluc M, Morin H, and Evo S
- Subjects
Neutrons ,Radiation ,Radiological and Ultrasound Technology ,Dose calculation ,Phantoms, Imaging ,Computer science ,Orientation (computer vision) ,Radiation field ,Nuclear engineering ,Public Health, Environmental and Occupational Health ,General Medicine ,Radiation Dosage ,030218 nuclear medicine & medical imaging ,03 medical and health sciences ,0302 clinical medicine ,Criticality ,Accidents ,030220 oncology & carcinogenesis ,Conversion coefficients ,Dosimetry ,Radiology, Nuclear Medicine and imaging ,Radiometry ,Monte Carlo Method - Abstract
In the event of a criticality accident, not only the maximal doses received by the victims must be determined but it is also crucial to evaluate the doses to the different organs. With a neutron component, morphology is a key parameter in the organ dose calculation. As the simulation tools can be time consuming to proceed, especially if morphology is taken into account, for all the victims, it may be very useful to have a database of conversion coefficients that allow to obtain the organ doses from the dose measured in the dosemeter for different kinds of morphology. In this paper, we present a study performed to evaluate such conversion coefficients using voxelized anthropomorphic phantoms. These coefficients take into account two crucial parameters having an impact on the dose at the organs: the orientation of the victim in the radiation field and the morphology, that is to say the body mass index of the different victims.
- Published
- 2020