Title: The quantitative radiation dose by RC film for the continued low-dose-rate radiation of ~(32)P
Abstract:Objective:To study the distribution of radiation dose in space of 32P by EBT films.Methods: The curve of radiation dose and grey scale of film from 25 to 575cGy was built by linear accelerator.The rad...Objective:To study the distribution of radiation dose in space of 32P by EBT films.Methods: The curve of radiation dose and grey scale of film from 25 to 575cGy was built by linear accelerator.The radionuclide of 32P was dripped on 1.1cm×1.2cm filter paper.The twenty 1.5cm×1.5cm RC films ( thick film 0.225mm ) were overlap together ( total thickness 4.5mm) and the filter paper of 32P were placed on the top.There were 0.5 hours irradiation and the twenty films radiation dose were measured by standard curve.According to the thickness of film and radiation dose,the curve of radiation dose and distance was distributed.Results: The absorbed dose of the films at 0,0.225,0.45,0.675,0.9,1.125,1.35,1.8,2.025,2.25,2.475mm place were 265,175,120,98,68,55,39,25,19,16,12,5cGy.The fitting curve was Y=257.28e-1.4521X.Conclusion: The radiation dose of radionuclide 32P were decayed in distance by index mode and there was 53 times difference between the surface and 2.5mm distance of the 32P.Read More
Publication Year: 2009
Publication Date: 2009-01-01
Language: en
Type: article
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