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首页> 外文期刊>Mapan: Journal of Metrology Society of India >Comparative Study on Absorbed Dose Distribution of Potato and Onion in X-ray and Electron Beam System by MCNPX2.6 Code
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Comparative Study on Absorbed Dose Distribution of Potato and Onion in X-ray and Electron Beam System by MCNPX2.6 Code

机译：MCNPX2.6码X射线和电子束系统中土豆和洋葱吸收剂量分布的比较研究

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摘要

The absorbed dose distribution and depth dose of X-ray and electron irradiation in a phantom of water, a box of onion and potato powder, and a box of fresh onions and potatoes were calculated by using Monte Carlo N-Particle extended (MCNPX2.6) code. Simulation parameters were extracted from a Rhodotron accelerator at Yazd Radiation Processing Center (YRPC). The estimated absorbed dose distribution and depth dose in the water phantom show the well-distributed absorbed dose of 0.8-1.8 kGy for X-ray. This finding is consistent with the experimental results. However, the dose depth and distribution of electron irradiation are inappropriate. As such, the optimum conditions were obtained for electron irradiation by varying box thickness, beam current and distance between energy source and box surface. Optimum energy and current, box wall thickness, and distance between energy source and box surface were also estimated for onion and potato powders and for fresh onions and potatoes to achieve the appropriate dose distribution and desired depth dose of 1-3 kGy for onion and potato powder and 0.1-1 kGy for fresh onions and potatoes. Therefore, appropriate irradiation processes to powders and fresh materials are X-ray and electron irradiation, respectively.
机译：通过使用蒙特卡洛N粒子延伸（MCNPX2.6 ） 代码。从亚兹德辐射加工中心（YRPC）的rhodotron加速器提取模拟参数。水体幻影中估计的吸收剂量分布和深度剂量显示出X射线的0.8-1.8 kgy的良好分布的吸收剂量。这种发现与实验结果一致。然而，电子照射的剂量深度和分布是不合适的。因此，通过不同的盒子厚度，光束电流和能量源和箱面之间的距离来获得最佳条件。对于洋葱和马铃薯粉末以及新鲜洋葱和土豆，还估计了最佳能量和电流，盒子壁厚和能源和箱体表面之间的距离，以实现适当的剂量分布和洋葱和马铃薯的1-3 kgy所需的深度剂量新鲜洋葱和土豆的粉末和0.1-1 kgy。因此，粉末和新鲜材料的适当照射方法分别是X射线和电子照射。

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