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FLUKA在永久磁铁辐射退磁实验模拟中的应用
Application of FLUKA in Simulation of Radiation-Induced Demagnetization Experiment of Permanent Magnet
【摘要】 利用FLUKA程序,对韩国浦项加速器实验室的2.5 GeV电子直线加速器辐射退磁实验系统进行蒙特卡罗模拟,得到了永久磁铁处各种粒子(包括光子、电子、中子及质子)的能谱以及注量的空间分布。根据实验中的束流强度,估算出永久磁铁所受的吸收剂量率和1 MeV等效中子注量率分别为18.7 Gy/s和6.37×107cm-2.s-1。
【Abstract】 Monte-Carlo simulation of the radiation-induced demagnetization experiment system with 2.5 GeV electron linear accelerator at Korea Pohang Accelerator Laboratory(PAL) was carried out with FLUKA code.The spectra of various particles,including photon,electron,neutron and proton,and spatial distribution of fluence were derived.Furthermore the absorbed dose rate and 1 MeV equivalent neutron fluence of permanent magnet were estimated as 18.7 Gy/s and 6.37×107 cm-2·s-1 according to the beam intensity in the experiment.
【关键词】 蒙特卡罗方法;
FLUKA程序;
辐射退磁;
电子直线加速器;
【Key words】 Monte-Carlo method; FLUKA code; radiation demagnetization; electron accelerator;
【Key words】 Monte-Carlo method; FLUKA code; radiation demagnetization; electron accelerator;
【基金】 国家自然科学基金资助项目(10775084);高能质子加速器辐射防护关键问题研究资助项目
- 【文献出处】 原子能科学技术 ,Atomic Energy Science and Technology , 编辑部邮箱 ,2008年S1期
- 【分类号】TL503.8
- 【被引频次】6
- 【下载频次】172