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目的通过对同步辐射光源电子直线加速器输运段以及储存环所在工作大厅周围辐射场特性分布的研究,掌握类似装置辐射屏蔽应关注的问题。方法采用经验公式以及FLUKA程序对直线加速器屏蔽体外的剂量率进行计算和模拟,并对结果进行比较分析。结果取得了较好的一致性。结论在进行直线加速器的刮束器类部件检修时,应做好防护工作,使有关人员避免受到不必要的照射。直线加速器的运行对外环境和工作人员的影响很小,可以忽略。利用经验公式和利用Monte Carlo进行屏蔽计算两种方法各有其特点,在实际使用时可灵活选择合适的方法。
Aim To study the distribution of the radiation field around the working chamber where the synchrotron radiation light source electron linear accelerator and the storage ring are located, and to grasp the issues that should be paid attention to for the radiation shielding of similar devices. Methods Empirical formula and FLUKA program were used to calculate and simulate the dose rate of the linear accelerator in vitro and the results were compared and analyzed. The results achieved good consistency. Conclusions During the maintenance of the beam accelerator components of the linear accelerator, the protective work should be done so as to prevent the persons involved from being exposed to unnecessary radiation. Linear accelerator operation of the external environment and the impact of staff is small, can be ignored. The use of empirical formula and the use of Monte Carlo shielding calculation of the two methods have their own characteristics, the actual use of the flexibility to choose the appropriate method.