Beam dynamics study of a 30 MeV electron linear accelerator to drive a neutron source
Beam dynamics study of a 30 MeV electron linear accelerator to drive a neutron source
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DOI：
10.1063/1.4865178
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发表时间：
2014-02
影响因子：
3.2
通讯作者：
Sandeep Kumar;Haeryong Yang;Heung-Sik Kang
中科院分区：
文献类型：
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作者：
Sandeep Kumar;Haeryong Yang;Heung-Sik Kang
利用PARMELA模拟程序对基于32 MeV/18.47 kW电子直线加速器的实验中子装置进行了研究。对行波恒梯度电子加速器进行束流动力学研究，以达到最佳运行参数（E = 30 MeV，P = 18 kW，99%粒子的dE/E < 12.47%）。整个直线加速器主要由电子枪、预聚束器、聚束器和2个加速柱组成。该直线加速器考虑采用盘式加载、轴上耦合、2π/3 模式类型加速射频腔。经过对直线加速器参数的多次优化，直线加速器末端获得了32 MeV的束流能量。因为需要高电子能量才能产生可接受的中子通量。最终的中子通量估计为 5 × 1011 n/cm2/s/mA。未来的发展将是基于S波段行波的30 MeV电子直线加速器的真正设计。
An experimental neutron facility based on 32 MeV/18.47 kW electron linac has been studied by means of PARMELA simulation code. Beam dynamics study for a traveling wave constant gradient electron accelerator is carried out to reach the preferential operation parameters (E = 30 MeV, P = 18 kW, dE/E < 12.47% for 99% particles). The whole linac comprises mainly E-gun, pre-buncher, buncher, and 2 accelerating columns. A disk-loaded, on-axis-coupled, 2π/3-mode type accelerating rf cavity is considered for this linac. After numerous optimizations of linac parameters, 32 MeV beam energy is obtained at the end of the linac. As high electron energy is required to produce acceptable neutron flux. The final neutron flux is estimated to be 5 × 1011 n/cm2/s/mA. Future development will be the real design of a 30 MeV electron linac based on S band traveling wave.