750 keV射频四极注入器水冷设计
Design of water-cooling system for 750 keV radio frequency quadrupole injector
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摘要: 750 keV，201.25 MHz的射频四极注入器为四杆型，电极长度124 cm，共16个支撑板。根据加速器射频结构设计的结果进行了水冷管道的结构设计，理论分析了管路的流体力学特性和传热学特性。在忽略结构形变的情况下，利用射频计算软件的稳态热分析功能计算了加速腔的温度分布，降低了模拟计算的难度。计算结果表明：加速腔的最大温升控制在1 K以内，水冷系统能够使加速器在适宜的温度下长时间稳定运行，设计结果很好地满足了物理需求。Abstract: The cooling design of a 201.25 MHz, 750 keV radio frequency quadrupole injector is described in this paper. The essential parameters for the design of the cooling pipes are obtained from the RF structure design. The hydrodynamics and thermal characteristics are theoretically analyzed. Computer simulation is performed using the steady state thermal analysis module of the radio-frequency software. Numerical computation shows that the increase of temperature is controlled within 1 K, the accelerator can work steadily with this cooling system. The cooling design satisfies the physical requirement very well．
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Key words:
- radio frequency quadrupole /
- accelerator /
- injector /
- rf structure /
- cooling system
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