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The primary stripper foil's lifetime is very important for high intensity proton accelerators. Besides high temperature, the wrinkle of the stripper foil is also harmful for the lifetime and the injection efficiency. However, the recent wrinkle simulation is still not perfect. In this paper, a new method for wrinkle analysis has been proposed for the first time, which is integrated with the buckling theory. Based on this method, the wrinkle vibration and the maximum wrinkle shape of the normally mounted foil have been simulated. Then, two mounting schemes for reducing the wrinkle have been contrasted. Finally, the foil mounting structure for CSNS has been designed. 相似文献
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The rapid cycling synchrotron (RCS) of the China Spallation Neutron Source (CSNS) is a high intensity proton ring with beam power of 100 kW. In order to control the residual activation to meet the requirements of hands-on maintenance, a two-stage collimation system has been designed for the RCS. The collimation system consists of one primary collimator made of thin metal to scatter the beam and four secondary collimators as absorbers. Thermal analysis is an important aspect in evaluating the reliability of the collimation system. The calculation of the temperature distribution and thermal stress of the primary collimator with different materials is carried out by using ANSYS code. In order to control the temperature rise and thermal stress of the primary collimator to a reasonable level, an air cooling structure is intended to be used. The mechanical design of the cooling structure is presented, and the cooling efficiency with different chin numbers and wind velocity is also analyzed. Finally, the fatigue lifetime of the collimator under thermal shocks is estimated. 相似文献
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乌克兰哈尔科夫物理技术研究所(KIPT)在建的100 MeV电子直线加速器,束流功率高达100 kW,给拦截式条带靶束流截面探测器的电极选材带来巨大的困难。通过ANSYS有限元分析程序对探头与束流的相互作用进行模拟,得到了探头材料在1.2 kW束流功率条件下的真空温升和受力、变形结果;通过初步的束流实验,观测了T300碳纤维束在束流作用下的信号情况,最终锁定用T300碳纤维束作为电极材料。这是国际上首次采用碳纤维束作为靶面电极。 相似文献
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